Apple Intelligence + Foundation Models

On-device intelligence that helps you write and organize.

On compatible devices, Health Diary uses Apple’s Foundation Models framework for focused health-journaling tasks: understanding your words, structuring details, and drafting a short entry you can edit.

Try Health DiarySee the two core uses →
On device

Language understanding, applied to a real task.

Health notes are personal and often messy. The model helps make them easier to review while keeping you in control of the final record.

Native Apple technology

Built with the Foundation Models framework.

Health Diary checks whether Apple’s on-device system language model is available before using it. When it is not available or ready, the app can use a fallback path for supported tasks.

Natural language

Turn a free-form note into structured details

The model can identify the symptom, severity, timing, duration, body region, triggers, relievers, and other context for you to review.

Editable output

You approve the record

Generated structure and drafts are a starting point. You can inspect and edit before saving.

Daily context

Create a short diary draft

Approved mood, Apple Health, and photo signals can be summarized into a concise first-person entry.

Privacy

On-device when available

Foundation Models processing uses Apple’s on-device system model on compatible devices.

Two focused uses

Less typing. More consistent records.

Health Diary does not add a general-purpose chatbot. It applies language understanding at the two moments where it removes meaningful friction.

1

Structure a health note

Write “dull headache after lunch, about a 4 out of 10.” Health Diary can prepare editable fields without asking you to complete a long form first.

2

Draft a daily entry

When you approve the context, Health Diary can turn selected mood, activity, sleep, and photo signals into a brief first-person diary draft.

Clear boundaries

Writing support is not medical judgment.

The model helps with language, structure, and recall. It does not decide whether a symptom is dangerous, diagnose a condition, recommend treatment, or replace a healthcare professional.

  • Focused prompts for defined journaling tasks
  • Structured, editable results instead of an open-ended chat
  • Availability checks before the on-device model is used
  • Fallback behavior when the model is unsupported or not ready
Today Plan is a separate feature.

Foundation Models support note understanding and editable diary drafts. The personalized Today Plan may use a server service for advanced analysis.

Availability

Designed for compatible Apple Intelligence devices.

On-device Foundation Models features require a compatible device, supported language and region, Apple Intelligence availability, and iOS 26 or later. Health Diary checks model availability at runtime rather than assuming it is ready.

Questions

Apple Intelligence FAQ

How does Health Diary use Foundation Models?

It helps structure free-form health notes and generate short, editable diary drafts from context you approve.

Does my device need to support Apple Intelligence?

Yes for the on-device Foundation Models path. Health Diary checks compatibility and model readiness before use.

Is the generated text final?

No. You can review and edit the structured record or diary draft before saving it.

Does it diagnose symptoms?

No. The feature supports writing and organization only.

Keep exploring

Symptom TrackerSee natural-language health notes in context. Apple HealthUnderstand the optional signals used in diary context. Today PlanTurn your broader health story into a few actions.

A calmer way to capture

Start with your own words.

Download Health Diary for iPhone and iPad.

Download Health Diary on the App Store