Explore a vast collection of Sudoku puzzles with over 40 unique variants and more than 20,000 levels. Enjoy challenges ranging from standard grids to massive 21x21 puzzles, catering to all Sudoku enthusiasts.
4.7(23 ratings)
FreeIn-App Purchases
Best games like Number Join - Connect Diagonal
10+ similar games compared and reviewed
4.8 avg rating
10 free games
Updated September 2026
Number Join is great, but it's not the only option. Explore 10+ similar apps and games for iPhone and iPad, each reviewed and rated by real users. Find free alternatives, premium upgrades, and hidden gems.
Top Alternatives to Number Join
4.8😊(801 ratings)
FreeIn-App Purchases
This app offers a logic puzzle experience combining Sudoku and Kakuro elements. Solve grids by filling numbers 1-9, ensuring each appears once per row, column, and box, while also meeting area sum clues. Features include hints, pencilmarks, and progress previews.
What We Love
- 👍 Challenging and fun puzzles
- 🚀 Intuitive interface and controls
- 🔒 No ads or in-app purchases
- 💡 Variety of difficulty levels
- 👍 Helps keep the mind sharp
Room to Improve
- 🐛 Occasional crashes or freezes
- 💡 Difficulty levels not always consistent
- 💡 Lack of customization options (colors, etc.)
4.8😊(1.9K ratings)
FreeIn-App Purchases
Fill empty squares with numbers 1-9 so that each block sums to the clue on its left or top. No number can be repeated within a block. This logic puzzle offers endless fun and sharpens cognitive skills.
What We Love
- 👍 Easy to use
- 🚀 Smooth gameplay
- 🔒 No ads
- 💡 Variety of difficulty levels
- 👍 Helpful features (pencil marks, check progress)
Room to Improve
- 🐛 Some puzzles have multiple valid solutions
- 💡 Wish for more advanced solving techniques
- 💡 Ability to highlight/add pencil marks to multiple cells at once
- 💡 Option to auto-fill pencil marks after using hints
