King Sejong Keyboard vs ElectroCalc Pro
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
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.
- 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
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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
ElectroCalc Pro
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ElectroCalc Pro is the essential utility for electronics engineers and hobbyists. Simplify your daily circuit calculations with this powerful tool. [Key Features] 1. Basic Electronics - LED Resistor Calculator - Voltage Divider Calculator (Vin, R1, R2, Vout) - LM317 Voltage Regulator Calculator 2. Power & Cables - Ohm's Law Calculator (Voltage, Current, Resistance, Power) - AWG (American Wire Gauge) Table & Conversion 3. Battery Tools - Battery Runtime Calculator - Battery Configuration Calculator (Series / Parallel) 4. PCB Tools - PCB Trace Width & Resistance Calculations
Screenshots
Verdict
The clearest difference is price: ElectroCalc Pro at Free against King Sejong Keyboard's $27.00. King Sejong Keyboard's advantage is in-app purchases (none vs 1) and ads (none vs shown). On device support and iOS requirement there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
ElectroCalc Pro is free to download; King Sejong Keyboard costs $27.00 up front. ElectroCalc Pro sells 1 one-off in-app purchase. King Sejong Keyboard asks for nothing beyond the download.
King Sejong Keyboard ships an update fortnightly, ElectroCalc Pro every 3 months. Both last shipped on October 24, 2026.
| Parameter | King Sejong Keyboard | ElectroCalc Pro |
|---|---|---|
| Price | $27.00 | Free β better |
| Positive reviews | 100.0% of reviews | β |
| Update frequency | Fortnightly β better | Every 3 months |
| Ads | No β better | Yes |
| In-app purchases | No β better | Yes |
| Monetization | Paid | β |
| Devices | iPhone, iPod | iPhone, iPad, iPod β better |
| Requires iOS | 15.6 | 15.0 β better |
| Further details β not scored | ||
| Size | 67 MB | 27 MB |
| Age rating | 4+ | 4+ |
| Developer | TeraBaTek Co., Ltd | DONGSOO LEE |
In-app purchases
King Sejong Keyboard
No in-app purchases
ElectroCalc Pro
- Remove Ads$1.99
Questions
Is King Sejong Keyboard free?
Is ElectroCalc Pro free?
Do King Sejong Keyboard or ElectroCalc Pro have ads?
Which is updated more often, King Sejong Keyboard or ElectroCalc Pro?
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