AI Health Coach

An AI health coach that reads your data with you

Balnc’s AI health coach is a chat assistant, built on Anthropic’s Claude models, that answers questions using your own data: what you ate, how you slept, your fasting schedule, your supplements and your wearable metrics. It remembers key facts from past chats, and you can see and delete everything it remembers.

What data does the Balnc coach use?

Every answer starts from a snapshot of your recent data, so the coach can connect things a single-purpose app would miss, like a short night of sleep and a late last meal.

To generate an answer, your message and the relevant parts of this snapshot are sent to Anthropic’s Claude API.

Profile: age, sex, height, weight, goals, diet preferences and activity level.
Health profiles, if you add them: conditions, medicines, nutrients a doctor said are low, lab results and pregnancy.
Fasting: your schedule, the fast in progress and how many fasts you completed in the past 7 days.
Nutrition: today’s totals, your 7-day averages and micronutrients from food.
Sleep: last night and your 7-day averages.
Supplements: each product’s dose, timing, frequency, brand and nutrients.
Cycle data, if you have cycle tracking turned on.
Wearables: Garmin, Fitbit and Apple Health summaries, 30 days of WHOOP recovery and workouts, and your recent Strava activities.

Does the coach remember past conversations?

It remembers what matters, not every word. After a conversation, the coach saves up to five key facts, such as a food preference, a goal or a sensitivity you mentioned. It keeps up to 200 of these memories and brings the 15 most relevant into each new answer. Chat transcripts themselves are kept for no more than 24 hours.

Memories are encrypted with AES-256-GCM, and you can review them and delete them one at a time or all at once in Settings under AI memory.

Can I send the coach a photo?

Yes. On the web you can attach one image per message, in JPEG, PNG, GIF or WebP format and up to about 10 MB, for example a meal, a menu or a supplement label.

Which plan includes the AI coach?

The AI health coach is part of the Premium plan, together with the daily health score.

Works with

Garmin: Steps, sleep stages, HRV, stress, Body Battery, workouts and body composition.
WHOOP: Recovery, strain, sleep, HRV, resting heart rate and workouts.
Fitbit: Activity, sleep, heart rate, HRV, blood oxygen and weight.
Strava: Runs, rides and workouts with distance, elevation, heart rate and calories.
Apple Health: Steps, heart rate, HRV, sleep stages and workouts from HealthKit. In the iOS app, coming soon.

Common questions

Which AI model does Balnc use?

Balnc uses Anthropic’s Claude models. A larger Claude Sonnet model handles coaching conversations and photo analysis, and the faster Claude Haiku model handles quick food logging and pulls key facts out of your chats to remember.

Can I delete what the coach remembers about me?

Yes. Open Settings, then AI memory, to see every fact the coach has saved. You can delete memories one by one or clear them all. Transcripts of your chats are not kept for more than 24 hours.

Is the AI coach a replacement for my doctor?

No. The coach can help you notice patterns and prepare better questions, but it does not provide medical advice, diagnosis or treatment. Talk to a qualified healthcare provider about symptoms, medications or medical decisions.

More Balnc features

Start with what you already track.

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