# King Sejong Keyboard vs keyPlex

The clearest difference is price: keyPlex at Free against King Sejong Keyboard's $27.00. King Sejong Keyboard's advantage is in-app purchases (none vs 2) and iOS requirement (15.6 vs 17.6). On update cadence, ads and device support there is nothing between them.

keyPlex is free to download; King Sejong Keyboard costs $27.00 up front. keyPlex sells 2 in-app purchases, starting at $3.99 per year. King Sejong Keyboard asks for nothing beyond the download.

King Sejong Keyboard ships an update fortnightly, keyPlex every 3 weeks. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | King Sejong Keyboard | keyPlex |
| --- | --- | --- |
| Price | $27.00 | **Free** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Monetization | Paid | — |
| Size | 67 MB | 4 MB |
| Requires iOS | **15.6** | 17.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [TeraBaTek Co., Ltd](https://appshunter.io/developer/1625214140) | [Eugen Gabriel](https://appshunter.io/developer/1881729493) |

## What reviewers say

### King Sejong Keyboard

[App page](https://appshunter.io/ios/app/king-sejong-keyboard/id6445901835)

Experience a faster, more accurate typing experience with a customizable keyboard. Design your layout, choose colors and fonts, and utilize quick-type features for increased productivity. It prioritizes user privacy and offers a smart typing solution.

**Highlights:** Shift-less keyboard layout, Customizable key layouts and screen settings, Personalized colors and fonts, QuickType settings for rapid access, Save favorite texts and images, Multi-language support with Korean layouts

**In-app purchases:** none


### keyPlex

[App page](https://appshunter.io/ios/app/keyplex-passwort-manager/id6759933375)

**Features:** Family Sharing

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| keyPlex Premium | $3.99 | per year |
| keyPlex Premium (Lifetime) | $14.99 | one-time |


## Frequently asked questions

### Is King Sejong Keyboard free?

King Sejong Keyboard costs $27.00, with no in-app purchases.

### Is keyPlex free?

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

### Do King Sejong Keyboard or keyPlex have ads?

Neither King Sejong Keyboard nor keyPlex shows ads.

### Which is updated more often, King Sejong Keyboard or keyPlex?

King Sejong Keyboard ships an update fortnightly, and keyPlex every 3 weeks. Most recently, King Sejong Keyboard was updated on October 24, 2026 and keyPlex on October 25, 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.*