ChronoCalc vs SimpleCalc.
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ChronoCalc
This app simplifies time calculations, offering features like addition, subtraction, multiplication, and division of time intervals. It supports various time formats, millisecond precision, and provides an activity timer for elapsed time tracking.
- Time addition, subtraction, multiplication, division
- Millisecond precision
- AM/PM and 24-hour time formats
- Intervals in H:M:S:MS or decimals
- Activity timer for elapsed time
- Convert between hours, minutes, seconds, milliseconds
- Multiple color schemes
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ChronoCalc is designed to streamline all your time calculation needs. - If I start work at 8:40, and end at 4:25, how much time has passed? - What time will it be in 5 and a half hours? What time was it 5 and a half hours ago? - If I watch 8 episodes lasting 43 minutes each, how much total time is that? - How many hours are 143 minutes? Features: - Addition, Subtraction, Multiplication, and Division - Subtract From operator lets you enter start times before end times - perfect for long lists of calculations - Millisecond precision - AM, PM, and Military/24h time - Intervals can be entered as H:M:S:MS or as decimals - Activity Timer makes it easy to get the elapsed time between the start and end of an activity - Easily convert between hours, minutes, seconds, and milliseconds - 6 different color schemes to choose from
SimpleCalc.
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Just a simple calculator. Use this calculator as your every day simple calculator with no ads, while having one of our beautiful tailor-made themes. Enjoy using it, and please put a nice review if you like it. Thanks! @Himnerom
Screenshots
Verdict
The clearest difference is iOS requirement: ChronoCalc at 8.0 against SimpleCalc.'s 15.0. On price, update cadence, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
ChronoCalc ships an update every 12 months, SimpleCalc. every 7 months. The most recent releases landed on September 25, 2026 and October 2, 2026 respectively.
| Parameter | ChronoCalc | SimpleCalc. |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 12 months | Every 7 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 8.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 237 MB | 16 MB |
| Age rating | 4+ | 4+ |
| Developer | Augusta University | Romain Rousseau |
In-app purchases
ChronoCalc
No in-app purchases
SimpleCalc.
No in-app purchases
Questions
Is ChronoCalc free?
Is SimpleCalc. free?
Do ChronoCalc or SimpleCalc. have ads?
Which is updated more often, ChronoCalc or SimpleCalc.?
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