# Plank Timer | Dr. Simplicity vs Relax Eye Lab

The clearest difference is ads: Relax Eye Lab at none against Plank Timer | Dr. Simplicity's shown. On price, in-app purchases, device support 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 | Plank Timer | Dr. Simplicity | Relax Eye Lab |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 5 days | — |
| Size | 9 MB | 41 MB |
| Requires iOS | 15.3 | **15.1** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Saihou Ieong](https://appshunter.io/developer/1676200405) | [JIAN Wang](https://appshunter.io/developer/1850592382) |

## What reviewers say

### Plank Timer | Dr. Simplicity

[App page](https://appshunter.io/ios/app/plank-timer-dr-simplicity/id6566170165)

**Features:** macOS Compatibility

**In-app purchases:** none


### Relax Eye Lab

[App page](https://appshunter.io/ios/app/relax-eye-lab/id6754861209)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Plank Timer | Dr. Simplicity free?

Plank Timer | Dr. Simplicity is free to download, with no in-app purchases.

### Is Relax Eye Lab free?

Relax Eye Lab is free to download, with no in-app purchases.

### Do Plank Timer | Dr. Simplicity or Relax Eye Lab have ads?

Plank Timer | Dr. Simplicity shows ads; Relax Eye Lab 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.*