AG Loop: readiness-driven coaching in an iPhone app
Summary
AG Loop is a free iPhone app from Army Gymnastics that acts as a training and nutrition coach built around one idea: your plan should change with how ready you are today.
It combines HRV, resting heart rate and sleep into a daily Readiness Score, then adapts workout load and nutrition targets to match.
Client snapshot
- Industry
- Health & Fitness
- Client
- Army Gymnastics
- Location
- Utah, USA
- Services
- Mobile app, product design, subscriptions
- Platform
- iPhone (App Store)
- Status
- Live
The challenge
Most plans are fixed, so they ignore a bad night of sleep or a high-stress week. The goal was a coach that adjusts to the person, without asking them to enter a lot of data.
- Plans needed to adapt to daily condition
- Health data had to come from the phone, not manual entry
- Meal logging had to be quick
- The app needed a simple subscription model
Our approach
- 01Discover
We defined the core idea, one daily Readiness Score, and what it should change.
- 02Design
We designed a calm, simple daily view: today's score, today's workout and today's nutrition.
- 03Build
We connected health data, planned training blocks with deload weeks, and added meal photo analysis.
- 04Run
We released on the App Store with a free trial and plan for updates.
The solution
A mobile coach that turns health signals into a plan for the day.
- Readiness Score from HRV, resting heart rate and sleep, synced from HealthKit or Health Connect
- Periodised training blocks with varied rep ranges, an RPE ramp and a scheduled deload week
- AI meal photo analysis that estimates calories and macros, with manual logging too
- Nutrition targets that adjust with training day and readiness
- Guided warm-ups and cool-downs
- Free to download, with monthly and annual plans and a 7-day trial
Impact
- A coaching app live on the App Store
- Training and nutrition that respond to daily readiness
- A product link between the Army Gymnastics content site and the app