Hey all!

I've been really enjoying Picross lately, with my favorite being the Picross S series due to its features. I'm looking for other picross players on mobile or desktop (website or download) that have some or all of these Picross S features (in order of relative importance):

1. Doesn't automatically correct me when I input wrong boxes
2. Allows me to easily mark boxes without "submitting" them
3. Ruler to measure a distance of boxes
4. Picross S's blue assist feature (I forget what it's called, but basically shows you rows where you can do things by marking them in blue!)

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Anyone know any like this? I've been really annoyed mostly with picross players missing this first feature (I want to solve that myself!), but I'd love anything that's decent :)