Allow users to add their own OBJ/STL files to game

I've been searching for a package that will allows users to easily add models to a game. Nothing too crazy, iPhone/iPad users should be able to:

- Add OBJ/STL files with textures to a local library
- Select and view models in active scene
- Render model using whatever lighting is available in current scene

I plan to launch on Android in the future, for now I'm targeting iOS only (iPad for first launch to be specific). I found these assets but am not sure if they're the right tool. Has anyone addressed this issue before and if so, what did they use?

https://assetstore.unity.com/packages/tools/input-management/objreader-152
https://assetstore.unity.com/packages/tools/modeling/trilib-model-loader-package-91777
https://assetstore.unity.com/packages/tools/input-management/simple-obj-22195