# 音书AI训练 vs TouchSounds

The clearest difference is in-app purchases: 音书AI训练 at none against TouchSounds's 2. 音书AI训练 also leads on update cadence (every 4 days vs every 11 days) and iOS requirement (11.0 vs 13.0). On price, ads and device support there is nothing between them.

Both are free to download. TouchSounds sells 2 one-off in-app purchases. 音书AI训练 asks for nothing beyond the download.

音书AI训练 ships an update every 4 days, TouchSounds every 11 days. The most recent releases landed on September 8, 2026 and August 20, 2026 respectively.

## The numbers

| Metric | 音书AI训练 | TouchSounds |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/touchsounds/id6466455266/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 11 days |
| Monetization | — | Free with in-app purchases |
| Size | 17 MB | 31 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Guangzhou Voibook Technology Co., Ltd](https://appshunter.io/developer/1188210982) | [祖铁 程](https://appshunter.io/developer/1184150472) |

## What reviewers say

### 音书AI训练

[App page](https://appshunter.io/ios/app/ai/id1467877301)

**Features:** macOS Compatibility

**In-app purchases:** none


### TouchSounds

[App page](https://appshunter.io/ios/app/touchsounds/id6466455266)

This app translates sounds into text in real-time and converts text into speech with adjustable speed and pitch. It also expresses sound through phone vibrations and offers a tactile ASMR experience. Users can record sounds and interact with a virtual pet.

**Highlights:** Real-time sound to text translation, Text to speech with adjustable voice, Sound vibration feedback, Tactile ASMR experiences, Real-time sound recording, Virtual pet interaction

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| One Year VIP Membership | $2.99 | one-time |
| Permanent VIP Membership | $3.99 | one-time |


## Frequently asked questions

### Is 音书AI训练 free?

音书AI训练 is free to download, with no in-app purchases.

### Is TouchSounds free?

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

### Do 音书AI训练 or TouchSounds have ads?

Neither 音书AI训练 nor TouchSounds shows ads.

### Which is updated more often, 音书AI训练 or TouchSounds?

音书AI训练 ships an update every 4 days, and TouchSounds every 11 days. Most recently, 音书AI训练 was updated on September 8, 2026 and TouchSounds on August 20, 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.*