Data and processing
How does 140.6 handle training data and AI?
140.6 is designed around local-first training records, with clear boundaries for optional AI and remote features. Supported Apple Intelligence may be tried first for planning; a configured remote plan service is an optional fallback in Standard mode. Deterministic code validates proposals and calculations, while missing, estimated, and disconnected evidence remains explicitly identified.
How is information processed step by step?
- Training plans, activity records, Fuel entries, recovery context, settings, and Coach history are designed to remain primarily in app storage on the iPhone.
- When planning needs assistance, Standard mode tries supported Apple Intelligence first. If needed, minimized structured context may use a configured remote plan service.
- On-device-only mode avoids the plan server and uses supported Apple Intelligence followed by deterministic local rules.
- When a user chooses optional remote food-photo analysis, the app discloses that route before the action and the user reviews the nutrition estimate before saving.
Remote processing is not a zero-retention promise. Infrastructure and model providers may retain request data under their terms, configuration, abuse-monitoring practices, and legal obligations. The privacy policy provides the fuller current limits.
Common mistakes about AI training tools
- Assuming AI output is an observed fact rather than a bounded suggestion.
- Assuming local-first means every operation is local or that device backups and third-party services are controlled by the app.
- Entering emergency information or highly sensitive medical details into a coaching or free-text route.
- Using an estimate as if it were measured evidence without checking its provenance.
AI may assist with strategy and wording, but deterministic validation owns safety, prerequisites, completion, provenance, and final calculations.
Why do people struggle to interpret incomplete data?
A training record can be missing distance, heart rate, power, sleep, nutrition, or recovery information. Treating each gap as a zero creates a false sense of precision, while treating every estimate as measured evidence hides uncertainty. 140.6 keeps evidence states visible so that an athlete can decide what the record supports.
For the connected product model, see What is 140.6? and How planning works. The iPhone download page links to the public App Store listing.