# 27 Reader vs OnShelf

The clearest difference is in-app purchases: 27 Reader at none against OnShelf's 1. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. OnShelf sells 1 one-off in-app purchase. 27 Reader asks for nothing beyond the download.

## The numbers

| Metric | 27 Reader | OnShelf |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 2 weeks |
| Size | 33 MB | 6 MB |
| Requires iOS | 26.2 | **26.0** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPad |
| Age rating | 12+ | +4 |
| Developer | [Juan Carlos Moran Martin](https://appshunter.io/developer/1857071962) | [Ruben Gonzalez](https://appshunter.io/developer/1885517252) |

## What reviewers say

### 27 Reader

[App page](https://appshunter.io/ios/app/27-reader/id6760209501)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### OnShelf

[App page](https://appshunter.io/ios/app/onshelf/id6760916697)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OnShelf Premium | $0.99 | one-time |


## Frequently asked questions

### Is 27 Reader free?

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

### Is OnShelf free?

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

### Do 27 Reader or OnShelf have ads?

Neither 27 Reader nor OnShelf shows ads.

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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.*