# Biblio Digital vs StudyOS

The clearest difference is in-app purchases: Biblio Digital at none against StudyOS's 4. StudyOS's advantage is rating (4.9 vs 4.6). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. StudyOS sells 4 in-app purchases, starting at $4.99 per 7 days. Biblio Digital asks for nothing beyond the download.

StudyOS holds the better App Store score, 4.9 against 4.6. Both are backed by a comparable volume of ratings — 148 and 66 respectively.

Biblio Digital ships an update every 10 days, StudyOS every 9 days. The most recent releases landed on October 9, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Biblio Digital | StudyOS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (148 ratings)](https://appshunter.io/ios/app/biblio-digital/id1028387742/reviews) | **[4.9 (66 ratings)](https://appshunter.io/ios/app/studyos-study-with-ai/id6747879382/reviews)** |
| Number of ratings | **148** | 66 |
| Positive reviews | 43.5% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 10 days | **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 | [Odilo](https://appshunter.io/developer/976580041) | [DANIEL PONCELAS VARGAS](https://appshunter.io/developer/1823171837) |

## What reviewers say

### Biblio Digital

[App page](https://appshunter.io/ios/app/biblio-digital/id1028387742)

Access and borrow e-books from your public library's digital platform anytime, anywhere. Read online, download for offline access, and customize your reading experience with adjustable fonts, brightness, and note-taking features. Continue reading seamlessly across up to six linked devices.

**Highlights:** Borrow e-books from public libraries, Read online or download for offline, Customize reading format (font, size, brightness), Take notes and highlight text, Sync reading progress across devices

**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 Biblio Digital free?

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

### Is StudyOS free?

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

### Which has better reviews, Biblio Digital or StudyOS?

StudyOS is rated higher. Biblio Digital averages 4.6 out of 5 from 148 ratings, while StudyOS averages 4.9 from 66 ratings.

### Do Biblio Digital or StudyOS have ads?

Neither Biblio Digital nor StudyOS shows ads.

### Which is updated more often, Biblio Digital or StudyOS?

Biblio Digital ships an update every 10 days, and StudyOS every 9 days. Most recently, Biblio Digital was updated on October 9, 2026 and StudyOS 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.*