# Mobile Bookshelf vs READBASE (リードベース)

The clearest difference is ads: Mobile Bookshelf at none against READBASE (リードベース)'s shown. READBASE (リードベース)'s advantage is update cadence (every 3 days vs every 2 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Mobile Bookshelf sells 2 in-app purchases, starting at $0.99 per month and READBASE (リードベース) sells 4 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

Mobile Bookshelf ships an update every 2 months, READBASE (リードベース) every 3 days. The most recent releases landed on October 15, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Mobile Bookshelf | READBASE (リードベース) |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 3 days** |
| Size | 37 MB | 52 MB |
| Requires iOS | 15.5 | **15.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [kouten motoki](https://appshunter.io/developer/1604200923) | [kaito kotaka](https://appshunter.io/developer/1848780372) |

## What reviewers say

### Mobile Bookshelf

[App page](https://appshunter.io/ios/app/mobile-bookshelf-reading-log/id6744626194)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Standard Plan | $0.99 | per month |
| Advance Plan | $1.99 | per month |


### READBASE (リードベース)

[App page](https://appshunter.io/ios/app/readbase/id6754545629)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $3.99 | per month |
| gem3 | $0.99 | one-time |
| gem5 | $2.99 | one-time |
| gem30 | $6.99 | one-time |


## Frequently asked questions

### Is Mobile Bookshelf free?

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

### Is READBASE (リードベース) free?

READBASE (リードベース) is free to download, with in-app purchases available.

### Do Mobile Bookshelf or READBASE (リードベース) have ads?

READBASE (リードベース) shows ads; Mobile Bookshelf does not.

### Which is updated more often, Mobile Bookshelf or READBASE (リードベース)?

Mobile Bookshelf ships an update every 2 months, and READBASE (リードベース) every 3 days. Most recently, Mobile Bookshelf was updated on October 15, 2026 and READBASE (リードベース) on September 29, 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.*