I think this is the feature that may help me decide what to use. I just don't want to lose data when an app gets abandoned so I want to have an option to have a backup file somewhere.
So which app currently provides it?
https://jaroslaw-weber.github.io/gridfinity-cutout-lite/
I made a tool for cutouts that don't use much filament. Basically you print these thin plates with cutouts and drop them into a Gridfinity box so you can organize items vertically (pens, USB sticks, earbuds, etc.). Exports to STL, and you can combine simple shapes for custom cutouts on unusual items.
If you find it useful, a star on GitHub would be appreciated!