# Cantoboard vs KOI Keyboard

The clearest difference is in-app purchases: Cantoboard at none against KOI Keyboard's 10. Cantoboard also leads on device support (3 vs 1) and iOS requirement (13.0 vs 16.0). KOI Keyboard's advantage is update cadence (every 4 days vs every 2 months). On price and ads there is nothing between them.

Both are free to download. KOI Keyboard sells 10 one-off in-app purchases. Cantoboard asks for nothing beyond the download.

Cantoboard ships an update every 2 months, KOI Keyboard every 4 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | Cantoboard | KOI Keyboard |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (5 ratings)](https://appshunter.io/ios/app/cantoboard/id6752963850/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 4 days** |
| Monetization | Free | — |
| Size | 125 MB | 218 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Ching Kit Kwan](https://appshunter.io/developer/1698165338) | [Chi Yu Cheng](https://appshunter.io/developer/1896654870) |

## What reviewers say

### Cantoboard

[App page](https://appshunter.io/ios/app/cantoboard/id6752963850)

This keyboard app offers a seamless typing experience for Cantonese speakers, supporting multiple input methods and intelligent suggestions. It features a familiar interface, predictive text, and error correction for efficient communication.

**Highlights:** Multiple Cantonese input methods (Jyutping, Yale, Cangjie), Intelligent word suggestions and error correction, Mixed Chinese and English input, Familiar iOS-like interface, Tone selection for filtering candidates, Quick deletion and symbol access

**Features:** macOS Compatibility

**In-app purchases:** none


### KOI Keyboard

[App page](https://appshunter.io/ios/app/koi-keyboard/id6789937180)

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 稜鏡主題 | $0.99 | one-time |
| 脈衝主題 | $0.99 | one-time |
| 浮影主題 | $0.99 | one-time |
| 座標主題 | $0.99 | one-time |
| 翹角主題 | $0.99 | one-time |
| 柔丘主題 | $0.99 | one-time |
| 隱翹主題 | $0.99 | one-time |
| 隱翹・律主題 | $0.99 | one-time |
| 隱翹・霓主題 | $0.99 | one-time |
| KOI Keyboard Sizing | $1.99 | one-time |


## Frequently asked questions

### Is Cantoboard free?

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

### Is KOI Keyboard free?

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

### Do Cantoboard or KOI Keyboard have ads?

Neither Cantoboard nor KOI Keyboard shows ads.

### Which is updated more often, Cantoboard or KOI Keyboard?

Cantoboard ships an update every 2 months, and KOI Keyboard every 4 days. Most recently, Cantoboard was updated on October 24, 2026 and KOI Keyboard on October 24, 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.*