The goal is to do a little bit of react native work and show that you can build a UI and work with a rest API.
Pick any subreddit you like, you could pick https://www.reddit.com/r/aww.json for instance. Contains super cute puppy pictures.
Setup a basic react native app.
The app should have 2 views. One view should be a UI that shows the recent posts from the subreddit. The second view should be a list of the interactions the user did with view 1.
View 1:
Use a UI like on tinder where the user can swipe left/right to approve/disapprove the image. You can use any existing plugins there are, if you find something use it, no need to re-invent the wheel. If you are unsure how this works - here a are a couple of examples.
View 2:
This is a list that lists the interactions with the puppy pictures from step one. It should show a small preview of the image, as well as whether the user upvoted/downvoted the entry.
It would be nice to have a menu or something similar to switch between View 1 and View 2.