STRDR
Run in sync — cadence coach
Free · Designed for iPad. Not verified for macOS.
Dial in your running cadence with a smart metronome, real-time coaching, and music matched to your steps. Run smoother, reduce injury risk, build your rhythm.
Great runners share one secret: rhythm. STRDR turns cadence — the steps-per-minute that drives efficient, lower-injury running — into something you can actually feel, hear, and improve on every run.
WHAT IT DOES
Personalized cadence targets — dialed to your height, experience, age, and pace, not a generic 180.
Sample-accurate metronome — a rock-steady click that keeps you on rhythm, survives a locked screen and pocketed phone, and layers over your music.
Real-time coaching cues — spoken guidance and on-screen prompts through your workout, so you adjust without breaking stride.
Cadence by distance — see your target cadence for 5K, 10K, half, and marathon, extrapolated from your own race times.
Music that matches your steps — find songs from your Spotify library at your target BPM (or half-tempo, two steps per beat) so the beat IS your cadence.
Runs in the background — full workout and audio while your phone's locked in your pocket.
WHO IT'S FOR
New runners building good habits. Injury-prone runners fixing overstriding. Experienced runners chasing efficiency.
STRDR. Run in sync.
Ratings & Reviews
Cleaner, faster, sharper.
• Redesigned interface with a refreshed monochrome icon set
• Slimmer profile setup — and the keyboard no longer hides the form while you type
• Rounded buttons and layout fixes for smaller iPhones
• Under-the-hood stability improvements
The developer, Andrew Biesiadecki, 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 Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Andrew Biesiadecki
- Size
- 36.9 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 15.1 or later.
- iPhone
Requires iOS 15.1 or later. - iPad
Requires iPadOS 15.1 or later. - iPod touch
Requires iOS 15.1 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Location
- This app may use your location even when it isn’t open, which can decrease device battery life.
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 STRDR Inc