We’re excited to announce the launch of the web version of Puzzle Calculator, a brain-training app that lets you enjoy the act of calculation itself through creative customization.
Unlike ordinary calculators, this app was built on a unique concept — you can freely arrange calculator buttons like puzzle pieces. It’s a new-generation edutainment (education × entertainment) tool designed for both learning and fun.
The web version is now available for free at:
👉 https://calc.inccc.jp/
Main Features of “Puzzle Calculator”
■ Fully Customizable Button Layout
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Drag & Drop to Rearrange
Long-press and move any button to rearrange freely. Place your most-used buttons up front and rarely used ones further back to create your own perfect layout. -
Automatic Layout Saving
Your custom layout is saved automatically and restored the next time you open the app. -
Smooth Two-Finger Scrolling
The button area supports two-finger scrolling for comfortable operation, optimized for portrait use. -
Adjustable Grid (3 – 7 Columns)
Choose between 3–4 columns for smartphones or 5–7 for tablets to match your screen size perfectly.
■ Split the Screen Like a Puzzle – Use Multiple Calculators at Once
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Display Up to 12 Calculators Simultaneously
The screen can be divided into 3 rows × 4 columns, allowing up to 12 calculators at once. Great for handling currency conversion, sales calculation, and verification side-by-side. -
Best on Foldables & Tablets
On large screens, you can easily compare multiple calculators simultaneously — just like solving a puzzle by rearranging panels.
■ 53 Built-in Calculation Functions
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From Basic to Scientific
Includes arithmetic, trigonometric (sin/cos/tan), logarithmic (log/ln), power (^), factorial (!), and permutation/combination (nPr/nCr) functions — pick only the ones you need. -
Remainder Calculation Mode
Easily compute integer remainders like “10 ÷ 6 = 1 … 4.” Useful for daily life and programming study. -
Degrees ↔ Radians Switch
Instantly toggle between Degrees and Radians in trigonometric functions.
■ Global Language & Locale Support
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17 Languages Supported
Japanese, English, Simplified & Traditional Chinese, Spanish, French, German, Korean, Arabic, Hindi, and more. -
Automatic Formatting for 150 + Countries
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US style : 1,234,567.89
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German style : 1.234.567,89
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French style : 1 234 567,89
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Indian style : 12,34,567.89 (lakh system)
The display automatically adapts to your selected region.
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Alternative Numeral Display
Supports not only Arabic numerals but also Kanji, Eastern Arabic, Thai, and Devanagari digits.
■ Accessibility for Everyone
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Text-to-Speech (TTS)
• Button Speech – Reads aloud each button as you press it.
• Result Speech – Automatically announces the calculation result. -
19 Selectable Sound Effects
Choose your preferred key-click sounds for a more enjoyable experience. -
High Contrast Theme
Improves visibility for users with low vision.
■ 6 Preset Themes + Custom Colors
Default – Modern blue design (Recommended)
Dark – Deep tones and primary colors
Colorful – Vivid rainbow palette
Pastel – Soft and gentle colors
High Contrast – Black & White with yellow accents
Minimal – Elegant grayscale
You can also customize the color of numeric, operator, and function keys individually — like changing outfits for your calculator every day.
Practical Use Cases
📊 Business
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Handle multiple quotes in parallel
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Perform currency and sales calculations simultaneously
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Display multiple calculators during meetings on large screens
📚 Education
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Ideal for math and physics formulas using scientific functions
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Test different methods across multiple calculators
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Accessible for visually impaired students via speech output
🧮 Everyday Life
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Calculate total and discounted prices separately
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Use remainder mode for sharing items or time division
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Show only your frequently used buttons for simplicity
🎮 Playful Puzzle Experience
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Reorder buttons to train your brain
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Layout changes stimulate cognitive activity and memory
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Switch themes to refresh your mood
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Customize screen division like assembling a puzzle
Development Background & Future Plans
“Puzzle Calculator” was developed by Cc Inc. using Flutter, based on the philosophy of bringing “intellectual joy into everyday life.”
Traditional calculators were merely “tools for computation.”
This app focuses on enjoying the process of calculation itself and the fun of personal customization.
Drag & drop buttons, split the screen, and operate like a puzzle game — making math an interactive experience.
The Android and iOS versions will be released soon to reach more users worldwide.
Summary
“Puzzle Calculator” is a new-style, fully customizable calculator app that lets you design your own way to calculate.
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Drag & Drop for free button placement
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Use up to 12 calculators on a split screen
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Choose from 53 calculation functions
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Accessibility features with speech and sound support
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17 languages and 150 + regional formats supported
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6 themes + custom colors for daily fun
Try it today and build your very own calculator!
👉 https://calc.inccc.jp/
We welcome your feedback and suggestions.
Contact Us
Cc Inc.
Web: https://inccc.jp/
Blog: https://inccc.jp/blog-2/