Comparison

Intervalition vs DNS Checker

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

Head to head
About

Intervalition

Features
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A highly configurable interval timer app! Features include: 1. "Active" Interval Timer Type - One interval is repeated every X seconds, for Y rounds, alerting the users both when the interval starts with a configurable alarm sound, as well as alerting the user when the interval is nearing an end! 2. "Active Inactive" Interval Type - Alternating configurable intervals! 3. "Active Inactive... Break" Interval Type - Alternating configurable intervals, with a customizable Break interval that occurs after x amount of other intervals

About

DNS Checker

Features
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DNS Checker: look up DNS, WHOIS, SSL, IP location, ports & propagation β€” all in one simple app. Built for developers, sysadmins, site owners, gamers, and anyone troubleshooting domains or servers. DNS LOOKUP β€’ A, AAAA, MX, TXT, NS, SOA, SRV & CAA records β€’ TTL, priority and full record details β€’ Copy any value with one tap β€’ Save lookups to History and reopen anytime WHOIS & DOMAIN β€’ Registrar, creation & expiry dates β€’ Name servers and DNSSEC status β€’ Domain availability check SSL CERTIFICATE β€’ Issuer, subject and validity dates β€’ Days until expiry β€’ Signature algorithm & serial number IP & NETWORK β€’ IP geolocation (city, country, ISP, ASN) β€’ Reverse DNS (IP β†’ hostname) β€’ HTTP response headers PORT CHECKER β€’ Check if a remote port is open or closed β€’ Scan common ports from the internet (fast batch scan) β€’ Common ports: HTTP, HTTPS, SSH, SMTP, MySQL, RDP, Minecraft & more β€’ Port History for past checks β€’ Useful for port forwarding and firewall testing WATCH DOMAINS β€’ Save domains you care about β€’ Detect DNS A-record changes β€’ Quick status: OK, SSL warning, or DNS changed SSL EXPIRY REMINDERS β€’ See which certificates expire soon β€’ Optional local reminders before expiry DNS PROPAGATION β€’ Compare A records across Google, Cloudflare & Quad9 β€’ Clear result: β€œAll servers agree” or β€œStill updating” PRO β€’ Ad-free experience (no banners or pop-ups) β€’ Instant PDF export of full DNS reports (All core tools are available free. Free users can export PDF by watching a short ad.) Perfect for: β€’ Checking DNS after a domain or hosting change β€’ Verifying SSL before a site goes live β€’ Testing port forwarding (game servers, remote access) β€’ Watching important domains for unexpected DNS changes No account required. Fast, clean, and designed for iPhone & iPad. Questions? contacttomujahid@gmail.com Privacy Policy: https://justclack.blogspot.com/p/privacy-policy.html Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Subscriptions (optional): β€’ Weekly, Monthly, or Yearly Premium β€’ Payment charged to your Apple ID β€’ Auto-renews unless cancelled at least 24 hours before the period ends β€’ Manage or cancel in App Store account settings

Screenshots

Intervalition3 screens
DNS Checker4 screens

Verdict

The call

The clearest difference is price: DNS Checker at Free against Intervalition's $0.99. Intervalition's advantage is in-app purchases (none vs 3) and ads (none vs shown). On update cadence, device support and iOS requirement there is nothing between them.

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

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

DNS Checker is free to download; Intervalition costs $0.99 up front. DNS Checker sells 3 in-app purchases, starting at $2.99 per 7 days. Intervalition asks for nothing beyond the download.

UpkeepUpdate frequency

Intervalition ships an update every 3 weeks, DNS Checker every 4 weeks. The most recent releases landed on October 8, 2026 and October 9, 2026 respectively.

Scorecard3 real differences Β· 3 level
Intervalition versus DNS Checker: the parameters behind the verdict, then further details
ParameterIntervalitionDNS Checker
Price$0.99Free β€” better
Update frequencyEvery 3 weeks β€” betterEvery 4 weeks
AdsNo β€” betterYes
In-app purchasesNo β€” betterYes
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.117.6 β€” better
Further details β€” not scored
Size69 MB13 MB
Age rating4+4+
DeveloperBrett OwersMuhammad Mujahid Khan

In-app purchases

None

Intervalition

No in-app purchases

3 purchases

DNS Checker

Subscriptions3
  • Weekly3 Days trial$2.997 Days
  • Monthly$4.991 Month
  • Yearly$29.991 Year

Questions

Is Intervalition free?
Intervalition costs $0.99, with no in-app purchases.
Is DNS Checker free?
DNS Checker is free to download, with in-app purchases available.
Do Intervalition or DNS Checker have ads?
DNS Checker shows ads; Intervalition does not.
Which is updated more often, Intervalition or DNS Checker?
Intervalition ships an update every 3 weeks, and DNS Checker every 4 weeks. Most recently, Intervalition was updated on October 8, 2026 and DNS Checker on October 9, 2026.

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