TimeCalc vs Time Duration/Add Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Calculate working hours
- Calculate time between two points
- Add and subtract time
- Calculate age
- Convert time units
- Export calculations to PDF
Read full descriptionHide 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/
Time Duration/Add Calculator
Easily calculate elapsed time between two points or determine an end time based on a start time and duration. It also converts time into various units like days, hours, minutes, and seconds.
- Calculate elapsed time from start and end times
- Calculate end time from start time and elapsed duration
- Display time between start and end dates/times
- Convert time into days, hours, minutes, and seconds
- Easily enter current time
- Calculate time before a given duration
Read full descriptionHide full description
It is an application that can easily calculate the elapsed time from the time and the time from the elapsed time. You can also display the time between the start date and time and the end date and time in terms of hours, minutes, seconds, etc. ・Calculate from start time and end time Enter the start time and end time to calculate the elapsed time. Elapsed time can be checked in terms of hours, minutes, and seconds, and the current time can be easily entered. ・Calculated from start time + elapsed time Calculate the end time with the start time and elapsed time. You can also ask for the time before the elapsed time. ・Calculate from the start date and time and the end date and time Enter a start date and time and an end date and time to calculate the elapsed time. Elapsed time can also be checked in terms of hours, minutes, and seconds. ・Calculated from start date and time + elapsed time Enter the start date and time and elapsed time to calculate the end date and time. ・Time conversion The entered time is displayed in day/hour/minute/second, converted to days, converted to hours, converted to minutes, or converted to seconds. You can also convert 1000 seconds into minutes and seconds, or convert hours into days.
Screenshots
Verdict
The clearest difference is review sentiment: TimeCalc at 79% against Time Duration/Add Calculator's 25%. TimeCalc also leads on rating (4.5 vs 1.0) and update cadence (every 5 weeks vs every 9 months). Time Duration/Add Calculator's advantage is in-app purchases (none vs 4) and iOS requirement (13.0 vs 15.1). On price, 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
Both are free to download. TimeCalc sells 4 in-app purchases, starting at $0.99 per month. Time Duration/Add Calculator asks for nothing beyond the download.
TimeCalc holds the better App Store score, 4.5 against 1.0. That said, the two scores are not equally well evidenced: TimeCalc has 91 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 79% of TimeCalc's written reviews are positive against 25% of Time Duration/Add Calculator's.
TimeCalc ships an update every 5 weeks, Time Duration/Add Calculator every 9 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.
| Parameter | TimeCalc | Time Duration/Add Calculator |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (91 ratings) — better | 1.0 (1 ratings) |
| Positive reviews | 78.8% of reviews — better | 25.0% of reviews |
| Number of ratings | 91 — better | 1 |
| Update frequency | Every 5 weeks — better | Every 9 months |
| Ads | Yes | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Ad-supported — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.1 | 13.0 — better |
| Further details — not scored | ||
| Size | 37 MB | 17 MB |
| Age rating | 4+ | 4+ |
| Developer | Ha Thanh | Kouji Yamauchi |
Customer experience
TimeCalc
Time Duration/Add Calculator
In-app purchases
TimeCalc
- 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
- Premium$14.99
Time Duration/Add Calculator
No in-app purchases
Questions
Is TimeCalc free?
Is Time Duration/Add Calculator free?
Which has better reviews, TimeCalc or Time Duration/Add Calculator?
Do TimeCalc or Time Duration/Add Calculator have ads?
Which is updated more often, TimeCalc or Time Duration/Add Calculator?
Other comparisons















