How to install Cornish Reps

The app runs through TestFlight, Apple's app for testing. No account to create, nothing to pay.

iOS 18 and up. Free, no account needed. Still in testing, something may not work

What you need

An iPhone on iOS 18 or later.

The TestFlight app from the App Store, which is free.

Headphones with a motion sensor, if you want the automatic count: every generation of AirPods Pro, AirPods 3 and 4, AirPods Max, Beats Fit Pro, Studio Pro, Solo 4, Powerbeats Pro 2. The full breakdown is on the headphones page.

How it installs

Open the link on your phone. TestFlight offers you the invitation and installs the build.

You do not have to leave an email, and there is nothing to sign up for.

Updates arrive the same way: TestFlight tells you when a new build is out.

What works today

Rep counting from the sensor in the earbud, the count spoken into your ear, voice control.

Programmes: 100 push-ups, 200 sit-ups, 200 squats, 20 pull-ups, and the plank by time.

Stats, a daily streak, a home screen widget, light and dark themes, export and import.

When the count is off

Fix it by voice during the set: plus N, minus N.

If a model is off every time, export the CSV from the counter screen and send it to hi@cornishreps.com. The detector thresholds come from recordings made with AirPods Pro, and other models have had less testing, so one recording helps more than any description.

Data and money

Your data stays on the phone in a single file. No account, no server, nothing leaves the device. Export and import are there if you want to move your history.

The app is free. No in-app purchases, no subscriptions.