ChronoCalc vs Timely
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
Timely
Perform arithmetic operations on time spans and numbers with this free utility. Supports addition, subtraction, multiplication, and division, including percentages and modulus. It can also function as a standard calculator.
- Time span arithmetic
- Addition, subtraction, multiplication, division
- Percentage and modulus calculations
- Standard calculator functionality
- Supports decimals and order of operations
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Timely allows you to perform arithmetic operations between time spans and numbers! Addition, subtract, multiplication and division are all supported - no ads and completely free. Timely displays time spans as Hour:Minutes:Seconds with support for decimals and order of operations (PEMDAS/BODMAS), it can also be used as a normal calculator. Some examples of what you can do with Timely. - What pace is required to complete a 12km race in 50 minutes? 50:00 ÷ 12 = 4:10 min/km - Adding up timesheets for work. 07:30:00 + 01:00:00 + 02:25:00 = 10:55:00 Support for percentage and modulus are provided by the '%' key. - Percentage calculation 10:00 + 5% = 10:30 - Modulus calculation 50:00:00 % 24:00:00 = 02:00:00 You can tap on the number display to send me feedback if you encounter issues or have feature requests. Enjoy!
Screenshots
Verdict
The clearest difference is rating: ChronoCalc at 5.0 against Timely's 2.5. ChronoCalc also leads on iOS requirement (8.0 vs 15.0). Timely's advantage is update cadence (monthly vs every 12 months). On price, review sentiment, ratings volume and ads 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 holds the better App Store score, 5.0 against 2.5. Both are backed by a comparable volume of ratings — 2 and 2 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
ChronoCalc ships an update every 12 months, Timely monthly. The most recent releases landed on October 24, 2026 and October 9, 2026 respectively.
| Parameter | ChronoCalc | Timely |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | 2.5 (2 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 2 | 2 |
| Update frequency | Every 12 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 8.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 237 MB | 42 MB |
| Age rating | 4+ | 4+ |
| Developer | Augusta University | Daniel Gatto |
Customer experience
ChronoCalc
Timely
In-app purchases
ChronoCalc
No in-app purchases
Timely
No in-app purchases
Questions
Is ChronoCalc free?
Is Timely free?
Which has better reviews, ChronoCalc or Timely?
Do ChronoCalc or Timely have ads?
Which is updated more often, ChronoCalc or Timely?
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