Sudoku SE 4+

I’ve had this app for years and still love it. I also like that the ads they show are not obnoxious. No sudden sound blaring from a quiet game, no ads that you have to click through multiple times. I don’t need to watch a video and then click multiple times to see what’s being advertised and I still notice them. They only show up after you finish a game. Other apps could take notes on that.

My only request would be a dark mode for night time.

Four levels of difficulty, but only a limited number of puzzles.

Some nice feature options: choice of color schemes, correct/incorrect indicator, and 'notes' which puts small numbers (for possibilities) on a 3x3 grid in each box which are then erased as each possibility is eliminated.

Would like an 'automated entry' feature which would automatically enter the last remaining possibility in a box. What I mean is that 'notes', the possibilities you entered in each box, are reduced as they are eliminated by other boxes being solved, but when only one possibility remains you must manually enter it as your solution for that box. I want the option for the final possibility to enter itself, so that they would 'fly', reducing the tedium of the 'hunt and peck' of doing them one by one - after all you already went through that making the 'notes'.

I’ve been playing this game for years. Recently they made a really nice improvement, and that is when you have found all of a given number that number becomes muted in color on the bottom list .
One thing that I would suggest is that you should not have to guess at a solution. I find that some EXPERT level puzzles can’t be solved without narrowing the answer as much as possible, then just plugging one of them in with crossed fingers.
This is a game of logic, not chance.