Sudoku X4U vs Sudoku Mega Bundle

Simply the best Sudoku app ever! Four games in one! This is our free version for both iPhone and iPad with a large selection of puzzles to get you started with Sudoku X4. It can be upgraded to use our game engine that generates unlimited new puzzles at the touch of your finger. (Your iPhone or iPad is the computer making the puzzles!) We have the classic Sudoku puzzles that you know and love. Then for a different twist on the game, try our Jigsaw Sudokus. Instead of the usual square boxes, these puzzles have odd-shaped groups which require a slightly different perspective as you work through them. We round out the selection with X variations on both of these puzzle types. In addition to the usual Sudoku rules, these X-Sudokus have a fourth restriction in the diagonals, which must also contain the digits 1-9. Not really harder, just interesting variations on the simpler Sudoku puzzle types. Our Sudokus have 6 levels of difficulty, from absolute beginner to really, really hard. For newbies or aficionados who just want to relax, there are puzzles that require only simple techniques. At the other end of the scale, we have puzzles with Franken Fish, XY-Wing and other extreme patterns that will challenge even the most advanced puzzlers. (With no guessing required, of course.) These "really, really hard" puzzles rival the best handmade Sudokus. We include an album storage system that allows you to save (and view) your partially solved and solved puzzles, as well as your choices for new puzzles. Our friendly user interface makes solving a pleasure, offering a great note implementation, various ink colors, a timer and complete undo/redo capabilities. This is the ultimate Sudoku experience!

Hundreds of unique sudoku varations!!! Including: Killer, Jigsaw, Skyscrapers, 16x16, Samurai, Kropki, Word, Duplex and many more! • Easy, Medium, Hard and Expert difficulties for every game type! • Tons of puzzles guarenteed to have only one solution! • Hints to help when you're stuck, or automatically fill all notes! • Create Savepoints for when you want to make a guess! • Smart notes are automatically removed when placing another cell's correct number! • Easy note taking! Select multiple cells at once! • Zoom in and out of any puzzle to see the numbers better! • Leaderboard and achievements! • Completely customize the game's appearance to your liking! • Current Game Types: 0-9 2-3-4 3D 3D Bishop 3D Black Knight 4-5 4x4 6x6 8x8 10x10 12x12 16x16 16x16 X 37 123 147 12345 Anti Knight Anti Knight Boxless Anti White Knight Jigsaw Anti X Anti X Boxless Ascension Asterisk Atypical Atypical Fractures Big Killer Binary Bishop Black Knight Blackout Blind Killer Boxless Boxless Frame Boxless Pseudoku Brick Butterfly Centers Circular Circular 10 Circular Box Clock Color Columndoku Compressed Consecutive Cross Cube Cube Bishop Cube Black Knight Cube White Knight Deficit Dependency Diamond Digital Disjointed Disjointed Irregular Double Double Cell Double Cube Double Cube Bishop Double Cube Black Knight Double Line Double Ring Doubledoku Doubledoku Bishop Doubledoku Black Knight Doubledoku White Knight Duplex Difference Duplex Plex Duplex Sum Even Extra Space Extra Staircase Flower Fortress Fractured Bridge Fractured Spiral Fractured Staircase Fractured Target Fractured Web Fractures Frame Gattai 3 Gattai 3 Mix NPS Gattai 4 Gattai 4 Mix AMDE Greater Than Greater Than Killer Greater Than Killer Samurai Greater Than Samurai Heptagram Hexadoku Hexagon Hexagram Hexagram Bishop Hexagram Black Knight Hexagram White Knight Isodoku Isodoku Black Knight Isosudoku Jigsaw Jigsaw 6x6 Jigsaw Cube Jigsaw Skyscrapers Killer Killer 16x16 Killer Jigsaw Killer Modulo Killer Parity Killer Product Killer Samurai Killer Skyscrapers Kropki Kropki 16x16 Krychle Krychle 9x9 Layers 4x4x4 Layers 6x6x6 Lean Box Lean Cross Lean Gear Lean Patch Lean Wheel Lean Windoku Little Killer Lucky Seven Mathdoku Min Max Missing Musketry No Touch Nonconsecutive Nonconsecutive Boxless Nonconsecutive Circular Odd Odd Even Big Small Odd Even Big Small Boxless Outside Outside Boxless Palindrome Parquet Block Parquet Block Boxless Parquet Square Parquet Twist Pencil Mark Pentagram Pseudoku Quadruple Quadruple Boxless Queen Regular Samurai Samurai 9-Grid Samurai 9-Grid Kropki Samurai 13-Grid Kropki Samurai 16-Grid Kropki Samurai Kropki Samurai Mix WKSOT Samurai Mix XKJFO Sandwich Scatter Scatter 6x6 Search Nine Search Nine Boxless Sensei Sigma Sigma Circle Skyscrapers Snowflake Snowflake X Sohei Staircase Star Subtwodoku Subtwodoku 6x6 Suguru 5x5 Suguru 6x6 Suguru 7x7 Suguru 8x8 Suguru 9x9 Surplus Swap Symbol Tape Thermo Threedoku Threedoku Mix CFM Tight Fit Touchless Triangle Tricky Tridoku Trinary Triple Triple Mix SVQ Tripledoku Tripledoku Mix OGS Twin Boxes Twodoku Vudoku White Knight White Knight Jigsaw White Knight X Windmill Windoku Wing 3 Wing 5 Word X