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Dev LogFebruary 25, 2026

Building an AI Coach That Actually Knows You

Why existing fitness apps feel generic, and how we're using Apple HealthKit + AI to build something truly personal.


Every fitness app I've tried follows the same pattern: pick a generic program, follow it for two weeks, get frustrated because it doesn't account for your reality, quit.

They don't know you slept poorly. They don't know your knee has been bothering you. They don't know you skipped yesterday's workout because your kid was sick. They just serve the next exercise in the queue.

GoalQIA is our attempt to fix this.

The Vision

    Imagine waking up and your phone already knows:
  • You slept 5.5 hours (Apple Watch data)
  • Your resting heart rate is elevated (recovery signal)
  • You did heavy squats yesterday (training log)
  • You have a meeting at 6pm (calendar)
  • It's raining outside (weather API)

With all that context, GoalQIA generates today's plan: a lighter upper-body session, adjusted calorie targets, and a suggestion to prioritize sleep tonight. Not a generic "Day 3 of Week 2." A plan that's yours.

The Tech

We're building GoalQIA as a native iOS app with Apple Watch companion. Here's why:

HealthKit is the key. Apple's health framework gives us read/write access to sleep, heart rate, weight, nutrition, and workout data — with user permission, of course. This is the richest health data source available on any platform.

Cloud-powered AI. Your health data — sleep, heart rate, weight, body composition, along with your profile (name, age, medical conditions) — is sent to our backend and processed through Azure OpenAI to generate personalized plans. All data is transmitted over encrypted connections and never shared with third parties.

RPE-based weight guidance. During a workout, after each set you rate the difficulty (RPE). GoalQIA uses that feedback to suggest simple weight adjustments for your next set — nudging the weight up or down to keep your training progressing.

Current Status

We're in active development. The morning check-in flow is working. The workout tracking engine is working. The AI coaching layer is being fine-tuned.

If you want to be among the first to try it, join the waitlist on our GoalQIA page.