# Savage (Simple Shelf App) vs shelfio

The clearest difference is in-app purchases: shelfio at none against Savage (Simple Shelf App)'s 1. shelfio also leads on iOS requirement (18.0 vs 26.1). Savage (Simple Shelf App)'s advantage is update cadence (daily vs fortnightly). On price, ads and device support there is nothing between them.

Both are free to download. Savage (Simple Shelf App) sells 1 in-app purchase, starting at $9.49 per month. shelfio asks for nothing beyond the download.

Savage (Simple Shelf App) ships an update daily, shelfio fortnightly. The most recent releases landed on October 29, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Savage (Simple Shelf App) | shelfio |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 92.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Daily** | Fortnightly |
| Monetization | Free with in-app purchases | — |
| Size | 13 MB | 64 MB |
| Requires iOS | 26.1 | **18.0** |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [yu kawase](https://appshunter.io/developer/530948786) | [Reo Shigeno](https://appshunter.io/developer/1788864693) |

## What reviewers say

### Savage (Simple Shelf App)

[App page](https://appshunter.io/ios/app/savage-simple-shelf-app/id1496502686)

Organize your personal library with this minimalist app. Quickly add books by scanning barcodes and capture favorite passages using OCR technology. Sync your collection across devices for easy access anytime.

**Highlights:** Instant book registration via barcode scan, OCR passage capture from photos, Cloud sync across devices, Minimalist and intuitive design, Save quotes and notes

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Savage Pro | $9.49 | per month |


### shelfio

[App page](https://appshunter.io/ios/app/shelfio/id1577889639)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Savage (Simple Shelf App) free?

Savage (Simple Shelf App) is free to download, with in-app purchases available.

### Is shelfio free?

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

### Do Savage (Simple Shelf App) or shelfio have ads?

Neither Savage (Simple Shelf App) nor shelfio shows ads.

### Which is updated more often, Savage (Simple Shelf App) or shelfio?

Savage (Simple Shelf App) ships an update daily, and shelfio fortnightly. Most recently, Savage (Simple Shelf App) was updated on October 29, 2026 and shelfio on October 30, 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.*