Treadwell: Treadmill Tracker
Real treadmill pace & distance
About
Accurately measures your real treadmill speed and distance using your phone's camera and LiDAR. It corrects for belt slip and wear, providing precise metrics for your runs. Calibrate your treadmill or track workouts with confidence.
What's New in Treadwell
1.4
November 11, 2026
• See how far off your treadmill is in one tap. After a reading, tap the speed your treadmill shows and Treadwell tells you the gap. • Run a free Quick Workout at your real pace. If your treadmill is off by 3% or more, the finish screen shows the distance your treadmill would have shown next to the distance you really ran. • Checking more than one speed? Treadwell now tells you when calibrating once would correct every speed for you. • On iPhones without LiDAR, Treadwell now says plainly that it needs an iPhone Pro to measure, and lets you tell us which iPhone you have. • Fixed: a treadmill that was exactly 3% off was shown as accurate.
MoreSubscriptions & In-App Purchases
Free
14-day Trial
Use the full app free for 14 days.
FAQ
Does Treadwell have ads?
No, Treadwell is ad-free, allowing for an uninterrupted workout experience.
What devices does Treadwell support?
Treadwell is an iPhone-only application and also supports Apple Watch for enhanced tracking.
How accurate is Treadwell?
Treadwell uses your phone's camera and LiDAR sensor to measure the actual belt movement, providing more accurate speed and distance than treadmill displays alone.
Can Treadwell calibrate my treadmill?
Yes, Treadwell can calibrate your treadmill by measuring its performance over a few points, allowing it to provide accurate speed settings for future runs.
What are the requirements for using Treadwell?
Treadwell requires an iPhone Pro or Pro Max (iPhone 12 Pro or later) with a LiDAR sensor. The treadmill belt must also have visible markings for the camera to track.
How often is Treadwell updated?
The latest version of Treadwell is 1.3, and it was last updated on November 9, 2026, indicating active development.
What is the age rating for Treadwell?
Treadwell has an age rating of 4+, making it suitable for a wide range of users.
Can I track my workouts with Treadwell?
Yes, Treadwell offers a workout mode that tracks your time, distance, and pace, with options to pause, resume, and change pace on the fly.
