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I was amazed by this gif of someone drawing on Amaziograph.
Amaziograph is an iOS only app, but I did find this android app called Digital Doily that seems to match it.
Not sure if Digital Doily has all the features of Amaziograph, but it was definitely fun. Like a electronic spirograph.
Linkme: Digital Doily
EDIT: for some reason, the Linkme is not working, so here's the play store link [link]
I bought it because why not and played around for 15 minutes, it works as intended with plenty of different patterns and the amount of grids that can be configured
Here's a different one for free, it has less features but still cool: [link]
It's called Amaziograph, and it's available on all the app stores.
There's a free alternative on Android called Digital Doily
There's also this website
There's a basic version of this app on Android called Digital Doily too
This looks similar. About to push it to my tablet now. [link]
There's also an android app called Digital Doily
Also on android [link]
Here's an android app that does it [link]
I use an app called Digital Doily:
On Android there's a free alternative called Digital Doily
There's also Digital Doily which is a free alternative for android
Digital Doily App on Android!
I built this after seeing your comment, what do you think?
Here's a version on android - [link]