# Info SZ vs QuizChat/Helpful App for Study

The clearest difference is update cadence: QuizChat/Helpful App for Study at every 2 days against Info SZ's every 3 weeks. Info SZ's advantage is iOS requirement (14.2 vs 26.2). 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.

Info SZ ships an update every 3 weeks, QuizChat/Helpful App for Study every 2 days. The most recent releases landed on October 10, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Info SZ | QuizChat/Helpful App for Study |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 3 weeks | **Every 2 days** |
| Monetization | — | Ad-supported |
| Size | 9 MB | 24 MB |
| Requires iOS | **14.2** | 26.2 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Kenichi Kawachi](https://appshunter.io/developer/1512629371) | [Kodai Nakade](https://appshunter.io/developer/1679722037) |

## What reviewers say

### Info SZ

[App page](https://appshunter.io/ios/app/info-sz/id1547104088)

**Features:** macOS Compatibility

**In-app purchases:** none


### QuizChat/Helpful App for Study

[App page](https://appshunter.io/ios/app/quizchathelpful-app-for-study/id6739839734)

Create custom study materials with a personalized character that quizzes you. Import question data from your computer for efficient learning management. Set test parameters like question count and time limits.

**Highlights:** Character creation, Custom question/answer creation, Character-led quizzing, Folder organization for questions, CSV file import for questions, Adjustable test settings

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Info SZ free?

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

### Is QuizChat/Helpful App for Study free?

QuizChat/Helpful App for Study is free to download, with no in-app purchases.

### Do Info SZ or QuizChat/Helpful App for Study have ads?

Both Info SZ and QuizChat/Helpful App for Study show ads.

### Which is updated more often, Info SZ or QuizChat/Helpful App for Study?

Info SZ ships an update every 3 weeks, and QuizChat/Helpful App for Study every 2 days. Most recently, Info SZ was updated on October 10, 2026 and QuizChat/Helpful App for Study on October 13, 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.*