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Blockchain-Ads vs Coinzilla: a $10,000 door onto a wallet graph, or a €100 door onto the crypto front pages

Blockchain-Ads vs Coinzilla, read from both contracts and Trustpilot on 7 October 2026: $10,000 and a qualification call against EUR 100 and a passport.

Blockchain-Ads vs Coinzilla: a $10,000 door onto a wallet graph, or a €100 door onto the crypto front pages

Blockchain-Ads and Coinzilla sit at opposite ends of the same decision. One asks for $10,000 and a qualification call before it shows you an inventory it does not own, bought on a graph of wallet activity across a claimed 82 blockchains. The other asks for EUR 100 and a passport before it sells you banner slots on crypto sites you can open in a browser tab. We reviewed both, Blockchain-Ads at 4.5/10 and Coinzilla at 9/10, we hold no stake in either, and every figure below was read on 7 October 2026 (Trustpilot re-read on 14 October 2026) from the two companies’ own agreements, help centres, FAQs and Trustpilot profiles. Blockchain-Ads had rewritten its contract again since we last read it, so some of what follows is new even to readers of our review.

Key points

  • The door: Blockchain-Ads takes $10,000 as “the floor on every deposit” per its help centre, $360 a day per campaign, and $30,000 a month for managed service, after a 20 to 30 minute qualification call; its agreement now also names USD 30,000 as the “minimum initial funding” for managed accounts. Coinzilla takes EUR 100 in advance and EUR 50 a day per campaign, after identity verification through iDenfy.
  • The price: Blockchain-Ads’ FAQ now says media “is priced on CPM, cost per 1,000 impressions, starting around $7”; Coinzilla’s FAQ quotes EUR 0.2 for awareness traffic and EUR 3 for premium, bid per thousand.
  • The exit: Coinzilla’s terms say in capitals that all amounts paid are non-refundable, with one exception if Coinzilla ends the contract through no fault of yours. Blockchain-Ads’ Version 1.3 lets you ask for a refund only after 35% of all credit bought has been consumed, says the request “does not create a right to redemption or refund”, and expires untouched credit after twelve idle months.
  • The forum: Coinzilla contracts through Sevio Digital Limited in Dublin under Irish law and Irish courts. Blockchain-Ads contracts through BCA Labs Corporation in the British Virgin Islands, and in the space of a month its dispute clause has moved from arbitration in Singapore to the BVI courts to confidential arbitration in Road Town, Tortola.
  • Trustpilot: Blockchain-Ads 2.6/5 from 56 reviews, 25 of them one star, 37 posted in the last twelve months; Coinzilla 3.5/5 from 104, four in the last twelve months. Our scores: Blockchain-Ads 4.5/10, Coinzilla 9/10.

The short answer

For almost every crypto advertiser the answer is Coinzilla, and the reason is not that it is cheaper, although it is a hundred times cheaper to try. It is that everything Coinzilla sells can be checked from the outside. The placements are on named sites, the price is a bid you set against a number the platform shows you, the terms have not changed since July 2023, and the worst clause in them, the non-refundable deposit, is stated in capitals where you cannot miss it. Treat the first EUR 100 as the cost of finding out, and the downside is EUR 100.

Blockchain-Ads is the answer for a narrower buyer: a licensed exchange, casino or fintech with a five-figure monthly budget, an analytics team, and a product that can only be sold to people who already hold particular assets. It is the only platform in this comparison that claims to target by what a wallet holds, and the only one whose contract devotes twenty-two sections to explaining why the result is not its problem. The downside of finding out is $10,000, a 35% spend gate before you may even ask for it back, and an answer that the contract says is discretionary.

What each platform actually sells

Coinzilla is an ad network in the plain sense: it has publishers, it approves them by hand, and it sells their impressions. The terms price every campaign on “the price model of the advertising Campaign type chosen by the Advertiser (i.e., CPM)”, and the advertiser FAQ puts numbers on the two tiers, “the brand awareness traffic having a CPM of €0.2” and the premium one of €3. The inventory is “over 2,000 major websites and mobile apps” by its About page, with placements inside the CoinMarketCap app since July 2026 by its blog, and the homepage counts “1B+” impressions and “1.8M+” clicks a month. Targeting is country, device, website and ad zone, plus a retargeting product the page says “can boost conversion rates by up to 70% compared to cold ads”, a claim it does not source.

