AI Coach: What 6 Months of Health Context Can Tell You
Learn how My Bio Age’s on-device AI uses selected health facts, weekly summaries and longer-term trends to answer guided questions.
By My Bio Age
My Bio Age’s AI Coach gives you a structured way to explore your health metrics without sending your health facts to a cloud chatbot. Choose a metric and a question type, or open the Weekly Summary, to review an explanation on your iPhone.
What you can ask
- Status: review the latest available value and its context.
- Why: explore factors in the available records that may help explain a change.
- Improve: review general wellness suggestions associated with a metric.
- Weekly Summary: compare the last two complete weeks.
The current interface uses selected questions. It does not have a free-text conversation box, and it does not remember a back-and-forth conversation. A suggested explanation is not proof of causation.
Longer history, selected context
The app prepares local health facts including recent summaries, complete weekly values, daily values and longer-term statistics. Versions with extended history can retain all available supported Apple Health history and use a summary of that history alongside recent facts. The Index stays within six months. Retrieval selects context instead of sending every raw Health sample to the model.
This can help you compare a recent value with a broader pattern. It cannot reconstruct habits you never recorded or establish that a specific meal, workout or stressful event caused a change. Check any explanation against the dates and values shown in the app.
Two local model options
The current options are Qwen3.5 2B, labelled Recommended, and Qwen3.5 4B, labelled Advanced. The Advanced option is intended for devices with more memory. The download screen shows the current package information and device guidance. Model files download only when you request them.
If no language model is installed, the app can provide template-based answers. With a downloaded model, answer generation runs locally. The available facts and device resources still limit what the assistant can explain.
Privacy and limits
Model downloads need a network connection; health inference happens on the device. Health facts are not uploaded to a My Bio Age AI service. You can manage downloaded models in Settings.
AI Coach offers general wellness information, not medical advice. It can make mistakes, and it cannot diagnose symptoms or establish that a change in a score represents a change in disease risk.
Explore your own health history with a private, on-device AI Coach. Download My Bio Age free on the App Store. The iPhone app is completely free, with no in-app purchases, subscription or account required. Health analysis stays on your iPhone, and the optional AI Coach runs fully on device after a model download.