# Pitagor App vs StudyDeck

The clearest difference is in-app purchases: Pitagor App at none against StudyDeck's 2. Pitagor App also leads on iOS requirement (15.1 vs 26.0). StudyDeck's advantage is update cadence (every 2 weeks vs every 2 months). On price, ads and device support there is nothing between them.

Both are free to download. StudyDeck sells 2 in-app purchases, starting at $12.99 per year. Pitagor App asks for nothing beyond the download.

Pitagor App ships an update every 2 months, StudyDeck every 2 weeks. The most recent releases landed on September 24, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Pitagor App | StudyDeck |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | — | Freemium |
| Size | 30 MB | 13 MB |
| Requires iOS | **15.1** | 26.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Vasil Anastasov](https://appshunter.io/developer/1590122912) | [Frederic Bacro](https://appshunter.io/developer/1482824795) |

## What reviewers say

### Pitagor App

[App page](https://appshunter.io/ios/app/pitagor-app/id6756267553)

**Features:** macOS Compatibility

**In-app purchases:** none


### StudyDeck

[App page](https://appshunter.io/ios/app/studydeck-ai-flashcards/id6760428575)

Transform notes, PDFs, or photos into AI-powered flashcards instantly. Offers seven study modes, including spaced repetition and practice tests, to help you learn smarter and ace exams. On-device AI ensures your study materials remain private.

**Highlights:** AI-powered flashcard generation, Import notes, PDFs, and photos, Seven distinct study modes, Spaced repetition (FSRS algorithm), On-device AI for privacy, Progress tracking and analytics, Share decks with classmates

**Features:** Safari Extension, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| StudyDeck Premium Annual | $12.99 | per year |
| Lifetime Pass | $39.99 | one-time |


## Frequently asked questions

### Is Pitagor App free?

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

### Is StudyDeck free?

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

### Do Pitagor App or StudyDeck have ads?

Neither Pitagor App nor StudyDeck shows ads.

### Which is updated more often, Pitagor App or StudyDeck?

Pitagor App ships an update every 2 months, and StudyDeck every 2 weeks. Most recently, Pitagor App was updated on September 24, 2026 and StudyDeck on October 3, 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.*