# Reading Memory vs 読書空間｜本棚・読書記録

The clearest difference is update cadence: 読書空間｜本棚・読書記録 at every 9 days against Reading Memory's every 2 months. 読書空間｜本棚・読書記録 also leads on iOS requirement (17.0 vs 26.0). On price, review sentiment, ads and in-app purchases there is nothing between them.

Both are free to download. Reading Memory sells 2 in-app purchases, starting at $3.99 per month and 読書空間｜本棚・読書記録 sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Reading Memory ships an update every 2 months, 読書空間｜本棚・読書記録 every 9 days. Both last shipped on November 5, 2026.

## The numbers

| Metric | Reading Memory | 読書空間｜本棚・読書記録 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 9 days** |
| Monetization | Freemium | — |
| Size | 48 MB | 17 MB |
| Requires iOS | 26.0 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Kyoichi Taniguchi](https://appshunter.io/developer/1609440791) | [SOHEI YOSHIOKA](https://appshunter.io/developer/1833587562) |

## What reviewers say

### Reading Memory

[App page](https://appshunter.io/ios/app/reading-memory-book-tracker/id6751159926)

This app helps you build a consistent reading habit and retain information from the books you read. It allows you to track reading days, manage your to-read pile, and take private notes on your books. Advanced features like AI-powered key point extraction are available through an optional subscription.

**Highlights:** Build daily reading habits, Track reading streaks and finished books, Organize to-read and finished book piles, Take private notes and sticky notes, Search and add books via barcode or title, Generate reading cards and badges, AI-powered key point extraction (subscription)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| メモリープラス月額プラン | $3.99 | per month |
| メモリープラス年額プラン | $39.99 | per year |


### 読書空間｜本棚・読書記録

[App page](https://appshunter.io/ios/app/id6787682270)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Proプラン | $5.99 | one-time |


## Frequently asked questions

### Is Reading Memory free?

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

### Is 読書空間｜本棚・読書記録 free?

読書空間｜本棚・読書記録 is free to download, with in-app purchases available.

### Do Reading Memory or 読書空間｜本棚・読書記録 have ads?

Neither Reading Memory nor 読書空間｜本棚・読書記録 shows ads.

### Which is updated more often, Reading Memory or 読書空間｜本棚・読書記録?

Reading Memory ships an update every 2 months, and 読書空間｜本棚・読書記録 every 9 days. Most recently, Reading Memory was updated on November 5, 2026 and 読書空間｜本棚・読書記録 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.*