# ToneDetector vs Learn Chinese Slang

The clearest difference is price: Learn Chinese Slang at Free against ToneDetector's $9.99. Learn Chinese Slang also leads on update cadence (every 3 months vs every 29 months). ToneDetector's advantage is in-app purchases (none vs 1). On ads, device support and iOS requirement there is nothing between them.

Learn Chinese Slang is free to download; ToneDetector costs $9.99 up front. Learn Chinese Slang sells 1 one-off in-app purchase. ToneDetector asks for nothing beyond the download.

ToneDetector ships an update every 29 months, Learn Chinese Slang every 3 months. The most recent releases landed on October 30, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | ToneDetector | Learn Chinese Slang |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/tonedetector/id495002820/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 29 months | **Every 3 months** |
| Monetization | Paid | — |
| Size | 28 MB | 50 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jian Cheng](https://appshunter.io/developer/495002823) | [丹丹 王](https://appshunter.io/developer/1636101439) |

## What reviewers say

### ToneDetector

[App page](https://appshunter.io/ios/app/tonedetector/id495002820)

Master Mandarin tones with this intuitive app. Practice pronunciation, compare your pitch contours to samples, and receive immediate visual feedback to improve your speaking accuracy without a tutor. Covers all Mandarin tonal syllables for effective self-assessment.

**Highlights:** Instant tone judgment, Visual pitch contour comparison, Practice all Mandarin tonal syllables, Self-assessment of tone perception, Sample sounds for comparison, Intuitive practice interface

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

**In-app purchases:** none


### Learn Chinese Slang

[App page](https://appshunter.io/ios/app/learn-chinese-slang/id1667866363)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Plan | $2.99 | one-time |


## Frequently asked questions

### Is ToneDetector free?

ToneDetector costs $9.99, with no in-app purchases.

### Is Learn Chinese Slang free?

Learn Chinese Slang is free to download, with in-app purchases available.

### Do ToneDetector or Learn Chinese Slang have ads?

Neither ToneDetector nor Learn Chinese Slang shows ads.

### Which is updated more often, ToneDetector or Learn Chinese Slang?

ToneDetector ships an update every 29 months, and Learn Chinese Slang every 3 months. Most recently, ToneDetector was updated on October 30, 2026 and Learn Chinese Slang on October 27, 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.*