# Lurai AI vs Flash Stack

The clearest difference is in-app purchases: Flash Stack at none against Lurai AI's 3. Lurai AI's advantage is device support (3 vs 1) and iOS requirement (15.1 vs 18.6). On price and ads there is nothing between them.

Both are free to download. Lurai AI sells 3 in-app purchases, starting at $9.99 per 7 days. Flash Stack asks for nothing beyond the download.

## The numbers

| Metric | Lurai AI | Flash Stack |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/lurai-ai-learn-recall-apply/id6753128406/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | — | Every 3 days |
| Monetization | Free with in-app purchases | — |
| Size | 50 MB | 8 MB |
| Requires iOS | **15.1** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [LangChill, LLC](https://appshunter.io/developer/1785278589) | [Reuben Enterprises Ltd](https://appshunter.io/developer/1804593784) |

## What reviewers say

### Lurai AI

[App page](https://appshunter.io/ios/app/lurai-ai-learn-recall-apply/id6753128406)

This app transforms documents, podcasts, and recordings into organized notes. It enhances understanding and recall through guided learning tools like quizzes and flashcards, utilizing proven methods for long-term memory retention.

**Highlights:** Automated note-taking from audio/documents, Guided learning tools (quizzes, flashcards), Feynman Technique for understanding, Active recall and spaced repetition, AI chatbot for homework help, Translate content into organized notes

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lurai Premium Weekly | $9.99 | per 7 days |
| Lurai Premium Monthly | $19.00 | per month |
| Lurai Premium Annual | $129.00 | per year |


### Flash Stack

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

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

**In-app purchases:** none


## Frequently asked questions

### Is Lurai AI free?

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

### Is Flash Stack free?

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

### Do Lurai AI or Flash Stack have ads?

Neither Lurai AI nor Flash Stack 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.*