Bein
Know exactly what goes into your body.
Two apps for people who take that seriously. One works out what your metabolism is actually doing. The other keeps every recipe you've ever meant to cook. Both are free, and both run entirely on your phone.
Two apps
Each solves one problem properly.
Burnin
LiveEvery calorie app picks a formula for your metabolic rate and never checks whether it was right. Burnin works out your real one — from what you logged against what the scale actually did — and gets more accurate the longer you use it.
About Burnin
Cookin
In reviewThat recipe video you saved and never found again. Send Cookin a TikTok, a link, or a photo of a cookbook page, and it comes back as a real recipe — then cooks with you, timers and all, and writes your shopping list.
About Cookin
The architecture
They share one brain.
Both apps run a large language model directly on your phone. That model is about 2.4 GB, and downloading it twice would be absurd — so they don't.
Install both and the second one finds the model the first already has and uses it in place. On Android this runs over a signature-permission bound service, so only apps signed by us can connect. On iPhone it's a shared App Group. Either way, the inference happens on your hardware. If a phone can't run the model at all, the features fall back to a rules engine rather than quietly shipping your data to a server.
As far as we know, no one else ships two consumer apps that share a single on-device model this way.
What that buys you
No account. No server. No catch.
- No account. Nothing to sign up for, nothing to delete, no password.
- Works offline. Every feature, including the AI ones, in airplane mode.
- Free. Not a trial. There is no subscription today.
- Nothing to leak. Your food, your weight, your recipes and your photos stay on the device. We couldn't hand them over if we were asked.
The one exception, stated plainly: both apps send anonymous product analytics — screen names and counts, never content, never an identity. It's how we know which features people actually use. Details are in each app's privacy policy.
Get them
Both free. Both on your phone.
Cookin
Every recipe you save, in one place you actually own.