# StudyOS vs Flashka

The clearest difference is ads: StudyOS at none against Flashka's shown. Flashka's advantage is ratings volume (333 vs 66). On price, rating, update cadence and in-app purchases there is nothing between them.

Both are free to download. StudyOS sells 4 in-app purchases, starting at $4.99 per 7 days and Flashka sells 4 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.9 for StudyOS against 4.8 for Flashka. That said, the two scores are not equally well evidenced: Flashka has 333 ratings behind it against 66, so its average is the more settled of the two.

StudyOS ships an update every 9 days, Flashka fortnightly. The most recent releases landed on August 12, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | StudyOS | Flashka |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (66 ratings)](https://appshunter.io/ios/app/studyos-study-with-ai/id6747879382/reviews)** | [4.8 (333 ratings)](https://appshunter.io/ios/app/flashka-ai-flashcards-maker/id6748599950/reviews) |
| Number of ratings | 66 | **333** |
| Positive reviews | — | 82.6% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 9 days** | Fortnightly |
| Monetization | Freemium | Free with in-app purchases |
| Size | 118 MB | 169 MB |
| Requires iOS | 17.1 | **16.4** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [DANIEL PONCELAS VARGAS](https://appshunter.io/developer/1823171837) | [Flashka OÜ](https://appshunter.io/developer/1826494341) |

## 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 |


### Flashka

[App page](https://appshunter.io/ios/app/flashka-ai-flashcards-maker/id6748599950)

Transform notes, PDFs, and lecture slides into interactive flashcards and quizzes using AI. Study effectively with spaced repetition and test your knowledge with AI-powered mock exams. Get instant explanations from a personal AI tutor.

**Highlights:** AI flashcard generation, Import notes, PDFs, photos, Spaced repetition learning, AI-powered quizzes, Personal AI tutor, Interactive material highlighting

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Wizard Subscription | $3.99 | per month |
| Wizard Subscription | $9.99 | per month |
| Black Friday Discount | $29.99 | per year |
| Wizard Subscription | $59.99 | per year |


## Frequently asked questions

### Is StudyOS free?

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

### Is Flashka free?

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

### Which has better reviews, StudyOS or Flashka?

StudyOS is rated higher. StudyOS averages 4.9 out of 5 from 66 ratings, while Flashka averages 4.8 from 333 ratings.

### Do StudyOS or Flashka have ads?

Flashka shows ads; StudyOS does not.

### Which is updated more often, StudyOS or Flashka?

StudyOS ships an update every 9 days, and Flashka fortnightly. Most recently, StudyOS was updated on August 12, 2026 and Flashka on September 24, 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.*