# IST Quiz App vs Studii

The clearest difference is update cadence: Studii at weekly against IST Quiz App's every 12 months. IST Quiz App's advantage is iOS requirement (13.0 vs 15.1). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

IST Quiz App ships an update every 12 months, Studii weekly. The most recent releases landed on October 2, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | IST Quiz App | Studii |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 12 months | **Weekly** |
| Size | 22 MB | 40 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Patricia Pauli](https://appshunter.io/developer/1587769862) | [Chengkai Xue](https://appshunter.io/developer/1852284399) |

## What reviewers say

### IST Quiz App

[App page](https://appshunter.io/ios/app/ist-quiz-app/id1491663052)

**Features:** macOS Compatibility

**In-app purchases:** none


### Studii

[App page](https://appshunter.io/ios/app/studii-doomscroll-and-learn/id6755154363)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is IST Quiz App free?

IST Quiz App is free to download, with no in-app purchases.

### Is Studii free?

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

### Do IST Quiz App or Studii have ads?

Neither IST Quiz App nor Studii shows ads.

### Which is updated more often, IST Quiz App or Studii?

IST Quiz App ships an update every 12 months, and Studii weekly. Most recently, IST Quiz App was updated on October 2, 2026 and Studii on October 6, 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.*