# Call By Color vs OnTime Clock

The clearest difference is update cadence: Call By Color at every 4 weeks against OnTime Clock's every 2 months. Call By Color also leads on iOS requirement (7.0 vs 26.0). On price, ads, 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.

Call By Color ships an update every 4 weeks, OnTime Clock every 2 months. The most recent releases landed on October 26, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Call By Color | OnTime Clock |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Every 2 months |
| Size | 2 MB | 18 MB |
| Requires iOS | **7.0** | 26.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Andreas Vogel](https://appshunter.io/developer/889323201) | [文巧 刘](https://appshunter.io/developer/1870071617) |

## What reviewers say

### Call By Color

[App page](https://appshunter.io/ios/app/call-by-color/id889587035)

**In-app purchases:** none


### OnTime Clock

[App page](https://appshunter.io/ios/app/ontime-clock/id6758231595)

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

**In-app purchases:** none


## Frequently asked questions

### Is Call By Color free?

Call By Color is free to download, with no in-app purchases.

### Is OnTime Clock free?

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

### Do Call By Color or OnTime Clock have ads?

Neither Call By Color nor OnTime Clock shows ads.

### Which is updated more often, Call By Color or OnTime Clock?

Call By Color ships an update every 4 weeks, and OnTime Clock every 2 months. Most recently, Call By Color was updated on October 26, 2026 and OnTime Clock on October 11, 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.*