Blockchain-Ads is not an ad network, and its own paperwork is the most reliable witness. The agreement describes “an online demand-side advertising platform”, and clause 2.2, headed “No inventory ownership”, states that Blockchain-Ads “does not own the Inventory and does not operate the websites, applications, streaming services, CTV environments, or other properties on which advertisements may appear.” The help centre says the same in plainer words: “It operates as a demand-side platform, buying that inventory on your behalf through the NEXUS Ad Exchange.” The exchange reaches “the top 78 supply partners across 195+ countries”, in display, native, video, connected TV, in-app and Telegram formats, with a stated capacity of “1.2 billion ads a day”. What it adds on top of that supply is the audience layer: on-chain activity “across 11M+ wallets on 82 chains”, matched to browsers and devices, and sold as segments, plus custom audiences built “by providing the smart contract address or the list of wallet addresses you want to reach”. Geo, language and device targeting are listed almost as an afterthought.

That difference decides the rest of the comparison. Coinzilla can tell you where an ad ran because it sold the slot. Blockchain-Ads cannot, by contract: clause 2.3 says it “does not guarantee any placement, position, delivery time, impression volume, click volume, conversion, or other result”, and the remedy for an objectionable placement is prospective exclusion, nothing more. If you need to know the page your banner sat on, one of these platforms is built to answer and the other is built not to.

Getting in: a call and ten thousand dollars, or a passport and a hundred euros

Coinzilla’s door is a form and an identity check. The terms require “real personal information (first and last name, email address, country of residence, and full address)” before any payment, route individuals through iDenfy and companies through their incorporation documents, and make the account functional only after that process. Then comes the money: “a minimum amount of EUR 100” paid in advance, by bank wire, by crypto through CoinGate, or by card through Stripe since January 2025 according to the blog, with the homepage FAQ adding “a minimum daily budget of EUR 50 per campaign”. A campaign goes live “within 1 business day”, or up to 48 hours at weekends. Our KYC comparison sets that process beside the other networks’.

Blockchain-Ads’ door is a meeting. The Advertiser Qualification and Verification call, which the help centre calls “the only way to activate an advertiser account”, runs 20 to 30 minutes, covers business verification, objectives and “tailored benchmarks”, and ends with a decision; approvals follow “within 24 to 48 hours if no additional documents are needed”, and the documents may include “business registration proof, identity verification, or compliance certificates”. Miss the call and you wait 30 days to try again, with no guarantee of a second slot. The money comes next, and this is where the company’s own pages disagree. The help centre’s “authoritative article for all three figures” says $10,000 “is the floor on every deposit. Your first deposit and every top-up after it meet the same minimum”; the qualification page repeats that “the $10,000 minimum applies to every deposit”; the funding page, one click away, calls it “a one-time minimum deposit required to activate your advertiser account”. The daily figure is $360 per campaign, which the help centre describes as “a setting, not a payment”, and the arithmetic it offers is its own: at that rate one campaign spends a $10,000 deposit in roughly a month, three campaigns in about ten days. Our minimum daily budgets comparison runs the same sums for every network.

Managed service adds a third number that has now become two. The homepage and the help centre say managed service “requires a minimum monthly ad spend of $30,000”, and the help centre insists that “$30,000 is ad spend, not a deposit”. The agreement in force on 7 October says otherwise in clause 4.1: “The minimum initial funding is USD 10,000 for self-service and USD 30,000 for managed service.” Read together, a managed account is asked for $30,000 up front and $30,000 a month thereafter, or the help centre is out of date, and nothing on the site says which. The same clause rules out credit of any kind, “post-payment, deferred-payment, net, or net-plus”, and the homepage adds that advertisers “spend around $135K per month on average, with the highest spenders allocating $1M”. Coinzilla’s equivalent sentence is that it was “Chosen by over 80% of crypto advertisers”, a figure it does not source either. Both platforms take crypto, card and wire; Blockchain-Ads lists “150+ assets via Now Payments”, Stripe, ACH and SWIFT, and credits crypto at “the net USD value confirmed by the applicable payment processor after network and conversion charges”, while Coinzilla converts everything to euros through its processor and, since February 2025, no longer takes USDT at all.

What the contracts do with money you do not spend

Coinzilla’s rule takes one sentence, and the terms print it in capitals: “ALL AMOUNTS PAID BY ADVERTISING AGENTS AND REFLECTED IN USERS’ ACCOUNTS ARE NON-REFUNDABLE.” The single exception is a termination Coinzilla initiates through no fault of yours, after which you are “entitled to a refund of all the amounts paid in advance and not used”. Balances are described as having “a notional value, calculated and administered at our discretion”, a clause the company reserves for compliance holds, and an account idle for a year “will be permanently deleted, with no way of retrieving it or the paid and unused amounts”, after warning emails at seven days, 48 hours and 24 hours. It is harsh, it is short, and it has not changed since version 1.1 of 10 July 2023.

