# iSigner vs SignTown Handbook

The clearest difference is review sentiment: SignTown Handbook at 100% against iSigner's 0%. SignTown Handbook also leads on in-app purchases (none vs 1) and update cadence (monthly vs every 5 months). On price, ads, device support and iOS requirement there is nothing between them.

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

iSigner ships an update every 5 months, SignTown Handbook monthly. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | iSigner | SignTown Handbook |
| --- | --- | --- |
| 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 | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 months | **Monthly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 27 MB | 43 MB |
| Requires iOS | **10.0** | 11.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Shanghai Suimeng Cultural Communication Co., Ltd](https://appshunter.io/developer/1438330349) | [BIT STUDIO COMPANY LIMITED](https://appshunter.io/developer/980503561) |

## 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 |


### SignTown Handbook

[App page](https://appshunter.io/ios/app/signtown-handbook/id1643644150)

This educational app uses AI and your device's camera to detect sign language gestures. It aims to advance technology for the Deaf community and increase awareness of Deaf Culture through helpful learning experiences.

**Highlights:** AI gesture detection, On-device machine learning, Privacy-focused (no video upload), Educational content, Deaf Culture awareness, Webcam integration

**In-app purchases:** none


## Frequently asked questions

### Is iSigner free?

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

### Is SignTown Handbook free?

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

### Do iSigner or SignTown Handbook have ads?

Neither iSigner nor SignTown Handbook shows ads.

### Which is updated more often, iSigner or SignTown Handbook?

iSigner ships an update every 5 months, and SignTown Handbook monthly. Most recently, iSigner was updated on November 2, 2026 and SignTown Handbook on November 3, 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.*