IN THE FIELD GUIDE
Form9sudoku
form9sudoku.app
form9 is a shape-based sudoku puzzle app that replaces numbers with nine distinct shapes, maintaining the classic sudoku logic without arithmetic. It offers a calm, accessible, and number-free puzzle experience that works fully offline with no ads or tracking.
THE PRODUCT, BEYOND THE PITCH
Automatically researched · Not editorially reviewed · Sources checked Oct 5, 2026
A good fit for
- Players seeking a quiet, unhurried puzzle experience without ads or tracking, suitable for in-between moments.
Know the limitations
Not confirmed yet.
What you can do
- For users who want a calm, number-free sudoku experience that emphasizes pattern recognition over arithmetic.
- For people who find numbers stressful and prefer a more approachable puzzle format using shapes.
Features
- Achievements system with 40 achievements that do not expire or nag the user.
- A growing library of solving techniques taught with shapes to focus on logic and pattern recognition.
Integrations
Not confirmed yet.
Platforms & data export
- Available on iPhone, iPad, and Android devices via the App Store and Google Play.
THE COST FOR YOUR TEAM
Go beyond the starting price.
Published plan prices for your team size and usage. Results update as you type. Taxes, currency conversion and unlisted add-ons are excluded, and anything the source did not state is called out rather than guessed.
Known monthly subtotal
$0.00/month
1 of 1 tools could not be priced with these inputs, so this is not the full cost.
| Tool / plan | Monthly | Per year | What this assumes |
|---|---|---|---|
| No pricing recorded yet. Check the official site, or ask the owner to add it. | |||
A practical workflow
- Players scan the grid to identify where each shape can go using pattern recognition and deduction.
- Fill the grid shape by shape until the board is complete, focusing on calm and unhurried gameplay.
- New players can start with the beginner’s guide to learn how to solve shape sudoku puzzles.
Based on the sources below. Editorial review does not imply hands-on product testing.
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