Blockchain-Ads’ rule takes twelve numbered clauses, and it has changed three times since we first read it. The version on the site until late September charged a $2,500 processing fee, withheld 20% for managed service and 10% for design, and closed requests 14 days after a campaign. Version 1.3, which the page dates as in effect from 21 September 2026, starts from “Advertising Credit is purchased for use, not withdrawal” and “Performance is never a refund ground”, then sets the gate: an advertiser in good standing “may submit a request for a discretionary closure refund only after at least 35% of the total paid Advertising Credit purchased by that Advertiser has been consumed”, and “Submission of a request does not create a right to redemption or refund.” If the request is approved, the money comes back after deducting delivered media, earned fees, “authorised non-cancellable Supply Partner commitments”, chargebacks and “documented third-party return costs”, within a written determination the company “will normally issue” in ten business days; crypto is returned at “the disclosed conversion rate at the time of refund, not the original number of tokens.” Two narrow rights survive: a refund of eligible unused credit if Blockchain-Ads itself terminates without cause, and a misrepresentation claim, which must be filed “within five business days after the affected Campaign starts” and cannot rest on “a forecast, benchmark, case study, audience estimate, expected result, sales discussion”. Payment errors must be reported within 30 days. And the agreement adds a clock the refund policy does not mention: clause 12.4 expires paid credit “after 12 consecutive months in which the Account neither runs a Campaign nor consumes Advertising Credit”, on 30 days’ notice, and “Expiry under this Section does not create a refund right.”

The billing FAQ, meanwhile, answers the question “Can I get a refund for unused funds?” twice on the same page: once with “No. Deposited funds are nonrefundable. Unused deposited funds are nonrefundable.” and once, in its summary table, with “No. Deposits are non-refundable except a platform error reported within 48 hours with 35% of the initial budget spent”. Neither matches the policy it links to. Our refund policies comparison reads this clause beside thirteen others, and the practical rule from it applies here with force: deposit the minimum, pause early, and get any promised exception in writing, because clause 14.5 says an account manager “may not vary the Agreement or promise a refund, credit, or exception unless authorised in a written amendment or Order.”

Then there is where you argue. Coinzilla’s terms are “governed by and construed in accordance with the laws of Ireland”, with disputes settled by the Irish courts. Blockchain-Ads’ agreement is governed by the laws of the British Virgin Islands and, in the copy we read on 7 October, sends any dispute to “confidential arbitration administered by the BVI International Arbitration Centre”, seated in Road Town, Tortola, before one arbitrator, after 30 days of senior-level discussion. A claim is barred unless arbitration begins within twelve months, and the company’s aggregate liability is capped at the greater of three months’ fees excluding media spend or USD 25,000. That is the third forum in a month: the agreement we read in late September named Singapore arbitration under SIAC rules, the copy of 28 September gave “the courts of the British Virgin Islands” exclusive jurisdiction, and the current text, still labelled Version 1.3 and dated 21 September, replaces the courts with a tribunal. Invalid traffic gets its own section: clause 7.1 calls it “an inherent risk of programmatic advertising”, states that Blockchain-Ads “accepts no responsibility and has no liability for Invalid Traffic generated by a third party”, gives you ten calendar days to dispute a report, and limits the remedy to restored credit that “is not refundable in cash”. Our seven red flags in network terms piece was written before this document existed; it would now need an eighth.

Targeting, formats and the speed of a “yes”

This is the one section Blockchain-Ads wins on paper, and it wins it by a distance. The FAQ describes “Top 82 blockchains” screened for on-chain signals, “11M+ active wallets” tracked out of “420M+ verified user profiles”, with only wallets active in the last 30 days matched as live audiences, extendable to 60, 90 or 120 days for custom segments. You can hand it a smart-contract address or a wallet list and ask for the people behind them. The honest caveat, which we set out in our guide to what wallet targeting actually is, is that the match between a wallet and a browser is probabilistic and unauditable from outside; the platform’s own on-chain conversion tracking is the only instrument that can tell you how often it is right, and you should wire it up before you fund the account. Formats run from display and native through video, connected TV, in-app, push, pop and Telegram, although the FAQ’s own banner specification lists just four sizes, 300×250, 320×50, 320×100 and 728×90, at 700 KB. Our Web3 ad networks ranking places it seventh of eight on exactly this trade: the richest targeting claims in the niche attached to the least verifiable delivery.

