Comparison

Calculator vs Domain Command

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

Head to head
About

Calculator

This app offers a comprehensive scientific calculator with multiple modes, including algebraic, scientific, conversions, and logic calculations. It features a user-friendly design with large buttons and remembers your progress if interrupted.

Highlights
  • Algebraic entry
  • Scientific calculations
  • Unit conversions (length, area, volume, etc.)
  • Logic calculator (binary, octal, decimal, hex)
  • 10 memory registers
  • Wide number range support
Features
Read full description

Here's a full-featured scientific calculator for your iPhone or iPod touch. It's really six calculators in one, with new button sets exposed by a tap on the tab bar. Features are important, but it's the little things that count, right? Little things like a design that looks like it belongs on your iPhone; big, easy to press buttons; a delete key in case you hit the wrong one; and picking up right where you left off if you are interrupted by a phone call--even in the middle of entering a number. Features: 1. Algebraic entry 2. Scientific calculations 3. Conversions for - Length - Area - Volume - Temperature - Mass - Speed 4. Logic calculator supporting base 2, 8, 10 and 16 5. 10 memory registers 6. Numbers range from about 1e-313 to 1e308 7. Displays 14 significant digits

About

Domain Command

Features
Read full description

You have domains. They expire. This app makes sure you know before they do. Track your domains and SSL certificates in one place. Get notified before anything expires. No account, no server, no tracking. Buy it once, own it forever. DOMAIN & SSL MONITORING, FULLY ON YOUR DEVICE Domain Command performs WHOIS and RDAP lookups directly from your iPhone — no middleman server, no cloud processing, no data collection. Your domain portfolio stays on your device and in your iCloud, period. WHY DOMAIN COMMAND - Track domain expiry dates, registrar info, and nameservers via WHOIS/RDAP - Monitor SSL/TLS certificates — issuer, validity dates, and status at a glance - Get local notifications before anything expires — 30, 14, or 7 days out - All lookups happen on-device using public WHOIS and RDAP protocols - Works offline — cached data and pre-scheduled notifications need no internet - iCloud sync keeps your domains in sync across devices — still no server needed ONE-TIME PURCHASE. NO SUBSCRIPTION. EVER. Most domain trackers charge you monthly to run a cron job on their server. Domain Command has no server. WHOIS is a public protocol — your device queries it directly. That means zero recurring costs for me, and zero subscription for you. Pay once, use it forever. Free: track up to 3 domains with all features. Unlock the full app for unlimited domains, widgets, iCloud sync, CSV import, and per-domain notification settings. BUILT FOR DEVELOPERS & SYSADMINS - Information-dense UI inspired by mission control status boards - Domain names and expiry data in monospaced type — because they are data - Color-coded urgency: green (nominal), amber (advisory), red (critical) - Pull-to-refresh runs a full WHOIS + SSL check on all your domains - Batch add: paste multiple domains at once - CSV import and export for your records - Home screen widgets show your most urgent renewals at a glance NOTIFICATIONS THAT JUST WORK Notifications are scheduled locally via iOS. The system owns them once set — they fire even if the app is killed. Every time you open the app, it refreshes expiry dates and reschedules all reminders. Simple, reliable, no server ping required. PRIVACY BY ARCHITECTURE - No analytics, no tracking, no third-party SDKs - No accounts, no sign-ups, no email collection - The only network calls are WHOIS/RDAP lookups to public registry servers and optional SSL checks - One optional, opt-in feature: if the app can't parse a WHOIS response, you can choose to send the public registry record to the developer to improve parsing. That's it. No personal data, ever. - iCloud sync is Apple's infrastructure — the developer never sees your data SMART WHOIS PARSING Domain Command uses RDAP (structured JSON) where available, and falls back to WHOIS with format-specific parsers for major registrars. If a format isn't recognized, you can enter the expiry date manually and optionally report the format so it gets supported in the next update. PRIVACY POLICY: https://tomaskafka.com/domaincommand/privacy.html

Screenshots

Calculator4 screens
Domain Command3 screens

Verdict

The call

The clearest difference is price: Domain Command at Free against Calculator's $1.99. Domain Command also leads on update cadence (weekly vs every 11 months). Calculator's advantage is in-app purchases (none vs 1) and iOS requirement (15.6 vs 26.0). On ads and device support there is nothing between them.

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

CostPrice · In-app purchases · Ads · Monetization

Domain Command is free to download; Calculator costs $1.99 up front. Domain Command sells 1 one-off in-app purchase. Calculator asks for nothing beyond the download.

UpkeepUpdate frequency

Calculator ships an update every 11 months, Domain Command weekly. The most recent releases landed on October 23, 2026 and October 8, 2026 respectively.

Scorecard4 real differences · 6 level
Calculator versus Domain Command: the parameters behind the verdict, then further details
ParameterCalculatorDomain Command
Price$1.99Free — better
Rating4.0 (1 ratings) — better—
Positive reviews60.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 11 monthsWeekly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaid—
DevicesiPhone, iPodiPhone, iPad, Mac — better
Requires iOS15.6 — better26.0
Further details — not scored
Size5 MB8 MB
Age rating4+4+
DeveloperByte Works, Inc.Tomas Kafka

In-app purchases

None

Calculator

No in-app purchases

1 purchases

Domain Command

One-time1
  • Lifetime unlock$7.99

Questions

Is Calculator free?
Calculator costs $1.99, with no in-app purchases.
Is Domain Command free?
Domain Command is free to download, with in-app purchases available.
Do Calculator or Domain Command have ads?
Neither Calculator nor Domain Command shows ads.
Which is updated more often, Calculator or Domain Command?
Calculator ships an update every 11 months, and Domain Command weekly. Most recently, Calculator was updated on October 23, 2026 and Domain Command on October 8, 2026.

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