# ToneDetector vs Learn Vietnamese

The clearest difference is price: Learn Vietnamese at Free against ToneDetector's $9.99. Learn Vietnamese also leads on update cadence (every 3 months vs every 29 months). ToneDetector's advantage is in-app purchases (none vs 3) and iOS requirement (14.0 vs 16.0). On ads and device support there is nothing between them.

Learn Vietnamese is free to download; ToneDetector costs $9.99 up front. Learn Vietnamese sells 3 in-app purchases, starting at $3.99 per 7 days. ToneDetector asks for nothing beyond the download.

ToneDetector ships an update every 29 months, Learn Vietnamese every 3 months. The most recent releases landed on October 6, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | ToneDetector | Learn Vietnamese |
| --- | --- | --- |
| 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 | 104 MB |
| Requires iOS | **14.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Jian Cheng](https://appshunter.io/developer/495002823) | [Dinh Thang Tran](https://appshunter.io/developer/1769927807) |

## 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 Vietnamese

[App page](https://appshunter.io/ios/app/learn-vietnamese-lingfast/id6771421259)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| LingFast Premium Weekly | $3.99 | per 7 days |
| LingFast Premium Monthly | $8.99 | per month |
| LingFast Premium Yearly | $49.99 | per year |


## Frequently asked questions

### Is ToneDetector free?

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

### Is Learn Vietnamese free?

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

### Do ToneDetector or Learn Vietnamese have ads?

Neither ToneDetector nor Learn Vietnamese shows ads.

### Which is updated more often, ToneDetector or Learn Vietnamese?

ToneDetector ships an update every 29 months, and Learn Vietnamese every 3 months. Most recently, ToneDetector was updated on October 6, 2026 and Learn Vietnamese on October 16, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*