An easy one I would do myself if I had more time. A calorie tracker that does not try to get you into a cult.
The only time it accesses the internet is to update its on-board database.
None of your data gets sent anywhere unless you choose to share it (for things like new foods).
No suggestions.
No exercise programs or tracking
No sleep tracking.
Tracks only what you want. Extras available through add-ons or something, but I don’t care about tracking nutrients, fat, carbs, etc. so keep them out of my way.
In short, follow the Unix guideline of an app doing one thing and doing it well.
An easy one I would do myself if I had more time. A calorie tracker that does not try to get you into a cult.
If you run Android, check out “Energize” on fdroid.
If all you need is calories couldn’t you just use any counter app for that? At that point you’re just adding numbers in.
Waistline kind of works like that.
And I think there are a few self-hostable solutions out there.