# 小易AI vs Nebula Sound

The clearest difference is in-app purchases: 小易AI at none against Nebula Sound's 4. 小易AI also leads on device support (3 vs 1) and iOS requirement (14.0 vs 17.0). On price, update cadence and ads there is nothing between them.

Both are free to download. Nebula Sound sells 4 in-app purchases, starting at $9.99 per month. 小易AI asks for nothing beyond the download.

小易AI ships an update every 5 days, Nebula Sound weekly. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | 小易AI | Nebula Sound |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Weekly |
| Size | 107 MB | 13 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [SoundAI Technology Co.,Ltd](https://appshunter.io/developer/1475331895) | [NEBULA DATA SERVICE PTE. LTD.](https://appshunter.io/developer/6802600348) |

## What reviewers say

### 小易AI

[App page](https://appshunter.io/ios/app/ai/id6469669994)

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

**In-app purchases:** none


### Nebula Sound

[App page](https://appshunter.io/ios/app/nebula-sound/id6802600345)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| GE Basic | $9.99 | per month |
| Basic | $14.99 | per month |
| GE PLUS | $19.99 | per month |
| PLUS | $29.99 | per month |


## Frequently asked questions

### Is 小易AI free?

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

### Is Nebula Sound free?

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

### Do 小易AI or Nebula Sound have ads?

Neither 小易AI nor Nebula Sound shows ads.

### Which is updated more often, 小易AI or Nebula Sound?

小易AI ships an update every 5 days, and Nebula Sound weekly. Most recently, 小易AI was updated on October 30, 2026 and Nebula Sound on October 31, 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.*