Comparison

DNS Sinkhole vs Crisp

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

DNS Sinkhole

Features
Read full description

Choose encrypted DNS without replacing your VPN. Sinkhole helps you understand, select, and configure a trusted DNS-over-HTTPS provider on iPhone and iPad. It adds an encrypted DNS configuration for the provider you choose, using the system API iOS provides for this. SIMPLE GUIDED SETUP Choose your goal — privacy and security, family protection, or advanced custom DNS — then follow clear installation steps designed for everyone. CURATED PROVIDERS Compare privacy and security-focused options from established public DNS providers. Depending on your selection, provider-side filtering may cover known malware, phishing, trackers, ads, or adult content. ADVANCED MODE Use a trusted custom HTTPS DNS endpoint from a service you control or configure, including compatible self-hosted resolvers. HONEST STATUS Sinkhole reads its own state from iOS: whether a configuration exists, and whether iOS has it active. It also sends a single DNS test request to confirm the selected endpoint is reachable, and keeps that separate from activation. PRIVACY BY DESIGN • No Sinkhole account • No LorisLabs DNS server • No VPN tunnel and no VPN configuration • No advertising or analytics SDK • No DNS query or browsing history received by Sinkhole Once active, DNS requests go directly from your device to the provider you selected. That provider's privacy policy and filtering behavior apply. Sinkhole cannot see or fabricate per-domain statistics. IMPORTANT iOS asks for your approval before Sinkhole can add a DNS configuration, and only you can select it in Settings > General > VPN & Device Management > DNS. You can switch away or remove it there at any time, without the app. A VPN may choose to override system DNS settings; behavior depends on that VPN.

About

Crisp

Features
Read full description

Crisp makes Safari fast, clean, and private — and you only pay once. Ads, trackers, cookie banners, and pop-ups slow pages down and follow you around the web. Crisp stops them right in Safari, on your device, with a single tap to turn on. No subscription. No account. No data leaving your phone. WHY CRISP • Pay once — no subscriptions, no renewals, ever • Blazing-fast pages with the clutter stripped out • Truly private: everything runs on-device, we collect nothing • Simple to use, with real control when you want it WHAT CRISP BLOCKS • Banner, video & display ads • Trackers and cross-site analytics • Cookie consent banners and nags • Pop-ups and interstitials • Crypto-mining scripts • Newsletter and app-install nags CRISP EXTRA Turn on advanced rules to hide leftover clutter, strip scripts, and beat anti-ad-block walls — included, not an upsell. BLOCK IN ANY LANGUAGE Add region-specific rules for 13 languages so ads are blocked on non-English sites too. WHY ONE-TIME PRICING Ad blockers shouldn't cost you every month. Crisp is a single purchase that keeps working — blocklists refresh automatically about twice a week in the background, at no extra cost. PRIVATE BY DESIGN Safari applies Crisp's rules itself. Crisp is never told which pages you visit, and we have no analytics, no ad SDKs, and no third-party trackers. Your settings stay on your device. HOW IT WORKS 1. Install Crisp 2. Enable it under Settings → Apps → Safari → Extensions 3. Browse — pages load clean and fast QUESTIONS? Crisp is made by an independent developer. Reach out and a human will reply.

Screenshots

DNS Sinkhole4 screens
Crisp4 screens

Verdict

The call

The clearest difference is price: DNS Sinkhole at Free against Crisp's $2.99. On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

DNS Sinkhole is free to download; Crisp costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Scorecard1 real difference Ā· 4 level
DNS Sinkhole versus Crisp: the parameters behind the verdict, then further details
ParameterDNS SinkholeCrisp
PriceFree — better$2.99
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.017.0
Further details — not scored
Size4 MB4 MB
Age rating4+4+
DeveloperChristine MartinVijhay Kumar

In-app purchases

None

DNS Sinkhole

No in-app purchases

None

Crisp

No in-app purchases

Questions

Is DNS Sinkhole free?
DNS Sinkhole is free to download, with no in-app purchases.
Is Crisp free?
Crisp costs $2.99, with no in-app purchases.
Do DNS Sinkhole or Crisp have ads?
Neither DNS Sinkhole nor Crisp shows ads.

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