AndStatus

AndStatus is a multiple accounts client for multiple Social networks, including
<a href="http://gnu.io/social">GNU social</a>, <a href="https://github.com/tootsuite/documentation">Mastodon</a>, <a href="https://twitter.com">Twitter</a> and <a href="http://pump.io">Pump.io</a>. AndStatus
can combine your feeds from all networks into one Timeline, and it allows you to
read and post even when you are offline.

For Android v.7.0+ devices. Free/Libre and Open Source License.

Differentiating features of AndStatus:

* Many accounts in different Social networks. You may have several accounts in each, write/reply as any "You" and share between accounts and networks.
* You don't need to be online to read timelines and to post your updates: drafts and unsent posts are kept even after reboot. They will be sent when your device is Online.
* Convenient tree-like "Conversation view".
* "Global search" allowing you to search public notes in all networks with one query.
* Lists of Friends and Followers, presented as User Lists and as Timelines (with the latest note by each User).
* Notes (tweets)/avatars/attached images are being synced in a background, when your device has a good connection. By default, attachments are downloaded via WiFi only.
* Cached data may be stored for years or for several days only - it's your choice.
* Backup accounts and notes and Restore them on any of your devices. Own your data!
* Free and without ads, community supported.

v.62.03 Mastodon login fixed, maximum number of characters in a message from a server's config. Updated for Android 15.