Calckey offers an interesting feature that I wish Mastodon apps included - the ability to view from what PLATFORM an account comes from. It's missing one thing, which is a clickable link that would take you to the official site of each platform to check it out. I think the beta API from FediDB might be able to assist with that.

Would love to see this in more apps, regardless of platform. Gives casual users a chance to check out other pockets of the fediverse out there.