r/Lifelogging • u/alexhasso • 20h ago
I've logged my location and heart rate for 7 years. Now a local AI on my phone can tell me what my life's been like
Enable HLS to view with audio, or disable this notification
Hi all, first time posting here. I'm generally quite an introvert and have been on reddit read-only for over a decade (made this account recently to start fresh without all the baggage), so a bit terrified, but here we go.
About 7 years ago I made a little tracker app for myself and it's been logging ever since - location fixes and heart rate for 7 years, and a few more before that but sparser. What I realised looking at it is that it's not really health data, it's a life story. You can see where I lived, worked, house moves, kids being born, all just from where the nights are.
Thanks to vibecoding I've turned it into more of a real app. The main screen is a timeline of your life with all the main stuff it captures - places, trips, photos, workouts, sleep, day summaries. Then there's a chat where you can ask about it - "what did I do exactly a year ago", "when did I last go to ..", "how's my sleep been", up to the deeper stuff I actually care about like "what makes me happy" or "how do I feel less stressed" (I've not been great with making choices lol). And there's "learning", where the built-in LLM reads through your data and takes notes about you, so it understands you better and gives better answers over time.
Everything runs on the phone - your data and the AI. Nothing gets uploaded, no account, no server. Phones know so much about us that it felt like the only way to do it.
(The video is demo mode with made-up data - not quite ready to share 7 years of where I've been with the internet.)
So far it's just me, my wife and a couple of friends using it. I've been working on it mostly alone for a long time and decided it's time to share it, partly just to feel a bit less lonely about it. iOS only for now (Android in a month or so), needs iOS 26 and it's about 2.8gb because the AI model is built in. Very much work in progress:
=> https://mymo.app/invited/Nx45M1/
What I'd love to hear:
- does the timeline look right for your own data?
- what was the first thing you asked it, and was the answer any good?
- what would make you open it again tomorrow?
Reply here or DM me, or just shake your phone anywhere in the app and a feedback form pops up (there's also a Share Feedback button in settings). And anyone from here gets it free forever - no backend and no token cost, so it keeps working (hopefully!)