# Grass vs Amber

The clearest difference is in-app purchases: Grass at none against Amber's 1. Grass also leads on ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Amber sells 1 in-app purchase, starting at $0.99 per month. Grass asks for nothing beyond the download.

## The numbers

| Metric | Grass | Amber |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 9 days | — |
| Size | 5 MB | 114 MB |
| Requires iOS | **18.0** | 18.6 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Paul Kim](https://appshunter.io/developer/1481428821) | [Gal Itach](https://appshunter.io/developer/1867158254) |

## What reviewers say

### Grass

[App page](https://appshunter.io/ios/app/grass-visual-focus-timer/id6752250835)

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

**In-app purchases:** none


### Amber

[App page](https://appshunter.io/ios/app/amber-study-focus-and-sleep/id6773214018)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Amber Light Pro | $0.99 | per month |


## Frequently asked questions

### Is Grass free?

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

### Is Amber free?

Amber is free to download, with in-app purchases available.

### Do Grass or Amber have ads?

Amber shows ads; Grass 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.*