Layrd
by Pitsana
Support
Setup, permissions, sports, scores, and troubleshooting.
What is Layrd?
Layrd is an iOS app that reads workouts recorded by your smartwatch into Apple Health and writes — on your iPhone — a plain-English review of each session: effort, form, training load, recovery context. The review runs on Apple's on-device foundation models. Nothing is sent to a server.
Setup
What do I need to use Layrd?
An iPhone running iOS 26 or later, and a smartwatch that records workouts to Apple Health. Compatible brands include Apple Watch, Garmin, COROS, Polar, Wahoo, and Suunto — any watch that writes to HealthKit works.
Why iOS 26?
Layrd uses Apple Foundation Models (on-device AI) to generate the workout review. These models are only available on iOS 26.
I just installed Layrd. Where are my workouts?
Open Layrd and grant Health permissions for workout reads. Workouts already in Apple Health appear immediately; new workouts appear as your watch syncs them.
Privacy
Does Layrd send my workouts anywhere?
No. Reviews run on the iPhone, on Apple's on-device foundation models. Workout data does not leave the device.
Do you have an account system?
No. No accounts. No sign-in. Nothing to remember.
What does Firebase do, then?
Anonymous app-usage telemetry (crash reports, feature usage, performance). It does not have access to HealthKit data. You can disable analytics in the Account sheet.
Workouts
Which sports does Layrd review?
Run (outdoor and treadmill), cycle (outdoor and indoor), swim (pool and open water). Other workout types are listed but not yet sport-specifically reviewed.
My workout is missing a metric (cadence, vertical oscillation, etc.).
Some metrics depend on the watch and the sport. Apple Watch records different fields than Garmin; running records different fields than cycling. Layrd shows what's there.
The review for my workout looks wrong.
Open the workout, scroll to the bottom, and send feedback. Include the workout date and what looked off.
Scores & methods
How is the cardio score calculated?
Briefly: it combines time-in-zone with intensity, computed from your max heart rate. The full method is in the in-app "How it's calculated" link on the score itself.
What is TRIMP?
Training Impulse — Banister's training-load formula. It combines duration with average heart rate. We use it because it's the simplest model that works across sports.
RPE — heart rate reserve or %HRmax?
%HRmax. Documented in the running-physiology literature as the more transferable metric for amateur athletes.
Troubleshooting
The app shows "No workouts yet" but I have workouts in Apple Health.
Go to Settings → Apps → Layrd → Health, then toggle "Workouts" to allow Read. This can also happen briefly when resuming from background — pull-to-refresh or reopen the app.
The review takes a long time.
The first review after installing can take a few seconds while the on-device model warms up. Subsequent reviews are 1–3 seconds.
I don't see my watch's data.
The watch must sync to Apple Health. Open Apple Health, confirm the watch is listed under Browse → Workouts. If it's not there, the watch app isn't writing to Health — fix that in the watch's companion app.
Account & data
How do I delete my data?
All data is local to your iPhone. Delete the app to remove all data. There is nothing on a server to delete.
How do I export my data?
Apple Health is the system of record for the workouts themselves. Layrd's reviews are local; an export feature is on the roadmap.