# ToneMaster vs duiduidui!

The clearest difference is in-app purchases: ToneMaster at none against duiduidui!'s 2. ToneMaster also leads on update cadence (every 11 days vs every 6 weeks) and device support (3 vs 1). On price and ads there is nothing between them.

Both are free to download. duiduidui! sells 2 in-app purchases, starting at $12.99 per month. ToneMaster asks for nothing beyond the download.

ToneMaster ships an update every 11 days, duiduidui! every 6 weeks. The most recent releases landed on October 16, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | ToneMaster | duiduidui! |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/duiduidui/id6771224415/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 11 days** | Every 6 weeks |
| Monetization | — | Freemium |
| Size | 47 MB | 111 MB |
| Requires iOS | **13.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [佼 李](https://appshunter.io/developer/1830116396) | [Red Thread Labs LLC](https://appshunter.io/developer/1896775112) |

## What reviewers say

### ToneMaster

[App page](https://appshunter.io/ios/app/tonemaster-learn-mandarin/id6755132209)

**Features:** macOS Compatibility

**In-app purchases:** none


### duiduidui!

[App page](https://appshunter.io/ios/app/duiduidui/id6771224415)

This app offers a comprehensive Chinese dictionary with audio and example sentences, plus an AI tutor for grammar and conversation practice. Features include a personal phrasebook, camera translation, and adaptive flashcards to track learning progress. It's designed to adapt to your learning style and grow with you from beginner to fluency.

**Highlights:** Comprehensive Mandarin dictionary, AI tutor for grammar and conversation, Personal phrasebook, Camera-based translation, Adaptive flashcards, Offline functionality, Progress tracking

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $12.99 | per month |
| Annual | $89.99 | per year |


## Frequently asked questions

### Is ToneMaster free?

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

### Is duiduidui! free?

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

### Do ToneMaster or duiduidui! have ads?

Neither ToneMaster nor duiduidui! shows ads.

### Which is updated more often, ToneMaster or duiduidui!?

ToneMaster ships an update every 11 days, and duiduidui! every 6 weeks. Most recently, ToneMaster was updated on October 16, 2026 and duiduidui! on October 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.*