# SORARI vs shelff

The clearest difference is in-app purchases: shelff at none against SORARI's 1. shelff also leads on update cadence (every 4 days vs every 4 months) and chart position (#45 vs unranked). SORARI's advantage is price ($1.99 vs $6.99) and iOS requirement (12.0 vs 17.0). On ads and device support there is nothing between them.

SORARI costs $1.99 and shelff $6.99 up front. SORARI sells 1 one-off in-app purchase. shelff asks for nothing beyond the download.

SORARI ships an update every 4 months, shelff every 4 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | SORARI | shelff |
| --- | --- | --- |
| Price | **$1.99** | $6.99 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 4 days** |
| Monetization | — | Paid |
| Best chart rank | — | **#45** |
| Size | 28 MB | 9 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [satoshi kumagai](https://appshunter.io/developer/1193484492) | [Satoshi Kojima](https://appshunter.io/developer/1887157382) |

## What reviewers say

### SORARI

[App page](https://appshunter.io/ios/app/sorari-nonad/id1587550683)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Front cover | $0.99 | one-time |


### shelff

[App page](https://appshunter.io/ios/app/shelff-pdf-book-reader/id6760986626)

**Currently charting:** #45 Top Paid · Book (US App Store)

Manage and read your PDF books with this app. Organize your library, customize your reading experience, and access your books through iCloud. It offers advanced PDF features and seamless integration with Siri and Shortcuts.

**Highlights:** Organize books with folders, tags, and collections, Full-text search across PDFs, Customizable PDF reader with margin cropping, Metadata editing and auto-extraction, Siri and Shortcuts integration, Data stored in iCloud Documents

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

**In-app purchases:** none


## Frequently asked questions

### Is SORARI free?

SORARI costs $1.99, and also offers in-app purchases.

### Is shelff free?

shelff costs $6.99, with no in-app purchases.

### Do SORARI or shelff have ads?

Neither SORARI nor shelff shows ads.

### Which is updated more often, SORARI or shelff?

SORARI ships an update every 4 months, and shelff every 4 days. Most recently, SORARI was updated on October 30, 2026 and shelff on October 31, 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.*