# OkidoKey vs CATS Input Method Pro

The clearest difference is in-app purchases: CATS Input Method Pro at none against OkidoKey's 2. OkidoKey's advantage is update cadence (every 3 months vs every 24 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. OkidoKey sells 2 in-app purchases, starting at $2.99 per month. CATS Input Method Pro asks for nothing beyond the download.

OkidoKey ships an update every 3 months, CATS Input Method Pro every 24 months. The most recent releases landed on October 9, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | OkidoKey | CATS Input Method Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (5 ratings)](https://appshunter.io/ios/app/okidokey/id990935790/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 52.8% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 24 months |
| Monetization | Freemium | — |
| Size | 46 MB | 7 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Ethan Liu](https://appshunter.io/developer/348867158) | [YIU LEUNG RANDY CHAN](https://appshunter.io/developer/1474191447) |

## What reviewers say

### OkidoKey

[App page](https://appshunter.io/ios/app/okidokey/id990935790)

This app provides a custom input method keyboard kit for your device. It supports various Chinese input methods and allows for custom installations, offering features like a text editor, auto-copy, and smart punctuation.

**Highlights:** Custom input methods, Physical keyboard support, Text editor with Clip Pad mode, Chinese input methods (Array, Cangjie, Pinyin), Install custom input methods, Smart punctuation, Chinese lexicon and emojis

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Individual - Monthly | $2.99 | per month |
| Individual Plan - Annual | $29.99 | per year |


### CATS Input Method Pro

[App page](https://appshunter.io/ios/app/cats-input-method-pro/id1523143711)

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

**In-app purchases:** none


## Frequently asked questions

### Is OkidoKey free?

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

### Is CATS Input Method Pro free?

CATS Input Method Pro is free to download, with no in-app purchases.

### Do OkidoKey or CATS Input Method Pro have ads?

Neither OkidoKey nor CATS Input Method Pro shows ads.

### Which is updated more often, OkidoKey or CATS Input Method Pro?

OkidoKey ships an update every 3 months, and CATS Input Method Pro every 24 months. Most recently, OkidoKey was updated on October 9, 2026 and CATS Input Method Pro on September 28, 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.*