A runner crossing an empty plaza at sunrise.

Marathon training, explained.

A running coach for iPhone and Apple Watch. 5K to 100 miles.

Start your free trialFree for 14 days, then $5 a month billed yearly

Every run, explained.

Readiness 36 and 86 degrees. Today's 5 miles became 4.2, eased 20 seconds a mile, and the card says why.

Close on the runner, catching her breath.

Know your finish.

72% race confidence. Week by week the projected finish climbed past a 3:45 goal to 3:39:13, and the coach says why it moved.

New

Up to 100 miles.

Plans for 50K, 50 miles, 100K and 100 miles. This is a 100 miler's peak weekend: long runs in hours, with the climb for each.

New

Tune-up races.

A marathon as training, a 50K as a race, both on the way to the big one. The weeks around them are rebuilt.

The runner in full stride across the plaza.

Safety, free.

Your contacts follow you on a live map. Hit SOS and they get a text and an email.

Race day.

Send a live link with your bib. Friends follow you on the course, no app needed, with a finish time projected from your pace so far.

Two weeks free.

Then $5 a month billed yearly ($59.99), or $9.99 a month. Cancel anytime.

Start your free trial

QR code that opens Treadly in the App Store

On a computer? Scan to open Treadly on your iPhone.

Not ready?

Take the plan instead. Pick your race and your level and we'll send a real training plan as a PDF, built from the same engine the app uses. Free, and you never have to install anything.

STEP 1 · THE GOAL