A fitness tracker that encrypts your health data
Health data deserves more than a password. Every value you log, every meal, note, goal, plan item, coach note, metric name and food preference is encrypted with AES-256-GCM before it reaches the database, using a key derived for your account alone from a master key that is not stored with the data. Teams see only the numbers you choose to share, assistants connect through scoped OAuth you can revoke, and you can export or delete everything.
How it works
- 1
You log
Values, meals, notes and goals are encrypted before they reach the database.
- 2
Only you read it
The app decrypts your data only to show it to you, or to assistants you connected.
- 3
You choose what to share
Teams see derived scores after both sides agree; assistants get the permissions you approve.
- 4
You can leave with it
Export everything as JSON, or delete the account and every row it owns.
value e1:RWterTMr-kKyoIBxcXwOi…
note e1:JKYIlAH_HLVOfsSiNShys…
meal e1:XWzUaN0wq8qSLuyU-Y4D8…
AES-256-GCM with a key derived for your account alone. The master key is never stored with the data.
Encrypted at rest
A database copy alone reveals no health content. A value copied to another account's row will not decrypt.
Consent for sharing
Teams need both sides to agree, and members see derived scores only.
You stay in control
Disconnect any AI assistant, download all your data, or delete your account and every row it owns.
Who uses it
"Gut and weight data stays mine, even from my running club."
"I gave my assistant read access only, and can revoke it in one tap."
"A database leak alone would not expose my entries."
Illustrative examples of how people use the feature.
Questions
Can staff read my entries?
Not from the database. Values are stored encrypted; the app decrypts them only to show them to you or to the assistants you connected.
Is my email encrypted?
Email and name stay readable because sign-in and team display need them. Health content is encrypted.
What happens if I delete my account?
Your account and every row it owns are deleted. Teams you own pass to the next member.
Do you sell or advertise with my data?
No. Health data is never sold and never used for advertising.
Free calculators
Your first brief is one entry away
Pick an objective, tell it how you eat, log one thing.