# AI Vocab Note vs Tangoi

The clearest difference is in-app purchases: AI Vocab Note at none against Tangoi's 3. Tangoi's advantage is ads (none vs shown) and update cadence (every 2 days vs every 4 weeks). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Tangoi sells 3 in-app purchases, starting at $1.99 per 7 days. AI Vocab Note asks for nothing beyond the download.

AI Vocab Note ships an update every 4 weeks, Tangoi every 2 days. Both last shipped on November 5, 2026.

## The numbers

| Metric | AI Vocab Note | Tangoi |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/ai-vocab-note/id6747324871/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 4 weeks | **Every 2 days** |
| Monetization | Ad-supported | — |
| Size | 16 MB | 3 MB |
| Requires iOS | **17.6** | 18.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [takeshi ogawa](https://appshunter.io/developer/1676749157) | [Jorge Mattei](https://appshunter.io/developer/891902395) |

## What reviewers say

### AI Vocab Note

[App page](https://appshunter.io/ios/app/ai-vocab-note/id6747324871)

Build a custom vocabulary notebook with AI-powered definitions and explanations tailored to your learning style. Easily add new words through typing or image recognition, and organize them into folders for efficient study.

**Highlights:** AI-generated definitions, Customizable explanation styles, Image recognition for word input, Vertical text detection, Folder organization, Editable explanations

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

**In-app purchases:** none


### Tangoi

[App page](https://appshunter.io/ios/app/tangoi/id6760378966)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $1.99 | per 7 days |
| Monthly | $4.99 | per month |
| Yearly | $39.99 | per year |


## Frequently asked questions

### Is AI Vocab Note free?

AI Vocab Note is free to download, with no in-app purchases.

### Is Tangoi free?

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

### Do AI Vocab Note or Tangoi have ads?

AI Vocab Note shows ads; Tangoi does not.

### Which is updated more often, AI Vocab Note or Tangoi?

AI Vocab Note ships an update every 4 weeks, and Tangoi every 2 days. Most recently, AI Vocab Note was updated on November 5, 2026 and Tangoi on November 5, 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.*