Questions about Bluesky

Since the news of the Block feature on X/Twitter, some that I followed are moving or already made their Bluesky accounts and have already or planning to private their X/Twitter account.

I was thinking about getting a Bluesky account but as a person who gets anxious sometimes, I want to ask few questions about Bluesky before making a decision to get one.

1. Is Bluesky good? Does it have any similarities and differences between it and X/Twitter?

2. Does Bluesky have an app? Because, I use my IPhone more when I’m in X/Twitter.

That is all the questions I’ve asked. Thank you.