Tusky is a lightweight client for Mastodon, a free and open-source social network server. It supports all Mastodon features, like photos, videos, lists, custom emojis and is designed according to material guidelines. You can choose between a dark and a light theme in Tusky. It has notifications and a drafts feature. Tusky is free and open source software licensed under the GPL-3.0.
To me tusky seems absolutely trade-free. I installed the app on my phone, loged in with my mastodon account and that’s it. Tusky is free and open source, the website has no trackers or ads and it seems to not want anything from me. Therefore I give 5/5 blocks.