Coinzilla’s targeting is deliberately shallow. The FAQ’s answer is “Yes, you can target your audience based on country or device”, the site adds website and ad-zone selection and the retargeting product, and that is the list. Formats are classic banners in six sizes (300×250, 728×90, 160×600, 320×100, 300×600 and 320×50), header and sticky units, native, and pop-unders, with custom HTML5 banners from its design team. What it offers instead of a wallet graph is a place: the inventory is crypto and finance media, and the site at the top of the bid list is one you have heard of. For a product that any crypto-curious reader might buy, that is the better instrument. For a product that only holders of a particular token can use, it is a blunt one, and our Coinzilla vs Bitmedia head-to-head is the comparison to read if wallet targeting at a EUR 100 scale is the real question.

On speed the two are closer than their prices suggest. Coinzilla approves a campaign “within 1 business day”, 48 hours at weekends. Blockchain-Ads approves an account in 24 to 48 hours after the call, and clause 3.9 targets 48 hours for implementing a managed-campaign instruction, “an operational target, not a guarantee”.

The publisher side, where only one of them has a door

Coinzilla publishes its publisher terms. It “only accepts cryptocurrency-related websites and projects”, reviews each by hand against an unpublished traffic threshold (a January 2026 reply on Trustpilot confirms the threshold exists), caps placements at “3 banners at the same time on their website”, header and sticky included, and pays from EUR 50 “automatically weekly or monthly”, in BTC, ETH or by bank wire, in “1-2 business days” and up to a week. The USDT option its publisher page still advertises was withdrawn by a February 2025 blog post that tells publishers to switch to USDC, and the “no withdrawal fees” line in the FAQ sits against a terms clause that refuses to cover “the fees and commissions related to any transaction (including conversion costs)” on crypto payouts. Our publisher ranking puts it first all the same, because the alternatives publish less.

Blockchain-Ads has no publisher door at all. The address /publishers returns a page-not-found at the time of writing; the FAQ offers only that the company “has a strict selection and qualification process for onboarding new publishers” and points to the contact page, where the Telegram group it used to name has been removed. No payout floor, schedule, currency or revenue share is published anywhere, which follows from clause 2.2: a platform that does not own inventory has no publishers to pay, only supply partners. The public “partner program” is a referral scheme, “a lifetime 10% referral commission for all referrers”, and nothing to do with running ads on a site. For a publisher the comparison is therefore not a comparison, and our publisher requirements guide leaves Blockchain-Ads out for that reason.

Where each platform contradicts itself

We keep this section in every head-to-head because a company’s disagreements with itself are the cheapest evidence a buyer can collect. Blockchain-Ads supplies more of it than any network we cover. The $10,000 minimum applies to “every deposit, including top-ups” on two help pages and is “a one-time minimum deposit” on a third. Managed service is “ad spend, not a deposit” in the help centre and “minimum initial funding” of USD 30,000 in the agreement. The media kit and the inventory help page sell “69+” pre-built audience segments; the technology page says “around 1,000”. A homepage testimonial praises reach “across 10,000+ websites”; three other pages say “hundreds of thousands”. The FAQ says in one answer that media is “priced on CPM … starting around $7” and in the next that the average cost “can be found in the blockchain-ads media kit”, where it is not. The billing FAQ gives two refund answers that contradict each other and a third document. And the contract has moved its dispute forum twice in a month without changing its version number or its date.

Coinzilla’s contradictions are smaller and older. The FAQ says “No, multiple accounts are not allowed”; the terms say “A User can create multiple user accounts for the Coinzilla Platform”, each with its own KYC. The homepage and About page count “over 50,000 campaigns”; the Web3 and prediction-market pages say “20,000+”. The terms list USDT among accepted deposit coins and the publisher page offers USDT payouts, twenty months after the blog ended both. The network sells a pop-under format and reserves the right to reject publisher sites that “contain: any popup/popunder or page blocker”. And the advertiser FAQ’s format list, “Classic Banners, Header Banners, Sticky Banners, and Native Ads”, omits the pop-under the homepage advertises. None of these costs an advertiser money; the USDT one costs a publisher a support ticket. The difference in kind is that Coinzilla’s inconsistencies are stale marketing copy, and Blockchain-Ads’ are about how much you must pay and what you can get back.

