# StudyOS vs AI Flashcards

The clearest difference is update cadence: StudyOS at every 9 days against AI Flashcards's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. StudyOS sells 4 in-app purchases, starting at $4.99 per 7 days and AI Flashcards sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

StudyOS ships an update every 9 days, AI Flashcards every 2 months. The most recent releases landed on August 12, 2026 and September 7, 2026 respectively.

## The numbers

| Metric | StudyOS | AI Flashcards |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (66 ratings)](https://appshunter.io/ios/app/studyos-study-with-ai/id6747879382/reviews)** | — |
| Number of ratings | **66** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 2 months |
| Monetization | Freemium | — |
| Size | 118 MB | 9 MB |
| Requires iOS | 17.1 | **17.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [DANIEL PONCELAS VARGAS](https://appshunter.io/developer/1823171837) | [Gustavo Silva](https://appshunter.io/developer/1860372546) |

## What reviewers say

### StudyOS

[App page](https://appshunter.io/ios/app/studyos-study-with-ai/id6747879382)

Transform your study materials into interactive flashcards, summaries, and quizzes with AI. This app efficiently prepares you for exams and helps you master concepts on the go, making learning faster and more engaging.

**Highlights:** AI-generated flashcards, Automated summaries, Personalized quizzes, Material upload (notes, PDFs, images), Spaced repetition techniques, Progress tracking

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Access | $4.99 | per 7 days |
| Premium Access | $12.99 | per month |
| Premium Access | $12.99 | per month |
| Premium Access | $69.99 | per year |


### AI Flashcards

[App page](https://appshunter.io/ios/app/ai-flashcards-lembra/id6756965659)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lembra Pro Monthly | $4.99 | per month |
| Lembra Pro Yearly | $29.99 | per year |


## Frequently asked questions

### Is StudyOS free?

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

### Is AI Flashcards free?

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

### Do StudyOS or AI Flashcards have ads?

Neither StudyOS nor AI Flashcards shows ads.

### Which is updated more often, StudyOS or AI Flashcards?

StudyOS ships an update every 9 days, and AI Flashcards every 2 months. Most recently, StudyOS was updated on August 12, 2026 and AI Flashcards on September 7, 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.*