Works with

px works with intervals.icu.

If intervals.icu is where your training lives, px reads it directly, keeps each reading tied to the device that recorded it, and plans the day from there.

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What arrives

What intervals.icu shares with px.

Workouts. What you did, for how long and how hard, so yesterday counts toward today.
Sleep. How long and how well, so a short night changes the morning.
Heart rate. Read against your own normal, never an average.
HRV. Heart rate variability, read as your own trend, never against anyone else’s.
Daily activity. Steps and the shape of your day between sessions.
Weight. As often as you weigh in, read as a trend, never one morning on its own.

Each reading is set against your own normal, not an average person’s. By the end of week one, px knows yours.

What changes

The day is decided with it in view.

A short night changes the morning. Slept badly by your own standards? The session eases off and px tells you why. Slept well with a clear calendar? Train as planned.

Yesterday counts toward today. The session intervals.icu recorded is part of your load, so tomorrow is planned around what you actually did, not what was on the plan.

Fuel is planned with your body in view. What intervals.icu measures arrives without typing, so the food is set against where you are, not a number you entered once.

Move, Mind and Fuel, decided together. Your training changes what you eat. Last night’s sleep changes today’s session. One coach makes the call, every morning, and gives the reason.

Ask px, any hour. Text or talk. px answers from your plan, your sleep and your pursuit, and changes the plan if the answer calls for it.

Connecting

How to connect intervals.icu.

In the px app: Settings › Health & devices › Manage devices. Sign in once and px reads from then on.

Data is read as often as intervals.icu allows, and px only asks for what it needs to coach you. Disconnect at any time from the same place.

Also works with

Questions

Do I need intervals.icu to use px?

No. px works with just your phone. intervals.icu adds workouts, sleep, heart rate, HRV, daily activity, and weight, which lets px read your day more closely, but the plan, the coach and the food work without it.

Do I keep using the intervals.icu app?

Yes. px reads what intervals.icu shares and turns it into the day’s plan. Nothing about how you use intervals.icu changes.

What if intervals.icu has not synced this morning?

px does not guess. It uses what it has, tells you which inputs are missing, and asks you for the rest. You see a gap, never an estimate.

Is my intervals.icu data sold or used to train AI?

Never. It coaches you and nothing else. You can export, pause or delete it whenever you like, and px only asks for what it needs to coach you.