# MindBloom vs Book

The clearest difference is in-app purchases: MindBloom at none against Book's 1. MindBloom also leads on ads (none vs shown) and update cadence (every 4 weeks vs every 6 months). Book's advantage is iOS requirement (15.1 vs 17.0). On price and device support there is nothing between them.

Both are free to download. Book sells 1 one-off in-app purchase. MindBloom asks for nothing beyond the download.

MindBloom ships an update every 4 weeks, Book every 6 months. The most recent releases landed on October 24, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | MindBloom | Book |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 4 weeks** | Every 6 months |
| Size | 31 MB | 60 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Domenico Sammarro](https://appshunter.io/developer/1856246919) | [TATSUO NAKANO](https://appshunter.io/developer/1846200191) |

## What reviewers say

### MindBloom

[App page](https://appshunter.io/ios/app/mindbloom-pocket-library/id6755778887)

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

**In-app purchases:** none


### Book

[App page](https://appshunter.io/ios/app/book-lifecycle-manager/id6757215528)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $5.99 | one-time |


## Frequently asked questions

### Is MindBloom free?

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

### Is Book free?

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

### Do MindBloom or Book have ads?

Book shows ads; MindBloom does not.

### Which is updated more often, MindBloom or Book?

MindBloom ships an update every 4 weeks, and Book every 6 months. Most recently, MindBloom was updated on October 24, 2026 and Book on October 11, 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.*