# Time Duration Calc vs Clock In Pro

The clearest difference is ads: Time Duration Calc at none against Clock In Pro's shown. Time Duration Calc also leads on iOS requirement (15 vs 26.2). Clock In Pro's advantage is update cadence (every 4 days vs every 3 weeks). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Time Duration Calc ships an update every 3 weeks, Clock In Pro every 4 days. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Time Duration Calc | Clock In Pro |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Every 4 days** |
| Size | 42 MB | 16 MB |
| Requires iOS | **15** | 26.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [WebbyGenius Infotech Private Limited](https://appshunter.io/developer/1718922727) | [Nocturnal Devs](https://appshunter.io/developer/1882556799) |

## What reviewers say

### Time Duration Calc

[App page](https://appshunter.io/ios/app/time-duration-calc-age-calc/id6748015355)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Clock In Pro

[App page](https://appshunter.io/ios/app/clock-in-pro/id6760953624)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Time Duration Calc free?

Time Duration Calc is free to download, with no in-app purchases.

### Is Clock In Pro free?

Clock In Pro is free to download, with no in-app purchases.

### Do Time Duration Calc or Clock In Pro have ads?

Clock In Pro shows ads; Time Duration Calc does not.

### Which is updated more often, Time Duration Calc or Clock In Pro?

Time Duration Calc ships an update every 3 weeks, and Clock In Pro every 4 days. Most recently, Time Duration Calc was updated on October 24, 2026 and Clock In Pro on October 28, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*