# BrainCell | Flashcards & Study vs Keepthat

The clearest difference is iOS requirement: BrainCell | Flashcards & Study at 16.0 against Keepthat's 18.6. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. BrainCell | Flashcards & Study sells 4 in-app purchases, starting at $3.99 per month and Keepthat sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

BrainCell | Flashcards & Study ships an update every 2 weeks, Keepthat fortnightly. The most recent releases landed on October 13, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | BrainCell | Flashcards & Study | Keepthat |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Fortnightly |
| Size | 239 MB | 7 MB |
| Requires iOS | **16.0** | 18.6 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [VisionByte GmbH](https://appshunter.io/developer/1819908094) | [Valeriia Tsova](https://appshunter.io/developer/1792714702) |

## What reviewers say

### BrainCell | Flashcards & Study

[App page](https://appshunter.io/ios/app/braincell-flashcards-and-study/id6747115684)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| BrainCell Premium \| 1 Month | $3.99 | per month |
| BrainCell Premium \| 3 Months | $8.99 | per 3 months |
| BrainCell Premium \| 1 Year | $24.99 | per year |
| BrainCell Premium \| Lifetime | $49.99 | one-time |


### Keepthat

[App page](https://appshunter.io/ios/app/keepthat-ai-memory-and-recall/id6758964305)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Keep That Pro Monthly | $9.99 | per month |
| Keep That Pro Annual | $99.99 | per year |


## Frequently asked questions

### Is BrainCell | Flashcards & Study free?

BrainCell | Flashcards & Study is free to download, with in-app purchases available.

### Is Keepthat free?

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

### Do BrainCell | Flashcards & Study or Keepthat have ads?

Neither BrainCell | Flashcards & Study nor Keepthat shows ads.

### Which is updated more often, BrainCell | Flashcards & Study or Keepthat?

BrainCell | Flashcards & Study ships an update every 2 weeks, and Keepthat fortnightly. Most recently, BrainCell | Flashcards & Study was updated on October 13, 2026 and Keepthat on October 16, 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.*