If you're on a Mac, I actively maintain one called Queue (https://queue.community https://queue.community), and it's what I use to manage my own relationships.

If you're on a Mac, I actively maintain one called Queue (https://queue.community https://queue.community), and it's what I use to manage my own relationships. Whereas Monica is very manual, Queue syncs your Apple Mail, Messages, phone calls, FaceTimes, and calendar to create a timeline of each of your relationships automatically, and reminds you to reach out when it's been a while. Message content is analyzed on device and never leaves your machine. I charge $49/year, so quite a bit less than Dex.