Comparison

Military Time Clock Converter vs Cairn

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

Head to head
About

Military Time Clock Converter

Easily convert between military time (24-hour format) and the standard 12-hour format. Save your conversions, access a quick reference guide, and enjoy a clean interface. Ideal for professionals and anyone needing accurate time conversions.

Highlights
  • Instant time conversion
  • Save unlimited conversions
  • 24-hour reference guide
  • Modern, clean interface
  • Dark mode support
  • Widget functionality
Features
Read full description

Convert, calculate, and master 24-hour military time in seconds. Military Time Converter is the ultimate tactical utility built for pilots, military personnel, nurses, EMTs, dispatchers, and shift workers who demand precision. Whether you need instant 12h to 24h conversions, cross-midnight shift duration math, or the complete NATO phonetic radio alphabet, this app delivers a clean, tactile, and zero-distraction experience. KEY FEATURES: INSTANT BIDIRECTIONAL CONVERTER - Rapid 12-Hour (AM/PM) to 24-Hour Military Time conversion. - One-tap Zulu / UTC / GMT synchronization with real-time offset. - Quick shift presets: +30m, +1h, +8h, and +12h for rapid schedule lookups. - Tactile dual-dial picker designed for swift one-handed input. TIME DIFFERENCE AND SHIFT CALCULATOR - Calculate exact elapsed duty hours and minutes between any two timestamps. - Automatic Decimal Hours output (e.g., 8h 45m = 8.75 hrs) for fast timesheets, work logs, and pilot logbooks. - Effortlessly add or subtract hours and minutes with automatic cross-midnight day rollover indicators (+1 Next Day / -1 Prev Day). MILITARY VOICE READOUT AND AUDIO GUIDE - Hear authentic military time pronunciation aloud (e.g., "Zero Seven Hundred Hours", "Twenty-One Thirty"). - Master official military terminology, pronunciation, and radio discipline. NATO PHONETIC ALPHABET AND CALLSIGN TRANSLATOR - Full A-Z NATO phonetic alphabet reference (Alpha, Bravo, Charlie... Zulu) and military numeral pronunciations (Wun, Too, Tree, Fow-er, Fife, Niner). - Interactive Callsign Converter: type any flight number, tail number, or callsign to instantly view and hear the full radio transmission. - Integrated Morse code dots and dashes visualizer. 24-HOUR QUICK-REFERENCE MATRIX - Instant side-by-side conversion chart from 0000 to 2359. - Quickly cross-reference military hours without manual calculations. SAVED SHIFTS AND DUTY LOGBOOK - Bookmark frequently used operational shifts, flight blocks, and duty times for instant recall. TACTICAL COCKPIT THEMES - Night Vision Red (OLED): Preserves night vision in dark cockpits and tactical environments. - Tactical Amber and Emerald Green: High-contrast military instrumentation aesthetics. PERFECT FOR: - Military Personnel, US Armed Forces, Veterans and Cadets - Aviation Pilots, Air Traffic Controllers, Flight Attendants and Dispatchers - Healthcare Professionals, ER Nurses, Doctors and Hospital Staff - First Responders, Police Officers, Firefighters and EMTs - Shift Workers and Security Officers tracking 24-hour schedules Accurate. Tactical. Built for duty. Download Military Time Converter today and master 24-hour time with confidence! Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://sites.google.com/view/militaryclock/privacy-policy

About

Cairn

Features
Read full description

Cairn is a text export tool that turns a text conversation into a clean, printable record you can keep or hand to someone who needs it. It works from screenshots of the chat that you add, then rebuilds the conversation in order so you can export text messages to PDF & CSV in a few taps. - Add screenshots of a conversation and let the app read the bubbles and sort them by time - See the conversation rebuilt in order, with sender labels and any gaps flagged, never silently reordered - Save messages to PDF & CSV: a crisp PDF with selectable text you can print text messages from, or a CSV with date, time, sender, and message - Reactions and inline images are carried into the export - Everything happens on your device, and your screenshots never leave your phone iOS does not let apps read your SMS or Messages history directly, so Cairn works from the screenshots you provide, turning them into a fast, accurate backup or recovery record you can print or file away. Privacy Policy: https://docs.google.com/document/d/e/2PACX-1vTDX9pxPOlUJl_skVUHPi99mAw0y2B2BYd_v1mJkoF3xW3rlOcW5KlYd4t93MMbbGhctSTnBTy7d_l6/pub Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Military Time Clock Converter4 screens
Cairn4 screens

Verdict

The call

The clearest difference is iOS requirement: Military Time Clock Converter at 18.2 against Cairn's 26.0. On price, ads, in-app purchases 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

Both are free to download. Military Time Clock Converter sells 3 in-app purchases, starting at $1.99 per 7 days and Cairn sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Scorecard1 real difference · 8 level
Military Time Clock Converter versus Cairn: the parameters behind the verdict, then further details
ParameterMilitary Time Clock ConverterCairn
PriceFreeFree
Rating3.0 (2 ratings) — better—
Number of ratings2 — better—
Update frequencyEvery 11 days—
AdsNoNo
In-app purchasesYesYes
MonetizationFreemium—
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.2 — better26.0
Further details — not scored
Size28 MB8 MB
Age rating4+4+
DeveloperMATEUSZ MIKULSKIAndrii Bashta

In-app purchases

3 purchases

Military Time Clock Converter

Subscriptions2
  • Unlimited access for 1 week3 Days trial$1.997 Days
  • Unlimited access for 1 year3 Days trial$9.991 Year
One-time1
  • Lifetime access to full version$14.99
1 purchases

Cairn

One-time1
  • Threadkeeper Lifetime$9.99

Questions

Is Military Time Clock Converter free?
Military Time Clock Converter is free to download, with in-app purchases available.
Is Cairn free?
Cairn is free to download, with in-app purchases available.
Do Military Time Clock Converter or Cairn have ads?
Neither Military Time Clock Converter nor Cairn shows ads.

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