Sumi: Zen Sudoku is made and published by Karan Sharma. AppBrain is an independent app data site and isn't affiliated with Karan Sharma. The app name, icon, screenshots and description belong to Karan Sharma and are shown as published on the App Store.
AppBrain's verdict
- Last updated
- July 26, 2026
Rankings
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Releases
Updates seen on the App Store- Version
- 1.4
- Launched
- May 2026
No changelog data
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Technology
Found in the app by AppBrain- Price
- Free
- App size
- 78.0 MB
- Content rating
- Everyone
Technologies used by Sumi: Zen Sudoku
About the app and developer
About Sumi: Zen Sudoku
Sumi: Zen Sudoku is a games app developed by Karan Sharma.
User Ratings
The app has no ratings yet.
App Information
Sumi: Zen Sudoku is freely available from the App Store. The app size is 78.04 MB. The latest version available is 1.4. The last update was on July 26, 2026.
Technical Requirements
The app has a content rating of Everyone. The app has been available on the App Store since May 2026.
Developer information for Karan Sharma
Address:
Frequently asked questions about Sumi: Zen Sudoku
Is Sumi: Zen Sudoku free?
Yes. Sumi: Zen Sudoku is free on the App Store.
Is Sumi: Zen Sudoku still available?
Yes. Sumi: Zen Sudoku is on the App Store, and the last update we saw was on July 26, 2026.
How large is Sumi: Zen Sudoku?
Sumi: Zen Sudoku is 78.04 MB.
Is Sumi: Zen Sudoku suitable for children?
App Store rates the content of Sumi: Zen Sudoku as suitable for everyone.
Who made Sumi: Zen Sudoku?
Sumi: Zen Sudoku was developed by Karan Sharma. It is listed in the games category on the App Store.
What are the best alternatives to Sumi: Zen Sudoku?
People looking at Sumi: Zen Sudoku also look at these games apps: Sudoku Ritual, Baby Pet Newborn Salon Care, Cat Merge Town, Heroes vs Crazy Wiggler, PIXPIX: Make my Avatar.
Store listing
By Karan Sharma, from the App Store
Description by Karan Sharma Written by the developer, not by AppBrain. Click to read.
No leaderboards. No streaks that shame you. No timers ticking in your face. Just a nine by nine grid, drawn in warm ink on washipaper, waiting for your next move.
FIVE LEVELS OF PRACTICE
Five difficulties, from your first quiet solve to the edge of mastery. Each level is a different conversation with the grid.
1. Easy and Medium: unhurried, forgiving.
2. Hard: where focus begins to matter.
3. Master and Edo: for those who have earned stillness.
A DAILY HABIT
Open Sumi each day. Solve one puzzle. Watch your streak grow, your times sharpen. The Practice Log tracks your progress with a clean improvement curve. No gamification. Just the graph.
YOUR SEASON, YOUR PALETTE
Choose a season at first launch: Spring, Summer, Autumn, or Winter. Each shifts the accent colour that breathes through the interface. Change it anytime in Settings.
SUMI PRO - Unlock the full practice:
1. The Library: a curated collection of passages from Zen masters, philosophers, and makers. One surfaces each day.
2. Design Zen Sudoku: build a print-ready A5 puzzle book. Pick your difficulty mix, your paper colour, your ink. Export as PDF and
print.
3. Full improvement history and personal bests at every difficulty.
4. No Ads
One-time purchase. No subscription. No renewal.
ABOUT THE NAME
墨 (sumi) is the ink used in traditional Japanese calligraphy and sumi-e painting. Ground from a solid inkstick, mixed with water, applied with patience. The name describes the aesthetic: deliberate, unhurried, lasting.
Ink on paper. No chrome. No noise. Nine by nine, every day.