# KotoKey vs MozcCo

The clearest difference is update cadence: MozcCo at every 2 days against KotoKey's weekly. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. KotoKey sells 1 one-off in-app purchase and MozcCo sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

KotoKey ships an update weekly, MozcCo every 2 days. The most recent releases landed on October 31, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | KotoKey | MozcCo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (8 ratings)](https://appshunter.io/ios/app/kotokey-custom-keyboard/id6779455087/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Weekly | **Every 2 days** |
| Monetization | Free with in-app purchases | — |
| Size | 66 MB | 60 MB |
| Requires iOS | 17.5 | **17.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Natsumi Hayakawa](https://appshunter.io/developer/6779455089) | [Masaru Sadahisa](https://appshunter.io/developer/6811244751) |

## What reviewers say

### KotoKey

[App page](https://appshunter.io/ios/app/kotokey-custom-keyboard/id6779455087)

Personalize your typing experience with custom themes and satisfying mechanical keyboard sounds. This utility app offers predictive suggestions and text replacements for faster input, making every keystroke feel more comfortable and unique.

**Highlights:** Mechanical keyboard sound effects, Customizable keyboard themes, Predictive text suggestions, Text replacement for phrases, Auto Shift and Smart Apostrophe, English QWERTY and Japanese input

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| KotoKey Premium | $2.99 | one-time |


### MozcCo

[App page](https://appshunter.io/ios/app/mozcco/id6811244749)

**Features:** iPhone Duo support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MozcCo 広告なし | $11.99 | one-time |


## Frequently asked questions

### Is KotoKey free?

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

### Is MozcCo free?

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

### Do KotoKey or MozcCo have ads?

Both KotoKey and MozcCo show ads.

### Which is updated more often, KotoKey or MozcCo?

KotoKey ships an update weekly, and MozcCo every 2 days. Most recently, KotoKey was updated on October 31, 2026 and MozcCo on November 6, 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.*