Comparison

Slyder vs King Sejong Keyboard

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Slyder

Enhance your typing experience with a customizable keyboard offering extensive gesture controls for navigation, deletion, and text manipulation. It supports multiple languages and offers personalized themes and feedback options.

Highlights
  • Extensive gesture controls
  • Multi-language support
  • Customizable themes
  • Emoji recommendations
  • Copy/paste history
  • Adjustable keyboard height
Features
Read full description

Slyder is a lightweight keyboard built around gestures — slide anywhere to move the cursor, drag the delete key to erase and undo, and keep the tools you actually use one tap above the keys. TYPE IN 38 LANGUAGES Japanese かな 12-key flick and ローマ字 with kana→kanji conversion. Chinese 简体拼音 and 注音. Arabic, Hebrew, Persian and Urdu with full right-to-left layouts. Hindi, Bengali, Tamil, Telugu, Thai, Greek, Korean, English and many more — every one with the same gestures. GESTURES THAT SAVE TAPS - Slide anywhere on the keys to move the cursor, letter by letter - Drag the space bar to move word by word - Drag delete left to erase, right to bring it back - Swipe down to dismiss, swipe up for the number row MAKE IT YOURS - Themes matched to your iPhone color, or a gradient you build yourself - Choose the font your keys are drawn in - An extra row of favorites — buttons, phrases, links, folders - Adjustable keyboard height TOOLS BUILT IN - Clipboard history and a one-tap paste button - Emoji and emoticon suggestions that learn as you type - Cool Fonts and Fun Text - Generative AI with web search - Insights into how you type iCLOUD BACKUP Settings, folders, colors, clipboard, emoji and stats back up to your own iCloud and restore onto a new iPhone in one tap. ON iPAD A native iPad layout with a full number row and Apple-parity key sizing. Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

King Sejong Keyboard

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
Read full description

King Sejong Keyboard never collects your personal or sensitive information. Experience a new, faster way to type on your mobile keyboard without the need for the shift key with the King Sejong Keyboard! It offers professional-grade typing, accurate input, fast typing, and the freedom to design according to your personality. King Sejong Keyboard offers a variety of keyboard arrangements, customizable key layouts, screen layout settings, favorite images, favorite texts, and more to customize your typing experience for different environments and personalities. Common problems with traditional mobile keyboards include typing errors and double entries, slow typing, keyboard freezes, and some mobile keyboards auto-correct typing errors and convert them into unintended words. These issues often slowed down productivity and caused stress when typing. However, King Sejong Keyboard has researched and reflected the latest technologies, trends, and cognitive engineering techniques to ensure accurate input, and it can increase productivity by providing a customized experience with fast input speed and various functions. In addition, it can be used as a keyboard that meets the user's preferences through various designs and optional features. Experience a smart typing experience in the age of AI with King Sejong Keyboard. [Key Features] - King Sejong Keyboard Layout King Sejong Keyboard is a shift-less keyboard. It provides a more intuitive and faster keyboard layout and a variety of keyboard layouts that can be easily used in various cognitive structures and environments, providing users with a new, future-proof keyboard. - Language settings You can set the primary and secondary language to customize your experience. We offer 5 different keyboard layouts in Korean, so you can choose the one that suits your needs. - Screen layout - You can set the position of the primary language on the right or left when using landscape mode, making it convenient for both right and left-handed users. - Colors and fonts The keyboard color offers eight default colors, and you can customize the background color of the keyboard and button colors to suit your mood. You can also specify a bold font weight to give your keyboard a sharper look. - QuickType settings The quick keyboard setting function provides a convenient patented technology that allows you to easily access frequently used characters through the left and right sliding function by adding numbers + desired symbols, emoji, and diacritic in the place of the default number for quick typing. - Favorite text and images - This is an innovative feature that allows you to pre-register frequently used addresses, account numbers, phone numbers, and images to enter sentences with just one touch when typing. This is a very useful feature that is perfect for a lifestyle that involves various deliveries, transfers, and contact exchanges these days. [Official website] http://www.kingsejong.net

Screenshots

Slyder4 screens
King Sejong Keyboard4 screens

Verdict

The call

The clearest difference is price: Slyder at Free against King Sejong Keyboard's $27.00. Slyder also leads on ads (none vs shown). King Sejong Keyboard's advantage is in-app purchases (none vs 12) and review sentiment (100% vs 69%). On update cadence, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Slyder is free to download; King Sejong Keyboard costs $27.00 up front. Slyder sells 12 in-app purchases, starting at $0.99 per month. King Sejong Keyboard asks for nothing beyond the download.

UpkeepUpdate frequency

Slyder ships an update every 10 days, King Sejong Keyboard fortnightly. The most recent releases landed on September 24, 2026 and July 5, 2026 respectively.

Scorecard5 real differences · 5 level
Slyder versus King Sejong Keyboard: the parameters behind the verdict, then further details
ParameterSlyderKing Sejong Keyboard
PriceFree — better$27.00
Rating4.5 (1.6K ratings) — better—
Positive reviews68.6% of reviews100.0% of reviews — better
Number of ratings1.6K — better—
Update frequencyEvery 10 days — betterFortnightly
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
DevicesiPhone, iPadiPhone, iPod
Requires iOS16.015.6 — better
Further details — not scored
Size191 MB67 MB
Age rating4+4+
DeveloperChiho ChunTeraBaTek Co., Ltd

Customer experience

Slyder

All ratings1,649 ratings
Positive88.4%
Neutral5.0%
Negative6.5%
Written reviews261 reviews
Positive68.6%
Neutral11.5%
Negative19.9%

King Sejong Keyboard

Written reviews7 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Slyder

Reported bugs

4 issues
  • Keyboard sometimes switches to default iOS keyboard unexpectedly
  • Haptic feedback issues, sometimes stops working
  • Keyboard not working properly in certain apps like Chrome and Safari
  • Issues with the keyboard when using the emoji/special character section

Requested features

5 requests
  • Add autocorrect and text prediction features
  • Allow customizing the favorite bar when switching keyboard layers
  • Add support for more languages like Japanese, Chinese, and Urdu
  • Improve stability and reduce bugs
  • Allow disabling the full access permission request

King Sejong Keyboard

Not enough reviews yet to summarise bugs or requests.

In-app purchases

12 purchases

Slyder

Subscriptions5
  • Plus$0.991 Month
  • Premium$3.997 Days
  • Plus$7.991 Year
Show 2 more
  • Premium$9.991 Month
  • Premium$59.991 Year
One-time7
  • Support $0.99$0.99
  • Support $1.99$1.99
  • Support $2.99$2.99
Show 4 more
  • Support $4.99$4.99
  • Support $9.99$9.99
  • Support $29.99$29.99
  • Support $99.99$99.99
None

King Sejong Keyboard

No in-app purchases

Questions

Is Slyder free?
Slyder is free to download, with in-app purchases available.
Is King Sejong Keyboard free?
King Sejong Keyboard costs $27.00, with no in-app purchases.
Do Slyder or King Sejong Keyboard have ads?
King Sejong Keyboard shows ads; Slyder does not.
Which is updated more often, Slyder or King Sejong Keyboard?
Slyder ships an update every 10 days, and King Sejong Keyboard fortnightly. Most recently, Slyder was updated on September 24, 2026 and King Sejong Keyboard on July 5, 2026.

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