# Appruébalo vs StudyOS

The clearest difference is rating: StudyOS at 4.9 against Appruébalo's 2.0. StudyOS also leads on update cadence (every 9 days vs every 3 months) and ratings volume (91 vs 3). Appruébalo's advantage is iOS requirement (9.0 vs 17.1). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Appruébalo sells 2 one-off in-app purchases 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.

StudyOS holds the better App Store score, 4.9 against 2.0. That said, the two scores are not equally well evidenced: StudyOS has 91 ratings behind it against 3, so its average is the more settled of the two.

Appruébalo ships an update every 3 months, StudyOS every 9 days. The most recent releases landed on October 20, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Appruébalo | StudyOS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.0 (3 ratings)](https://appshunter.io/ios/app/appruebalo/id1013544449/reviews) | **[4.9 (91 ratings)](https://appshunter.io/ios/app/studyos-study-with-ai/id6747879382/reviews)** |
| Number of ratings | 3 | **91** |
| Positive reviews | 26.1% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 9 days** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 8 MB | 118 MB |
| Requires iOS | **9.0** | 17.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Diego De la Sancha](https://appshunter.io/developer/1013544448) | [DANIEL PONCELAS VARGAS](https://appshunter.io/developer/1823171837) |

## What reviewers say

### Appruébalo

[App page](https://appshunter.io/ios/app/appruebalo/id1013544449)

Prepare for your university entrance exams with this educational game. It features over 2000 questions and tracks your progress with detailed statistics from your last 15 attempts. Study anytime, anywhere, in a fun and engaging way.

**Highlights:** Over 2000 practice questions, Gamified learning system, Progress statistics for last 15 attempts, Study anytime, anywhere, Option to purchase specific subjects, Unlock full content with PRO version

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Compra de Materia | $0.99 | one-time |
| Test Simulator | $0.99 | one-time |


### 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 Appruébalo free?

Appruébalo 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, Appruébalo or StudyOS?

StudyOS is rated higher. Appruébalo averages 2.0 out of 5 from 3 ratings, while StudyOS averages 4.9 from 91 ratings.

### Do Appruébalo or StudyOS have ads?

Neither Appruébalo nor StudyOS shows ads.

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

Appruébalo ships an update every 3 months, and StudyOS every 9 days. Most recently, Appruébalo was updated on October 20, 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.*