Mastodon client for Android 8.0 or later.

(multiple account multiple column)
- You can swipe horizontally to switch columns and accounts.
- You can add and rearrange columns.
- Column types: home notification local-TL federate-TL search hash tags conversation profile muted blocked follow requests etc.

(cross account operation)
- You can favorite/follow operation as a user different from bind to column.

(other)
- Good emoji support.

source code is here.
https://github.com/tateisu/SubwayTooter

Some of the icons used in this app is based on the Icons8 https://icons8.com/license/