# Readaroo vs BookGrass

The clearest difference is update cadence: BookGrass at daily against Readaroo's every 10 days. Readaroo's advantage is iOS requirement (15.1 vs 17.6). 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.

Readaroo ships an update every 10 days, BookGrass daily. The most recent releases landed on October 13, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Readaroo | BookGrass |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 days | **Daily** |
| Size | 36 MB | 9 MB |
| Requires iOS | **15.1** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Concision Systems LLC](https://appshunter.io/developer/1516128404) | [Jaeyoung Heo](https://appshunter.io/developer/1833670805) |

## What reviewers say

### Readaroo

[App page](https://appshunter.io/ios/app/readaroo/id6744665248)

**Features:** macOS Compatibility

**In-app purchases:** none


### BookGrass

[App page](https://appshunter.io/ios/app/bookgrass/id6757300121)

**In-app purchases:** none


## Frequently asked questions

### Is Readaroo free?

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

### Is BookGrass free?

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

### Do Readaroo or BookGrass have ads?

Neither Readaroo nor BookGrass shows ads.

### Which is updated more often, Readaroo or BookGrass?

Readaroo ships an update every 10 days, and BookGrass daily. Most recently, Readaroo was updated on October 13, 2026 and BookGrass on October 12, 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.*