Comparison

Crisp vs DNS Survey

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

Head to head
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.

About

DNS Survey

Features
Read full description

DNS Survey reads a domain's public DNS records and explains, in plain English, how that domain handles email. Type a domain and you get: • A plain-English summary — who hosts the mailboxes, whether sender authorisation (SPF) is published, whether an anti-spoofing policy (DMARC) is in place and how strict it is, and whether outgoing mail is signed (DKIM). • Third-party senders — the outside services allowed to send email as that domain, with the evidence for each. Shared sending platforms are labelled separately, because they prove mail is being sent without revealing which application sends it. • Vendors by category — products the domain shows evidence of using, from mailbox hosting and CRM to payments, security and developer tools, each shown with the record that identified it. • The raw records — SPF, DMARC, MX, NS, CNAME, A, TXT and DKIM, including SPF lookup-limit counting and DMARC policy warnings. Touch and hold to copy any value. Everything comes from public DNS. The app never connects to mail servers, sends email, or asks for credentials. Nothing is stored. No history, no cache, no account — a result exists only while you are looking at it. Detection is best-effort: a match on a verification token means the domain was verified with that service at some point, not that it is in use today.

Screenshots

Crisp4 screens
DNS Survey3 screens

Verdict

The call

The clearest difference is price: DNS Survey 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 Survey 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
Crisp versus DNS Survey: the parameters behind the verdict, then further details
ParameterCrispDNS Survey
Price$2.99Free — better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad — betteriPhone
Requires iOS17.017.0
Further details — not scored
Size4 MB1 MB
Age rating4+4+
DeveloperVijhay KumarSTEVEN EDWARD WHITTLE

In-app purchases

None

Crisp

No in-app purchases

None

DNS Survey

No in-app purchases

Questions

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

Other comparisons