mastodon.ar.al is one of the many independent Mastodon servers you can use to participate in the fediverse.
This is my personal fediverse server.

Administered by:

Server stats:

1
active users

Aral Balkan

“Can I trust app X?”

Can you trust the company/organisation/people who make it? (What have they done in the past/are doing now?)

Can you trust their business model? (How/when do they make money?)

Is it open source?

Is it decentralised?

If yes to all, yes. Otherwise no.