How I feel and the habits Cronometer can't see. Food, macros, glucose, ketones, steps, sleep duration & weight live in Cronometer. This is the symptom layer for spotting food triggers.
Encrypted before it leaves your device. Open the gear to set up sync. Built for Jesse, June 2026.
Your data is encrypted on this device with your passphrase before it's sent. The server only ever stores ciphertext. Use the same Sync URL, token, and passphrase on every device.
On your PC this writes a plaintext JSON you save into your Proton Health Coach folder so Claude can read it. On iPhone it downloads the file instead.