Comparison

TimeCalc vs CrewZZZy

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

Head to head
About

TimeCalc

This app accurately calculates time-related tasks, including working hours, durations between dates, and age. It offers a user-friendly interface with dark mode and offline functionality, allowing for easy time management for work and personal life.

Highlights
  • Calculate working hours
  • Calculate time between two points
  • Add and subtract time
  • Calculate age
  • Convert time units
  • Export calculations to PDF
Features
Read full description

TimeCalc is a powerful yet simple time calculator for everyday use — add and subtract hours, track work durations, calculate future dates, and find exact age in seconds. TIME CALCULATOR Add, subtract multiple time values in sequence. Instant results, calculation history saved. Examples: 2h 35m + 3h 45m = 6h 20m 12h 20m − 4.5h = 7h 50m 4h 52m × 3 = 14h 36m 1h ÷ 20m = 3 Convert between time units: 456m = 7h 36m = 7.6h TIME BETWEEN (DURATION) Enter any start and end time to calculate the exact duration. Organize into separate categories. Export PDF reports (Premium). Examples: 11:20 AM → 12:40 PM = 1h 20m 01:30 AM → 02:30 PM = 13h Today 02:00 → Tomorrow 02:30 = 24h 30m DATE CALCULATOR (ADD & SUBTRACT) From any starting date, add or subtract years/months/weeks/days/hours/minutes to get the resulting date. Calendar-accurate arithmetic — adding 1 month to Jan 31 gives the correct last day of February. Example: Today 17:32 + (1d 2h) = Tomorrow 19:32 AGE CALCULATOR Calculate exact age in years, months, and days from a birth date. Save multiple birthdays to track. --- KEY FEATURES • Automatic light & dark mode • Supports both 12h and 24h formats • Multi-language support • No account, no cloud — 100% local data • Privacy-first — your data never leaves your device --- PREMIUM Upgrade to Premium to unlock the full experience: • Remove all ads • Unlimited Time Between categories • Export reports to PDF • Advanced time unit customization Subscription plans: Monthly, Quarterly, Yearly, or Lifetime. --- Perfect for tracking work hours, calculating durations, and managing time efficiently. Thank you for using TimeCalc! [Terms] https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

CrewZZZy

Features
Read full description

Your flight. Your rest. Your plan. CrewZZZy makes crew-rest planning simple. Choose Flight Attendants or Pilots, enter your route and timing window, and see a clear plan. Keep track of what is happening now, what comes next, and who rests when—all in a calm, beautifully designed interface. A SIMPLE FLOW • Choose your calculator. The app remembers your preference. • Find your departure and destination airports by code or city. • Enter your timing window and create your rest plan. • Assign your crew, follow the countdowns and share the plan. FOR FLIGHT ATTENDANTS Arrange service and rest periods, allow for buffers and assign crew to each rest block. Switch between departure and arrival station time. Swap airports for a return leg and reverse your rest groups when needed. FOR PILOTS Divide a rest window into 2–4 sequential periods with shared or individual handovers. Use departure time, arrival time or UTC / Zulu without changing your phone's time zone. Overnight windows are supported. CLEAR AT A GLANCE Follow active and upcoming periods with live countdowns. Use optional phase chimes and Live Activities on supported Lock Screen and Dynamic Island displays. Enter crew names manually or scan up to three manifest images. Share a summary or an image of your plan. BEAUTIFUL, PERSONAL AND FAMILIAR Choose from 28 interface languages, including French, German, Spanish, Arabic, Mandarin, Cantonese and Brazilian Portuguese. Explore destination skylines and landmarks, with distinct pictures for airports serving the same city. Optional festive accents follow regional holiday dates; in English, they follow your destination country and local date. Turn destination photos or festive styling off whenever you prefer. Photo credits, sources and licenses are available through the discreet information button. Core planning does not require an app account. Online destination-photo requests use city and country labels, not flight times or crew names. TRY IT, THEN CHOOSE PRO Start with 15 free calculations per device, shared across both calculators. This allowance does not renew. Reopening your current authorized plan, changing its display time zone or editing crew assignments does not use another calculation. Annual Pro offers unlimited calculations while subscribed. The price is shown before purchase. Restore Purchases is available. An eligible new iCloud user who joins using your referral code within their first 7 days can earn you 5 additional calculations. One referral per new user; both users need iCloud. The promotion runs through October 4, 2027. Sharing alone does not earn a bonus. Subscriptions renew automatically unless cancelled at least 24 hours before the current period ends. Manage or cancel in your Apple Account settings. CrewZZZy divides the timing window you provide. It does not validate duty limits, crew qualifications or airline operating rules. Follow your operating procedures when choosing rest windows and coverage. Privacy Policy: https://sites.google.com/view/crew-rest-privacy-policy/home Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

TimeCalc4 screens
CrewZZZy4 screens

Verdict

The call

The clearest difference is ads: CrewZZZy at none against TimeCalc's shown. CrewZZZy also leads on update cadence (weekly vs every 5 weeks). On price, in-app purchases, device support and iOS requirement 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. TimeCalc sells 4 in-app purchases, starting at $0.99 per month and CrewZZZy sells 1 in-app purchase, starting at $8.99 per year. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

TimeCalc ships an update every 5 weeks, CrewZZZy weekly. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

Scorecard2 real differences · 8 level
TimeCalc versus CrewZZZy: the parameters behind the verdict, then further details
ParameterTimeCalcCrewZZZy
PriceFreeFree
Rating4.5 (90 ratings) — better—
Positive reviews78.8% of reviews—
Number of ratings90 — better—
Update frequencyEvery 5 weeksWeekly — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.1 — better16.1
Further details — not scored
Size37 MB206 MB
Age rating4+4+
DeveloperHa Thanhigor kounti

In-app purchases

4 purchases

TimeCalc

Subscriptions3
  • Premium subscription 1 month3 Days trial$0.991 Month
  • Premium subscription 3 month3 Days trial$1.993 Months
  • Premium subscription 1 year3 Days trial$4.991 Year
One-time1
  • Premium$14.99
1 purchases

CrewZZZy

Subscriptions1
  • Crew Rest Pro Annual$8.991 Year

Questions

Is TimeCalc free?
TimeCalc is free to download, with in-app purchases available.
Is CrewZZZy free?
CrewZZZy is free to download, with in-app purchases available.
Do TimeCalc or CrewZZZy have ads?
TimeCalc shows ads; CrewZZZy does not.
Which is updated more often, TimeCalc or CrewZZZy?
TimeCalc ships an update every 5 weeks, and CrewZZZy weekly. Most recently, TimeCalc was updated on October 24, 2026 and CrewZZZy on October 25, 2026.

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