# AI先生　英検３級 vs Thinkzo

The clearest difference is in-app purchases: AI先生　英検３級 at none against Thinkzo's 2. Thinkzo's advantage is ads (none vs shown) and iOS requirement (15.0 vs 17.6). On price and device support there is nothing between them.

Both are free to download. Thinkzo sells 2 in-app purchases, starting at $2.99 per month. AI先生　英検３級 asks for nothing beyond the download.

## The numbers

| Metric | AI先生　英検３級 | 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 11 days |
| Monetization | — | Free |
| Size | 4 MB | 51 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [reiko hori](https://appshunter.io/developer/1777370692) | [Gang Wu](https://appshunter.io/developer/1832307850) |

## What reviewers say

### AI先生　英検３級

[App page](https://appshunter.io/ios/app/ai/id6738570477)

**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 AI先生　英検３級 free?

AI先生　英検３級 is free to download, with no in-app purchases.

### Is Thinkzo free?

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

### Do AI先生　英検３級 or Thinkzo have ads?

AI先生　英検３級 shows ads; Thinkzo does not.

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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.*