App Name: Sudoku Clean
Current Version: 1.0.0
Contact: shizheqing123@gmail.com

Comprehensive Feature Support:

Pure Ad-Free Experience

Permanent removal of all advertisements

Clean interface optimized for focus

Intelligent Hint System

Context-aware suggestions when stuck

Provides solving strategies, not just answers

Adaptive difficulty matching

One-Tap Note Mode

Visual distinction between notes and final numbers

Auto-remove conflicting notes

Seamless Game Sharing

Share current games via unique code

Export historical puzzles as QR images

Import shared games in 3 seconds

Theme & Language Customization

6 visual themes (Classic, Ocean, Forest, etc.)

Full multilingual support (10 languages)

Independent theme/language settings

Custom Game Creation

Input any Sudoku from external sources

Supports manual puzzle creation

Save custom games to local library

Sudoku Solver

Validate puzzle correctness

Smart Input Shortcut

Double-tap cell to input when only one note exists

Troubleshooting Guide:
❌ Solver Not Working?

Ensure puzzle has valid starting numbers

Check for conflicting entries (red highlights)

❌ Sharing Failed?

Update to latest app version

Verify device has clipboard access

❌ Theme Not Applying?

Restart app after changing themes

Confirm sufficient storage space