Brave Web Browser - A project to keep an eye on. It was reasonably stable on macOS but has recently crashed a lot, so I have moved back to Safari for now.
Revolut Business - Revolut added Freeagent sync. Once it supports unique IBAN numbers, rather than relying on a reference number, I'm all in.
Showerthoughts - a macOS screensaver I built.
Balance Manager (beta) - A web-based tool to help you manage your tokens.