RunForm
Understand your running form
Only for iPhone
Free
iPhone
Stop guessing. Start understanding your running form.
Why do some runs feel effortless and others don't? RunForm reveals the two things that actually explain it — no charts to decode, no data overload. Just two clear numbers that show whether you're getting fitter and running smoother:
– Heart4Speed –
This is our running engine (heart) efficiency. Heart4Speed shows how much speed you generate for every heartbeat. It combines aerobic fitness and running economy into a single, easy-to-understand number.
– Track fitness improvements over time
– See how efficiently your body converts effort into movement
In simple terms: are you getting more out of every beat of your heart?
– SmoothOperator –
This is your running smoothness and movement efficiency. Every step you take sends energy in two directions: forward (useful) and upward (wasted). SmoothOperator measures how much of that energy actually drives you forward.
– Improve running form and reduce wasted energy
– Run smoother, not harder
It’s a direct view into how efficiently you move with every stride.
Built for real runners. RunForm is designed to make complex biomechanics simple and useful:
– Clear, focused metrics you can trust
– No clutter - just actionable insights
– Track progress across runs and over time
– Turn data into better running
RunForm helps you answer the questions that matter:
– Am I becoming more efficient?
– Is my form improving?
– Am I wasting energy as I fatigue?
Works with your existing data. Connect with Apple Health and start analysing your runs instantly – no extra devices or setup required.
RunForm doesn’t just track your runs. It helps you understand them – so you can improve with purpose.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Improvements and Fixes, including simple feedback option
The developer, Paul Grayson, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Usage Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Paul Grayson
- Size
- 155.4 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later.
- iPhone
- Languages
- English
- Age Rating
16+
- 16+
- Copyright
- © 2026 Running Engineers