What would make a private life app worth keeping for years?

I built Trace after realizing that my journal, reminders, photos, and notes about people were all telling different parts of the same story.

Trace brings memories, people, to-dos, goals, birthdays, and anniversaries into one private timeline. It works offline or through your own iCloud, and supports English, Simplified and Traditional Chinese, Japanese, and Korean.

Before launch, I’d love to hear from the Product Hunt community: what would make a private life app useful enough that you’d still want it five years from now? Effortless capture, better resurfacing, stronger privacy—or something else?

I also have 30 six-month Pro codes for early testers. If you’d like one, leave a comment—no upvote required.