Comparison

DnsQuery vs FreeCrew

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

Head to head
About

DnsQuery

Features
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DnsQuery โ€” inspect DNS, verify DNSSEC DnsQuery is a wire-level DNS tool for engineers, sysadmins, and curious network nerds. Send a query to any resolver โ€” public, private, or your router โ€” and see the full response: parsed answer sections, every flag, the raw bytes annotated by region, and an independent, end-to-end DNSSEC chain-of-trust walk that doesn't just take the resolver's word for it. Query and inspect - Hand-picked list of public resolvers (Cloudflare, Google, Quad9, OpenDNS, AdGuard) with IPv4 and IPv6 addresses, plus your configured system resolver on macOS, plus custom resolvers you define yourself. - Send over UDP, TCP, DNS-over-TLS (DoT), DNS-over-HTTPS (DoH), or DNS-over-QUIC (DoQ). - Control the individual query flags that matter: Recursion Desired (RD), DNSSEC OK (DO) for RRSIG / DNSKEY / NSEC records, and Checking Disabled (CD) to bypass upstream validation. - 18+ record types including A, AAAA, MX, SRV, CAA, SSHFP, TLSA, DNSKEY, DS, RRSIG, NSEC, NSEC3. - Color-coded hex dump of query and response bytes with a legend โ€” see at a glance where the header, labels, compression pointers, and RDATA live. - Extended DNS Errors (RFC 8914) surfaced prominently when the upstream resolver tells you why something failed. Validate DNSSEC yourself - Full chain-of-trust walk from the IANA root trust anchors (KSK-2017 and KSK-2024) down to your answer, step by step. Every DS match, DNSKEY verification, and RRSIG check is shown with the key tag and algorithm. - Handles positive answers, NXDOMAIN and NODATA via full RFC 5155 NSEC3 three-proofs (closest encloser + next closer + wildcard), CNAME chains, insecure delegations, and NSEC3 opt-out. - Enforces RFC 6840 algorithm-downgrade protection and RFC 5011 key-revoke rules โ€” won't silently accept a stripped-stronger-algo response. - Split-horizon aware: when a zone publishes both internal and external KSKs with two DS records in the parent, validation succeeds for whichever view your chosen resolver sees, helping you troubleshoot internal zones without fighting the tool. - Clear verdict at the top: Secure, Insecure (unsigned delegation), Bogus (with the specific zone and failure reason), or Indeterminate. Sync and share - Query history and your custom resolver list sync across your Mac, iPad, and iPhone through iCloud Key-Value storage (signed into the same Apple ID). No servers, no accounts, no tracking. Who it's for If you know what an RRSIG is, you're the target audience. Use it to debug a DNSSEC rollover that went sideways, verify a new resolver's behaviour, inspect what a malicious DNS rebinding might look like, or just satisfy curiosity about what actually travels over port 53. Privacy No analytics, no telemetry, no account required. All queries go directly from your device to the resolver you chose. History is stored in your own iCloud, not ours. From the maker of DnsEditor

About

FreeCrew

Features
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FreeCrew is a hobby app for fans of street art and urban visual culture. It's a place to notice, photograph and document the graffiti, murals, stickers and posters you come across in the city โ€” and to appreciate them as design and culture. This is an app for observers and enthusiasts. FreeCrew is NOT a tool for vandalism. It does not help you tag, paint or damage property, and it is not for planning illegal graffiti. It's about looking, collecting and sharing โ€” legally and respectfully. WHAT YOU CAN DO โ€ข Spot map โ€” save the graffiti, walls, legal spots, murals, posters and stickers you find on a global map, with a photo, type, style and district. Filter and search your own collection. โ€ข Journal of finds โ€” keep a personal log of what you spotted, with photos and tags, linked to a spot. โ€ข Community โ€” scene news, local artists, events, markets and sketch meetups in one feed. โ€ข Arsenal โ€” a simple personal inventory of supplies for your own legal art projects: pens, markers and stickers, with colour and quantity. โ€ข Challenges & art walks โ€” light, fun tasks and curated routes to discover public and legal art around the city. โ€ข Progress & achievements โ€” earn XP, build streaks, climb crew ranks and unlock badges for what you find. BUILT TO RESPECT YOU AND THE CITY FreeCrew celebrates legal, permitted and public street art only. Please respect property and follow your local laws. The app works fully offline โ€” your finds, journal, inventory and photos stay on your device. No cloud backend, no third-party trackers, no cross-app ads. Sign in with Apple or create a local account. FreeCrew is for watching the city speak in graphics โ€” as a hobby, legally, and as a community. Not for vandalism. Your spots, journal and photos are stored locally on your device. Privacy Policy: https://free-crew.com/privacy.html Support: https://free-crew.com/support.html

Screenshots

DnsQuery4 screens
FreeCrew4 screens

Verdict

The call

The clearest difference is update cadence: DnsQuery at fortnightly against FreeCrew's monthly. FreeCrew's advantage is iOS requirement (14.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

DnsQuery ships an update fortnightly, FreeCrew monthly. The most recent releases landed on October 3, 2026 and October 16, 2026 respectively.

Scorecard2 real differences ยท 4 level
DnsQuery versus FreeCrew: the parameters behind the verdict, then further details
ParameterDnsQueryFreeCrew
PriceFreeFree
Update frequencyFortnightly โ€” betterMonthly
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, MaciPhone, iPad, iPod
Requires iOS17.014.0 โ€” better
Further details โ€” not scored
Size6 MB24 MB
Age rating4+4+
DeveloperIvar HostengHelena Poder

In-app purchases

None

DnsQuery

No in-app purchases

None

FreeCrew

No in-app purchases

Questions

Is DnsQuery free?
DnsQuery is free to download, with no in-app purchases.
Is FreeCrew free?
FreeCrew is free to download, with no in-app purchases.
Do DnsQuery or FreeCrew have ads?
Neither DnsQuery nor FreeCrew shows ads.
Which is updated more often, DnsQuery or FreeCrew?
DnsQuery ships an update fortnightly, and FreeCrew monthly. Most recently, DnsQuery was updated on October 3, 2026 and FreeCrew on October 16, 2026.

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