Developer Builds Personalized iOS Fitness App with Claude to Account for Heart Medication

Developer @dsp shared a personalized fitness app built with Claude: because he takes heart medication and mainstream fitness apps ignore medication status, he first built a web app with Claude, then had Claude port it to a native iOS app. The case was widely reshared and cited as a representative example of personal, AI-built health tools.

Confirmed

• The app generates a personalized weekly workout plan based on available equipment, medication status, calendar schedule, and sleep and heart-rate data from an Oura ring
• Beyond weekly plans, the author set up Claude to produce monthly digests of new fitness research to check for anything worth incorporating into training

Why it matters

• The case shows how AI coding tools let non-professional developers quickly build deeply personalized software: for users with special health constraints (like heart medication), where generic products fall short, self-building becomes viable
• Resharers including @mattslotnick and @sammcallister saw the workflow—reading calendars and wearable data to schedule workouts—as evidence of LLMs' potential as personal assistants; @mattslotnick noted the monthly research digest may be overkill for non-professionals but is an interesting way to acquire knowledge

2026-08-20 ~ 2026-08-21 · 5 related posts

• [source] Claude ported my custom web workout app to a native iOS app — dsp_ · 2026-08-20
• [source] Using Claude to port a personal fitness web app to native iOS — dsp_ · 2026-08-20
• Heart patient builds a Claude fitness coach that reads his meds, calendar, and Oura data weekly — matt_slotnick · 2026-08-20
• Using Claude for monthly research roundups to inform training — matt_slotnick · 2026-08-20
• User builds custom iOS fitness app with Claude, integrating meds and Oura data — sammcallister · 2026-08-21