It's easy!
- Tap on the coin / stock to open it.
- Tap on the star in the top right to stop following.
If you are following multiple pairs for a cryptocurrency, "un-starring" the coin will remove all followed pairs from the list. If you wish to only unfollow particular pairs, see steps below:
- Open the followed asset from the Following screen
- Tap on the price source (exchange and pair) above the price chart.
- Un-star or star specific pairs that you wish to unfollow or follow, respectively.