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I think it's also on Play, if that's your thing.
It is available in differerent versions. There's one with no networking, but also one with various cloud syncing, including self hosting (Nextcloud).
I've been using the offline version for years and syncing with Syncthing.
What I like most is that it uses the todo.txt file format, which IMHO is the uber-task-format, and means that I have a variety of editing options on the desktop.
https://www.f-droid.org/packages/com.thatsmanmeet.taskyapp/
This is as simple and as neat as it can get.
Busted. I got:
"This app keeps closing, force close?" Type message
Weird, it works fine for me.
Give me a day maybe two, it sounds simple enough I can code something for you for fun.
If you have any other special feature requests let me know so I can make sure to include them.
(18 May 2023) Done! Testing and bug fixing took another two days :P
Hey, that'd be cool!
Tasky (above) does most of it but it crashes a lot.
If it can make multiple checklists that's be good - which is like having a few pieces of paper irl and having 1 checklist on each.
Tasky can only have 1 checklist
Round two!
Check this one out, fits all the criteria and (hopefully) doesn't crash.
Thanks!
I use Notally a lot, but I think it lacks the clearing feature (if you mean to reset the whole list in one go). I'm not sure it even has the ability to duplicate checklists.
I might actually try out some of the other suggestions, they look really good.
Omninotes is on fdroid and is very good.