# BasicClassForJ3：中3基礎クイズ vs Thinkzo

The clearest difference is in-app purchases: BasicClassForJ3：中3基礎クイズ at none against Thinkzo's 2. Thinkzo's advantage is ads (none vs shown) and update cadence (every 11 days vs every 2 months). On price there is nothing between them.

Both are free to download. Thinkzo sells 2 in-app purchases, starting at $2.99 per month. BasicClassForJ3：中3基礎クイズ asks for nothing beyond the download.

BasicClassForJ3：中3基礎クイズ ships an update every 2 months, Thinkzo every 11 days. The most recent releases landed on September 10, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | BasicClassForJ3：中3基礎クイズ | Thinkzo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/thinkzo-ai-homework-helper/id6759196682/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 11 days** |
| Monetization | — | Free |
| Size | 4 MB | 46 MB |
| Requires iOS | 17.5 | **13.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Ayako Asayama](https://appshunter.io/developer/1702795563) | [Gang Wu](https://appshunter.io/developer/1832307850) |

## What reviewers say

### BasicClassForJ3：中3基礎クイズ

[App page](https://appshunter.io/ios/app/basicclassforj33/id6747634565)

**Features:** macOS Compatibility

**In-app purchases:** none


### Thinkzo

[App page](https://appshunter.io/ios/app/thinkzo-ai-homework-helper/id6759196682)

Instantly solve homework problems by taking a photo. Get step-by-step explanations, generate practice questions, and receive instant AI grading with feedback. Supports multiple languages and subjects for students of all levels.

**Highlights:** AI-powered photo problem solver, Step-by-step solution explanations, Generate custom practice questions, Instant homework grading and feedback, Multi-language support, Privacy editor for sensitive information, Bookmark and save solutions

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $2.99 | per month |
| Premium Annual | $29.99 | per year |


## Frequently asked questions

### Is BasicClassForJ3：中3基礎クイズ free?

BasicClassForJ3：中3基礎クイズ is free to download, with no in-app purchases.

### Is Thinkzo free?

Thinkzo is free to download, with in-app purchases available.

### Do BasicClassForJ3：中3基礎クイズ or Thinkzo have ads?

BasicClassForJ3：中3基礎クイズ shows ads; Thinkzo does not.

### Which is updated more often, BasicClassForJ3：中3基礎クイズ or Thinkzo?

BasicClassForJ3：中3基礎クイズ ships an update every 2 months, and Thinkzo every 11 days. Most recently, BasicClassForJ3：中3基礎クイズ was updated on September 10, 2026 and Thinkzo on September 11, 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.*