# DDeBook vs Brainfold

The clearest difference is in-app purchases: DDeBook at none against Brainfold's 10. DDeBook also leads on iOS requirement (15.0 vs 18.0). Brainfold's advantage is update cadence (every 2 months vs every 5 months). On price, ads and device support there is nothing between them.

Both are free to download. Brainfold sells 10 in-app purchases, starting at $5.99 per month. DDeBook asks for nothing beyond the download.

DDeBook ships an update every 5 months, Brainfold every 2 months. The most recent releases landed on October 24, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | DDeBook | Brainfold |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 months** |
| Size | 43 MB | 33 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Openserve Co.,Ltd.](https://appshunter.io/developer/479158615) | [MagicLabSolutions](https://appshunter.io/developer/1884437516) |

## What reviewers say

### DDeBook

[App page](https://appshunter.io/ios/app/ddebook/id957285316)

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

**In-app purchases:** none


### Brainfold

[App page](https://appshunter.io/ios/app/brainfold-ai-flashcard-maker/id6760474378)

**Features:** Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 month plus access | $5.99 | per month |
| 1 month premium access | $12.99 | per month |
| 6 months plus access | $29.99 | per 6 months |
| 1 year plus access | $39.99 | per year |
| 6 months premium access | $49.99 | per 6 months |
| 1 year premium access | $79.99 | per year |
| 50 | $0.99 | one-time |
| 200 | $2.99 | one-time |
| 500 | $4.99 | one-time |
| Lifetime one-time purchase | $109.99 | one-time |


## Frequently asked questions

### Is DDeBook free?

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

### Is Brainfold free?

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

### Do DDeBook or Brainfold have ads?

Neither DDeBook nor Brainfold shows ads.

### Which is updated more often, DDeBook or Brainfold?

DDeBook ships an update every 5 months, and Brainfold every 2 months. Most recently, DDeBook was updated on October 24, 2026 and Brainfold on October 17, 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.*