# HyperSound vs AI签字软件

The clearest difference is in-app purchases: HyperSound at none against AI签字软件's 1. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. AI签字软件 sells 1 in-app purchase, starting at $0.99 per 7 days. HyperSound asks for nothing beyond the download.

## The numbers

| Metric | HyperSound | AI签字软件 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 10 days | — |
| Size | 315 MB | 13 MB |
| Requires iOS | **15.1** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jiafan Yong](https://appshunter.io/developer/1476403506) | [锋 李](https://appshunter.io/developer/1578485478) |

## What reviewers say

### HyperSound

[App page](https://appshunter.io/ios/app/hypersound/id6743402135)

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

**In-app purchases:** none


### AI签字软件

[App page](https://appshunter.io/ios/app/ai/id6780721475)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 签字包周Pro | $0.99 | per 7 days |


## Frequently asked questions

### Is HyperSound free?

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

### Is AI签字软件 free?

AI签字软件 is free to download, with in-app purchases available.

### Do HyperSound or AI签字软件 have ads?

Neither HyperSound nor AI签字软件 shows ads.

---

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