I built Chumlord, a little iOS app to help me stay in touch with the people I care about. Set a catchup cadence for each friend, and it shows you who you’re overdue to reach out to. No accounts, no data collection, just open it to check the health of your friend roster!
The app is technically trivial, but withering social circles is a topic I see routinely discussed on HN, and I decided I wanted to take a stab at giving the problem a physical form and a tool to shape it. Been using this for a week now, and I really like it!