# UniTalk Mobile vs Concentration Clock

The clearest difference is ads: UniTalk Mobile at none against Concentration Clock's shown. Concentration Clock's advantage is iOS requirement (12.0 vs 16.0). 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.

## The numbers

| Metric | UniTalk Mobile | Concentration Clock |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 15 months | — |
| Size | 97 MB | 39 MB |
| Requires iOS | 16.0 | **12.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Axera S.p.a.](https://appshunter.io/developer/967910470) | [Ais Business Mexico S.A. de C.V.](https://appshunter.io/developer/1764495798) |

## What reviewers say

### UniTalk Mobile

[App page](https://appshunter.io/ios/app/unitalk-mobile/id1519288895)

**In-app purchases:** none


### Concentration Clock

[App page](https://appshunter.io/ios/app/concentration-clock/id6740191750)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is UniTalk Mobile free?

UniTalk Mobile is free to download, with no in-app purchases.

### Is Concentration Clock free?

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

### Do UniTalk Mobile or Concentration Clock have ads?

Concentration Clock shows ads; UniTalk Mobile does not.

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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.*