# iSigner vs 特酷

The clearest difference is in-app purchases: 特酷 at none against iSigner's 1. 特酷 also leads on update cadence (every 2 weeks vs every 5 months). iSigner's advantage is iOS requirement (10.0 vs 12.0). On price, ads and device support there is nothing between them.

Both are free to download. iSigner sells 1 one-off in-app purchase. 特酷 asks for nothing beyond the download.

iSigner ships an update every 5 months, 特酷 every 2 weeks. The most recent releases landed on November 2, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | iSigner | 特酷 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (2 ratings)](https://appshunter.io/ios/app/isigner/id1438330350/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 27 MB | 60 MB |
| Requires iOS | **10.0** | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Shanghai Suimeng Cultural Communication Co., Ltd](https://appshunter.io/developer/1438330349) | [Shandong New Century Network Education Co.,Ltd.](https://appshunter.io/developer/1175956832) |

## What reviewers say

### iSigner

[App page](https://appshunter.io/ios/app/isigner/id1438330350)

This app provides the world's first and only comprehensive Shanghai sign language dictionary. It features a vocabulary of 4000 signs derived from extensive video content, influencing sign languages across China and other Asian regions.

**Highlights:** Shanghai sign language dictionary, 4000 video signs, Influential sign language variant, Comprehensive vocabulary

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 上海手语常用词库 | $12.99 | one-time |


### 特酷

[App page](https://appshunter.io/ios/app/id1620859520)

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

**In-app purchases:** none


## Frequently asked questions

### Is iSigner free?

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

### Is 特酷 free?

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

### Do iSigner or 特酷 have ads?

Neither iSigner nor 特酷 shows ads.

### Which is updated more often, iSigner or 特酷?

iSigner ships an update every 5 months, and 特酷 every 2 weeks. Most recently, iSigner was updated on November 2, 2026 and 特酷 on November 7, 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.*