# Lyn vs StudyOS

The clearest difference is ratings volume: StudyOS at 91 against Lyn's 2. StudyOS also leads on update cadence (every 9 days vs every 3 weeks). Lyn's advantage is iOS requirement (15.6 vs 17.1). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. Lyn sells 3 in-app purchases, starting at $4.99 per month and StudyOS sells 4 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for Lyn against 4.9 for StudyOS. That said, the two scores are not equally well evidenced: StudyOS has 91 ratings behind it against 2, so its average is the more settled of the two.

Lyn ships an update every 3 weeks, StudyOS every 9 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | Lyn | StudyOS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/lyn-ai-tutor-and-study-help/id6740411879/reviews)** | [4.9 (91 ratings)](https://appshunter.io/ios/app/studyos-study-with-ai/id6747879382/reviews) |
| Number of ratings | 2 | **91** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 9 days** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 90 MB | 118 MB |
| Requires iOS | **15.6** | 17.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Thuemmler AI GmbH](https://appshunter.io/developer/1772217985) | [DANIEL PONCELAS VARGAS](https://appshunter.io/developer/1823171837) |

## What reviewers say

### Lyn

[App page](https://appshunter.io/ios/app/lyn-ai-tutor-and-study-help/id6740411879)

This AI-powered tutor provides instant help with school subjects, homework, and exam preparation. It offers step-by-step explanations, transforms study materials into flashcards, and includes a voice mentor for interactive learning.

**Highlights:** AI tutor for all school subjects, Homework assistance and explanation, Convert study materials to flashcards, Voice mentor and language practice, Spaced repetition flashcards, Personalized learning projects

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Nachhilfe Mentor Pro | $4.99 | per month |
| Nachhilfe Mentor Pro | $6.99 | per month |
| Nachhilfe Mentor Pro | $49.99 | per year |


### 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 Lyn free?

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

### Is StudyOS free?

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

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

Lyn is rated higher. Lyn averages 5.0 out of 5 from 2 ratings, while StudyOS averages 4.9 from 91 ratings.

### Do Lyn or StudyOS have ads?

Neither Lyn nor StudyOS shows ads.

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

Lyn ships an update every 3 weeks, and StudyOS every 9 days. Most recently, Lyn 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.*