# ShelfSage vs Readro

The clearest difference is in-app purchases: Readro at none against ShelfSage's 2. Readro also leads on device support (3 vs 1) and iOS requirement (15.1 vs 17.6). ShelfSage's advantage is update cadence (every 3 days vs every 3 weeks). On price and ads there is nothing between them.

Both are free to download. ShelfSage sells 2 in-app purchases, starting at $2.99 per month. Readro asks for nothing beyond the download.

ShelfSage ships an update every 3 days, Readro every 3 weeks. Both last shipped on November 5, 2026.

## The numbers

| Metric | ShelfSage | Readro |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 3 weeks |
| Size | 16 MB | 33 MB |
| Requires iOS | 17.6 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [HARUN YUSUF FENDOGLU](https://appshunter.io/developer/1888734946) | [Faize Nur OZGON](https://appshunter.io/developer/6791207023) |

## What reviewers say

### ShelfSage

[App page](https://appshunter.io/ios/app/shelfsage-book-tracker-and-ai/id6761296860)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ShelfSage Pro Aylık | $2.99 | per month |
| ShelfSage Pro Yıllık | $24.99 | per year |


### Readro

[App page](https://appshunter.io/ios/app/readro/id6791905134)

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

**In-app purchases:** none


## Frequently asked questions

### Is ShelfSage free?

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

### Is Readro free?

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

### Do ShelfSage or Readro have ads?

Neither ShelfSage nor Readro shows ads.

### Which is updated more often, ShelfSage or Readro?

ShelfSage ships an update every 3 days, and Readro every 3 weeks. Most recently, ShelfSage was updated on November 5, 2026 and Readro on November 5, 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.*