# Flash Stack vs Recall

The clearest difference is iOS requirement: Flash Stack at 18.6 against Recall's 26.0. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Flash Stack | Recall |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 days | — |
| Size | 8 MB | 2 MB |
| Requires iOS | **18.6** | 26.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Reuben Enterprises Ltd](https://appshunter.io/developer/1804593784) | [Jorge Campos](https://appshunter.io/developer/1894137511) |

## What reviewers say

### Flash Stack

[App page](https://appshunter.io/ios/app/flash-stack-revision-cards/id6763527608)

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

**In-app purchases:** none


### Recall

[App page](https://appshunter.io/ios/app/recall-ai-private-study-cards/id6787631806)

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

**In-app purchases:** none


## Frequently asked questions

### Is Flash Stack free?

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

### Is Recall free?

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

### Do Flash Stack or Recall have ads?

Neither Flash Stack nor Recall shows ads.

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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.*