# Sixfast vs 音频变调

The clearest difference is in-app purchases: 音频变调 at none against Sixfast's 10. Sixfast's advantage is ads (none vs shown) and update cadence (every 3 weeks vs every 6 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Sixfast sells 7 in-app purchases, starting at $6.99 per month. 音频变调 asks for nothing beyond the download.

Sixfast ships an update every 3 weeks, 音频变调 every 6 months. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Sixfast | 音频变调 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (238 ratings)](https://appshunter.io/ios/app/sixfast/id1511888409/reviews)** | — |
| Number of ratings | **238** | — |
| Positive reviews | 76.2% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 3 weeks** | Every 6 months |
| Monetization | Free with in-app purchases | — |
| Size | 160 MB | 9 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Chengdu Chaoyoumao Technology Co.,Ltd](https://appshunter.io/developer/1539126185) | [文利 罗](https://appshunter.io/developer/1743701483) |

## What reviewers say

### Sixfast

[App page](https://appshunter.io/ios/app/sixfast/id1511888409)

This app provides professional network acceleration for overseas Chinese, students, and workers. It resolves high latency issues when accessing domestic Chinese networks, ensuring smooth streaming, music listening, and gaming experiences.

**Highlights:** Accelerate domestic video platforms, Stream music and live content, Dedicated lines for Chinese game servers, Multi-device compatibility, Smart traffic routing, Low latency for popular games

**Features:** Vision Pro support

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VIP连续包月 | $6.99 | per month |
| VIP包月套餐 | $7.49 | per month |
| VIP连续包月 | $7.79 | per month |
| SVIP连续包月 | $11.99 | per month |
| SVIP连续包月 | $12.49 | per month |
| VIP月卡 | $7.99 | one-time |
| SVIP月卡 | $12.99 | one-time |

**What reviewers like**

- 🚀 Fast and stable connection
- 👍 Solves region restrictions
- 🎮 Improves gaming performance
- 📺 Enables access to domestic content
- 🎵 Unblocks music streaming

**What reviewers complain about**

- 📉 Increased latency for some users
- 💸 Expensive pricing
- ❌ Inconsistent performance
- 🚫 Not working for certain games/apps
- ⚠️ Login issues

**Reported bugs**

- Cannot connect on mobile
- Slow internet speed after connection
- Game acceleration not working after updates
- Login failures with WeChat
- Subscription not recognized

**Requested features**

- Add more supported games/apps
- Improve desktop client functionality
- Offer more flexible pricing options
- Increase server stability in certain regions
- Add landscape mode support


### 音频变调

[App page](https://appshunter.io/ios/app/id6504414023)

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

**In-app purchases:** none


## Frequently asked questions

### Is Sixfast free?

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

### Is 音频变调 free?

音频变调 is free to download, with no in-app purchases.

### Do Sixfast or 音频变调 have ads?

音频变调 shows ads; Sixfast does not.

### Which is updated more often, Sixfast or 音频变调?

Sixfast ships an update every 3 weeks, and 音频变调 every 6 months. Most recently, Sixfast was updated on November 3, 2026 and 音频变调 on October 30, 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.*