Trustpilot, read properly

On 14 October 2026 Blockchain-Ads stood at 2.6 out of 5 from 56 reviews, labelled “Poor”: 25 one-star, 7 two-star, 7 three-star, 4 four-star and 13 five-star. Thirty-seven of the 56 arrived in the last twelve months, the profile is claimed and verified by Google, and the company has replied to 10% of its negative reviews. The recent page is a wall of one-star posts dated July and August 2026, two of which put the loss at around $20,000, several of which describe sales-call projections that the delivered traffic did not match, and one of which names the positive reviews as the reason the author signed up. The five-star reviews from June 2026 are specific and answered by the company; the one-star ones are specific and, for the most part, not. We cannot adjudicate the traffic-quality allegations from the outside, and clause 7.1 of the agreement means neither can an arbitrator, which is the point: at this platform the contract has been written so that the complaint most often made about it is not a ground for anything.

Coinzilla stood at 3.5 from 104, labelled “Average”: 10 one-star, 4 four-star, 90 five-star and nothing in between, with only four reviews in the last twelve months and replies to half of the negatives. The complaints are the two structural choices covered above, the non-refundable balance (a 2024 reviewer with EUR 450 left received the terms quoted back in reply) and publisher rejections, including a faucet operator told in 2025 that the network was “not accepting faucet-related websites”. There is nothing about traffic that was not delivered. A score of 3.5 built on 90 five-star reviews looks odd until you notice that Trustpilot weights recency and that Coinzilla has stopped collecting; the number is history, and the history is mostly benign.

Side by side

Blockchain-AdsCoinzilla
CompanyBCA Labs Corporation, Road Town, Tortola, British Virgin Islands; BVI law; confidential arbitration at the BVI International Arbitration CentreSevio Digital Limited, reg. 729804, Dublin; Irish law and Irish courts
Running since2021November 2016
Contract in forceAdvertiser Agreement Version 1.3, dated 21 September 2026, text replaced again by 7 OctoberTerms version 1.1 of 10 July 2023
What it isDemand-side platform; “does not own the Inventory”; 78 supply partners via the NEXUS exchangeAd network with its own approved publishers
Getting inQualification call of 20 to 30 minutes, approval in 24 to 48 hours, documents on requestSelf-serve signup; KYC through iDenfy or incorporation documents before the account works
Advertiser minimum$10,000, “the floor on every deposit” (help centre) or “one-time” (funding page); USD 30,000 initial funding for managed service (agreement)EUR 100 in advance
Daily minimum$360 per campaignEUR 50 per campaign
Buying modelCPM or CPC through the platform, “starting around $7” per the FAQ; no billing on acquisitions, deposits or revenue share (clause 4.5)CPM by bid; EUR 0.2 awareness, EUR 3 premium per the FAQ
Advertiser payment150+ cryptoassets via NowPayments, card via Stripe, ACH, SWIFT, Wise; crypto credited at net USD after processor chargesBank wire, crypto via CoinGate (USDT no longer accepted), card via Stripe; converted to EUR
RefundsDiscretionary after 35% of credit consumed; request “does not create a right”; determination in 10 business days; refund only by right if Blockchain-Ads terminates without causeNon-refundable, in capitals; exception only if Coinzilla terminates through no fault of yours
Idle balancesCredit expires after 12 idle months, on 30 days’ notice, no refund rightAccount and balance deleted after 1 idle year, after three warning emails
Invalid traffic“Inherent risk”; no liability for third-party invalid traffic; dispute within 10 calendar days; remedy is credit, not cashNot addressed as a refund ground; deposits non-refundable regardless
TargetingWallet holdings and activity across 82 chains, 11M+ active wallets, custom lists by contract or wallet address; geo, language, device and OSCountry, device, website, ad zone; retargeting
FormatsDisplay, native, video, connected TV, in-app, push, pop, Telegram; banner sizes listed: 300×250, 320×50, 320×100, 728×90Classic banners in 6 sizes, header, sticky, native, pop-under; HTML5
ApprovalAccount in 24 to 48 hours after the call; managed changes targeted at 48 hoursCampaign within 1 business day, up to 48 hours at weekends
Publisher entryNo public program; “strict selection and qualification process”; /publishers returns not found; referral scheme pays 10%Crypto sites only; manual review; threshold unpublished; max 3 banners per page
Publisher payoutNot publishedEUR 50 minimum, weekly or monthly, BTC, ETH or bank wire (USDC per the blog), 1 to 2 business days
Network size (own figures)78 supply partners, 195+ countries, 1.2 billion ads a day capacity, 9,670 advertisers since 20212,000+ websites, 1B+ impressions a month, 50,000+ campaigns since 2016
Trustpilot2.6/5, 56 reviews, 25 one-star, 37 in the last 12 months, replied to 10% of negatives3.5/5, 104 reviews, 10 one-star, 4 in the last 12 months, replied to 50% of negatives
Our rating4.5/109/10
Every row read on 7 October 2026, Trustpilot re-read on 14 October 2026, from blockchain-ads.com, its help centre, coinzilla.com and the two Trustpilot profiles.

