4/5 rating based on 9 reviews. Read all reviews for Geometry Sudoku for iPhone.
Geometry Sudoku is free iOS app published by Glenn Dixon
PeteCurley
I got burned out on regular sudoku months ago. Geometry sudoku is an awesome change, may even be better than the original.
Beatle & Elvis Lover
Would have given 5 stars if you could have notations
pinskeep
Would definitely give a higher rating if I could use pencil marks. Otherwise useless, especially on the harder levels.
Gooblette
Don't you know you need pencil marks? No way to put notes in... Also wish it had the normal 1-9 instead of just 1-6. Good amount of puzzle boards, but probably will never play them unless they add a pencil in! I guess you could just do the easy ones, but where is the fun in that unless you are learning how to play.
hopefullskywatcher
...really needs pencil marks. Difficult to solve some Medium level and all Hard level puzzles without guessing. UPDATE: I have to admit that not having the pencil marks forces me to think more. It's more work to keep more of the logical steps in my head to solve the puzzle. Still find it undo-able to solve hard level puzzles without guessing. Argh.
cctice
Update: now will not work with my iPhone 6 plus. Won't go to next game and freezes