Sudoku Coach: Trainer is made and published by Feifei Song. AppBrain is an independent app data site and isn't affiliated with Feifei Song. The app name, icon, screenshots and description belong to Feifei Song and are shown as published on the App Store.

About Sudoku Coach: Trainer

Sudoku Coach: Trainer is an education app developed by Feifei Song.

User Ratings

Sudoku Coach: Trainer is rated 4.25 out of 5 stars. The rating is based on 4 ratings.

App Information

Sudoku Coach: Trainer is freely available from the App Store. The app size is 17.49 MB. The latest version available is 1.9. The last update was on October 3, 2026.

Technical Requirements

The app has a content rating of Everyone. The app has been available on the App Store since March 2026.

Description by Feifei Song (from the App Store)

Learn the logic behind your next Sudoku move.

Work through guided technique lessons, understand the reasoning in each hint, and make the key move yourself. Build your skills from the basics to advanced patterns.

• Learn techniques step by step, from singles and pairs to X-Wing, Swordfish, XY-Wing, and chains.
• Reveal hints in stages, so you can decide how much help you need.
• Use candidate notes and Undo to follow the logic on the board.
• Practice with daily challenges and regular puzzles.
• Track completed lessons, moves solved on your own, and practiced techniques.
• Resume saved puzzles with your notes.
• Enter or paste your own Sudoku puzzle to practice.

START WITH THE BASICS
Naked Single, Hidden Single and Locked Candidates are free introductory techniques. A subscription unlocks the full Technique Learning library and unlimited puzzle hints.

Weekly, monthly, and yearly subscription plans are available.

Privacy Policy: https://sudoku.franklab.us/privacy/
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

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Screenshots

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Screenshots by Feifei Song, from the the App Store listing

Official page on the App Store

Alternatives to Sudoku Coach: Trainer

Changelog of Sudoku Coach: Trainer

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Developer information for Feifei Song

Feifei Song

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Technologies used by Sudoku Coach: Trainer

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Sudoku Coach: Trainer