# StudyOS vs SeruMaster

The clearest difference is ads: StudyOS at none against SeruMaster's shown. SeruMaster's advantage is iOS requirement (15.0 vs 17.1). On price, update cadence, in-app purchases 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 and SeruMaster sells 8 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

StudyOS ships an update every 9 days, SeruMaster every 5 days. The most recent releases landed on October 3, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | StudyOS | SeruMaster |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (66 ratings)](https://appshunter.io/ios/app/studyos-study-with-ai/id6747879382/reviews)** | — |
| Number of ratings | **66** | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 9 days | **Every 5 days** |
| Monetization | Freemium | — |
| Size | 118 MB | 92 MB |
| Requires iOS | 17.1 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [DANIEL PONCELAS VARGAS](https://appshunter.io/developer/1823171837) | [Pool Brayan Loayza Ramirez](https://appshunter.io/developer/1893687701) |

## 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 |


### SeruMaster

[App page](https://appshunter.io/ios/app/serumaster/id6762292417)

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pase Clínico (1 Mes) | $3.99 | per month |
| Trimestre Pro | $9.99 | per 3 months |
| Pase Intensivo (6 Meses) | $19.99 | per 6 months |
| Pase Anual (12 Meses) | $29.99 | per year |
| Bolsa de SeruCoins | $0.99 | one-time |
| Maletín de SeruCoins | $2.99 | one-time |
| Cofre de SeruCoins | $6.99 | one-time |
| Bóveda de SeruCoins | $19.99 | one-time |


## Frequently asked questions

### Is StudyOS free?

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

### Is SeruMaster free?

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

### Do StudyOS or SeruMaster have ads?

SeruMaster shows ads; StudyOS does not.

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

StudyOS ships an update every 9 days, and SeruMaster every 5 days. Most recently, StudyOS was updated on October 3, 2026 and SeruMaster on October 1, 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.*