# Kuiz vs StudyOS

The clearest difference is ads: StudyOS at none against Kuiz's shown. StudyOS also leads on update cadence (every 9 days vs every 2 months) and ratings volume (66 vs 9). Kuiz's advantage is iOS requirement (15.1 vs 17.1). On price, rating, in-app purchases and monetization model there is nothing between them.

Both are free to download. Kuiz sells 3 in-app purchases, starting at $1.99 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 — 4.8 for Kuiz against 4.9 for StudyOS. That said, the two scores are not equally well evidenced: StudyOS has 66 ratings behind it against 9, so its average is the more settled of the two.

Kuiz ships an update every 2 months, StudyOS every 9 days. The most recent releases landed on October 6, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Kuiz | StudyOS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (9 ratings)](https://appshunter.io/ios/app/kuiz/id6478173670/reviews) | **[4.9 (66 ratings)](https://appshunter.io/ios/app/studyos-study-with-ai/id6747879382/reviews)** |
| Number of ratings | 9 | **66** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 9 days** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 66 MB | 118 MB |
| Requires iOS | **15.1** | 17.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Eduardo Sanchez](https://appshunter.io/developer/1665475734) | [DANIEL PONCELAS VARGAS](https://appshunter.io/developer/1823171837) |

## What reviewers say

### Kuiz

[App page](https://appshunter.io/ios/app/kuiz/id6478173670)

Prepare for your dentistry homologation exam with this question and answer app. Practice extensively to achieve the highest score and ensure your success in the certification process.

**Highlights:** Question and answer practice, Dentistry homologation exam focus, Score optimization, Certification preparation

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ilimitado | $1.99 | per month |
| Kuiz+ Mensual | $2.99 | per month |
| Kuiz+ Anual | $19.99 | 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 Kuiz free?

Kuiz 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, Kuiz or StudyOS?

StudyOS is rated higher. Kuiz averages 4.8 out of 5 from 9 ratings, while StudyOS averages 4.9 from 66 ratings.

### Do Kuiz or StudyOS have ads?

Kuiz shows ads; StudyOS does not.

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

Kuiz ships an update every 2 months, and StudyOS every 9 days. Most recently, Kuiz was updated on October 6, 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.*