# Librarium vs StudyOS

The clearest difference is in-app purchases: Librarium at none against StudyOS's 4. On price, update cadence, ads 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. Librarium asks for nothing beyond the download.

Librarium ships an update fortnightly, StudyOS every 9 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | Librarium | StudyOS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.9 (91 ratings)](https://appshunter.io/ios/app/studyos-study-with-ai/id6747879382/reviews)** |
| Number of ratings | — | **91** |
| Positive reviews | 47.1% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 9 days** |
| Monetization | **Free** | Freemium |
| Size | 71 MB | 118 MB |
| Requires iOS | **16.0** | 17.1 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [ODILOTID SL](https://appshunter.io/developer/976580041) | [DANIEL PONCELAS VARGAS](https://appshunter.io/developer/1823171837) |

## What reviewers say

### Librarium

[App page](https://appshunter.io/ios/app/librarium/id1250006891)

Access a digital library of e-books from Extremadura's school libraries. Borrow, reserve, and read titles directly through the platform. Enjoy streaming or offline reading of your chosen books.

**Highlights:** Digital library access, E-book borrowing, Book reservations, Streaming reading, Offline reading

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is Librarium free?

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

### Is StudyOS free?

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

### Do Librarium or StudyOS have ads?

Neither Librarium nor StudyOS shows ads.

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

Librarium ships an update fortnightly, and StudyOS every 9 days. Most recently, Librarium was updated on October 24, 2026 and StudyOS on October 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.*