# CHALK ビジネス専用チャット vs QuizChat/Helpful App for Study

The clearest difference is ads: CHALK ビジネス専用チャット at none against QuizChat/Helpful App for Study's shown. CHALK ビジネス専用チャット also leads on iOS requirement (13.0 vs 26.2). QuizChat/Helpful App for Study's advantage is update cadence (every 2 days vs every 5 weeks). On price, 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.

CHALK ビジネス専用チャット ships an update every 5 weeks, QuizChat/Helpful App for Study every 2 days. The most recent releases landed on October 14, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | CHALK ビジネス専用チャット | QuizChat/Helpful App for Study |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 5 weeks | **Every 2 days** |
| Monetization | — | Ad-supported |
| Size | 45 MB | 24 MB |
| Requires iOS | **13.0** | 26.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Kweather Japan Co.,Ltd.](https://appshunter.io/developer/418296281) | [Kodai Nakade](https://appshunter.io/developer/1679722037) |

## What reviewers say

### CHALK ビジネス専用チャット

[App page](https://appshunter.io/ios/app/chalk/id917242426)

**Features:** macOS Compatibility, Siri integration

**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 CHALK ビジネス専用チャット free?

CHALK ビジネス専用チャット 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 CHALK ビジネス専用チャット or QuizChat/Helpful App for Study have ads?

QuizChat/Helpful App for Study shows ads; CHALK ビジネス専用チャット does not.

### Which is updated more often, CHALK ビジネス専用チャット or QuizChat/Helpful App for Study?

CHALK ビジネス専用チャット ships an update every 5 weeks, and QuizChat/Helpful App for Study every 2 days. Most recently, CHALK ビジネス専用チャット was updated on October 14, 2026 and QuizChat/Helpful App for Study on October 13, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*