# Book Summary vs MemoCap

The clearest difference is iOS requirement: Book Summary at 12.0 against MemoCap's 18.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Book Summary sells 2 in-app purchases, starting at $9.00 per month and MemoCap sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Book Summary ships an update weekly, MemoCap every 2 weeks. The most recent releases landed on November 3, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Book Summary | MemoCap |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 2 weeks |
| Size | 90 MB | 499 MB |
| Requires iOS | **12.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Phan Tai Phuong](https://appshunter.io/developer/952621043) | [Thierry Baudhuin](https://appshunter.io/developer/817404895) |

## What reviewers say

### Book Summary

[App page](https://appshunter.io/ios/app/book-summary-nine-language/id6450974180)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $9.00 | per month |
| Yearly Premium | $59.00 | per year |


### MemoCap

[App page](https://appshunter.io/ios/app/memocap-world-capitals/id6818445482)

**Features:** Family Sharing, iPhone Duo support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MemoCap — Full version | $7.99 | one-time |


## Frequently asked questions

### Is Book Summary free?

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

### Is MemoCap free?

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

### Do Book Summary or MemoCap have ads?

Neither Book Summary nor MemoCap shows ads.

### Which is updated more often, Book Summary or MemoCap?

Book Summary ships an update weekly, and MemoCap every 2 weeks. Most recently, Book Summary was updated on November 3, 2026 and MemoCap on November 6, 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.*