# TetraClock vs Oil Timer

The clearest difference is device support: TetraClock at 3 against Oil Timer's —. On price, in-app purchases and iOS requirement 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 | TetraClock | Oil Timer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | — |
| Update frequency | Every 2 days | — |
| Size | 6 MB | 53 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [Legal Prompt Inc.](https://appshunter.io/developer/1490746932) | [Focaccia, Inc.](https://appshunter.io/developer/1689143851) |

## What reviewers say

### TetraClock

[App page](https://appshunter.io/ios/app/tetraclock-falling-block/id6504890211)

**Features:** macOS Compatibility

**In-app purchases:** none


### Oil Timer

[App page](https://appshunter.io/ios/app/oil-timer/id6760693832)

**In-app purchases:** none


## Frequently asked questions

### Is TetraClock free?

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

### Is Oil Timer free?

Oil Timer is free to download, with no in-app purchases.

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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.*