# 度量衡換算+ vs VoiceTube

The clearest difference is in-app purchases: 度量衡換算+ at none against VoiceTube's 15. 度量衡換算+ also leads on iOS requirement (12.3 vs 15.0). VoiceTube's advantage is ads (none vs shown). On price, rating, review sentiment and ratings volume there is nothing between them.

Both are free to download. VoiceTube sells 14 in-app purchases, starting at $11.99 per month. 度量衡換算+ asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.8 for 度量衡換算+ against 4.7 for VoiceTube. Both are backed by a comparable volume of ratings — 209 and 493 respectively. Written reviews are what separate them: 91% of 度量衡換算+'s written reviews are positive against 85% of VoiceTube's.

度量衡換算+ ships an update every 2 weeks, VoiceTube weekly. The most recent releases landed on October 29, 2026 and November 1, 2026 respectively.

## The numbers

| Metric | 度量衡換算+ | VoiceTube |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (209 ratings)](https://appshunter.io/ios/app/plus/id573539093/reviews)** | [4.7 (493 ratings)](https://appshunter.io/ios/app/voicetube-learn-english/id641446200/reviews) |
| Number of ratings | 209 | **493** |
| Positive reviews | **90.9% of reviews** | 85.4% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | **Weekly** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 9 MB | 102 MB |
| Requires iOS | **12.3** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [109700](https://appshunter.io/developer/573519108) | [REDIDEA CO., LTD.](https://appshunter.io/developer/947321039) |

## What reviewers say

### 度量衡換算+

[App page](https://appshunter.io/ios/app/plus/id573539093)

Easily convert between metric, imperial, and traditional Chinese and Taiwanese units for weight, length, area, volume, and temperature. This app bridges the gap between different measurement systems used in Hong Kong, mainland China, and Taiwan.

**Highlights:** Metric to imperial conversion, Traditional Chinese/Taiwanese unit conversion, Weight, length, area, volume, temperature, Bilingual display (Chinese/English), Covers various regional systems

**Features:** macOS Compatibility

**In-app purchases:** none


### VoiceTube

[App page](https://appshunter.io/ios/app/voicetube-learn-english/id641446200)

Master English pronunciation, vocabulary, grammar, and usage through immersive video content. Improve listening and speaking skills with AI analysis and smart learning tools. Engage in daily speaking challenges and systematic review exercises.

**Highlights:** Learn English with videos, AI Speaking Analysis, Smart Learning Tools, Systematic Review, Daily Speaking Challenge, Bilingual subtitles

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

**In-app purchases (14)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro 1-month Plan | $11.99 | per month |
| Pro 1-month Plan | $15.99 | per month |
| Tier 1 - 1 month subscription | $17.99 | per month |
| Tier 1 - 3 month subscription | $33.99 | per 3 months |
| Pro 12-month Plan | $41.99 | per year |
| Tier 6 - 12 month subscription | $48.99 | per year |
| Hero 1-month Plan | $50.99 | per month |
| Pro 6-month Plan | $52.99 | per 6 months |
| Tier 1 - 12 month subscription | $54.99 | per year |
| Pro 12-month Plan | $69.99 | per year |
| Tier 2 - 12 month subscription | $76.99 | per year |
| Pro 12-month Plan | $95.99 | per year |
| Hero 6-month Plan | $184.99 | per 6 months |
| Hero 12-month Plan | $274.99 | per year |

**What reviewers like**

- 👍 Helpful for learning English
- 🚀 Great learning tool
- 🎉 Interesting and fun
- 💯 Awesome app
- 🌟 Excellent app

**What reviewers complain about**

- 🐛 Crashes/connection issues
- 📱 Lack of iPad support
- 💰 Paid subscription required
- 🔍 Difficult to navigate/find content

**Reported bugs**

- Unable to connect to server
- Playback issues (cutting off words, can't zoom)
- Login problems

**Requested features**

- Offline video download
- Improved search and navigation
- Feedback and scoring on pronunciation
- More language options


## Frequently asked questions

### Is 度量衡換算+ free?

度量衡換算+ is free to download, with no in-app purchases.

### Is VoiceTube free?

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

### Which has better reviews, 度量衡換算+ or VoiceTube?

度量衡換算+ is rated higher. 度量衡換算+ averages 4.8 out of 5 from 209 ratings, while VoiceTube averages 4.7 from 493 ratings.

### Do 度量衡換算+ or VoiceTube have ads?

度量衡換算+ shows ads; VoiceTube does not.

### Which is updated more often, 度量衡換算+ or VoiceTube?

度量衡換算+ ships an update every 2 weeks, and VoiceTube weekly. Most recently, 度量衡換算+ was updated on October 29, 2026 and VoiceTube on November 1, 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.*