Which door for which campaign

Choose Coinzilla if the brief is placement: a token, exchange, wallet or prediction market that wants to be seen on the crypto sites its users already read, a budget anywhere from EUR 100 to the low thousands a month, and a company that can pass an identity check. It is also the first call for licensed iGaming brands, which it serves under the same compliance review; our iGaming networks guide covers that lane. Start at the minimum, because it will not come back, and read our Cointraffic vs Coinzilla and A-ADS vs Coinzilla head-to-heads if the question is which placement network rather than whether.

Choose Blockchain-Ads only if the brief is the audience and the budget is already there: a regulated product that converts from people who hold specific assets, a monthly spend in the tens of thousands where $10,000 is a tranche rather than a year, and a team that will define on-chain conversion events before funding, watch the first $3,500 as the refund-request gate, and read all twenty-two sections before the qualification call. Ask on that call for the managed-service funding figure in writing, because the help centre and the agreement disagree, and ask which dispute clause you are signing, because the one on the site has changed twice since September. If any of that sounds like more diligence than the campaign is worth, it is, and Coinzilla is the answer after all.

The bottom line

Coinzilla sells a thing you can see at a price you can check under a contract that has stood still for three years. Blockchain-Ads sells a thing you cannot see at a price it has only just begun to publish, under a contract rewritten three times in a month, and asks a hundred times more for the privilege. The wallet graph may be everything its pages say it is; the terms are written so that you will pay $10,000 to find out and have no recourse if it is not. That is why one scores 9/10 and the other 4.5/10 in our ranking, and why the gap is about verifiability, not ambition.

Blockchain-Ads vs Coinzilla FAQ

Is Blockchain-Ads or Coinzilla better for crypto advertising?

Coinzilla for almost everyone: EUR 100 to start, named crypto sites, a bid you control and terms unchanged since 2023. Blockchain-Ads only for a regulated advertiser with a five-figure monthly budget that needs wallet-level audiences and can absorb a $10,000 deposit guarded by a discretionary refund clause. We rate Coinzilla 9/10 and Blockchain-Ads 4.5/10.

What is the minimum deposit at Blockchain-Ads vs Coinzilla?

Blockchain-Ads: $10,000, which its help centre says applies to every deposit including top-ups (its funding page calls it one-time), plus $360 a day per campaign; managed service requires $30,000 a month and, under the agreement in force on 7 October 2026, USD 30,000 of initial funding. Coinzilla: EUR 100 paid in advance, plus EUR 50 a day per campaign, by wire, crypto through CoinGate or card through Stripe.

Do Blockchain-Ads and Coinzilla refund unused balances?

Coinzilla does not, except when it terminates the contract through no fault of yours; the terms say so in capitals, and an idle account is deleted with its balance after a year. Blockchain-Ads lets you request a discretionary refund only after 35% of all credit bought has been consumed, states that the request creates no right to one, deducts delivered media, fees and supply commitments from anything approved, and expires untouched credit after twelve idle months.

Does Coinzilla offer wallet targeting like Blockchain-Ads?

No. Coinzilla targets by country, device, website and ad zone, with a retargeting product; its inventory is the targeting. Blockchain-Ads builds audiences from on-chain activity it says it tracks across 82 blockchains and 11 million active wallets, and accepts custom lists by smart-contract or wallet address, matched to browsers probabilistically and verifiable only through its own conversion tracking.

Can publishers join Blockchain-Ads or Coinzilla?

Coinzilla, yes: crypto-related sites only, reviewed by hand against an unpublished traffic threshold, paid from EUR 50 weekly or monthly in BTC, ETH, USDC or by wire. Blockchain-Ads, no: it owns no inventory, publishes no publisher terms or payouts, its /publishers address returns not found, and its FAQ offers only a “strict selection and qualification process” through the contact page.