CoasterData
Entertainment
Free · Designed for iPhone. Not verified for macOS.
Record real G-forces on roller coasters at 50Hz. Track speed, heart rate, and altitude. Share branded ride cards. iPhone + Apple Watch.
CoasterData turns your iPhone and Apple Watch into a portable ride engineer. Record real G-forces at 50 samples per second, track GPS speed, barometric altitude, and heart rate — then share your stats with a branded ride card.
MEASURE
- 3-axis G-force recording: vertical, longitudinal, and lateral acceleration
- GPS-derived speed and peak speed
- Barometric altitude changes and max drop
- Heart rate via Apple Watch workout session (peak, average, and min BPM)
- 50Hz sample rate with adjustable smoothing
ANALYZE
- Interactive replay timeline — scrub through your ride second by second
- Landscape mode with labeled g-force and time axes
- Auto-detected highlights: peak G moment, inversions, and airtime
- Per-axis breakdown with color-coded traces (vertical, longitudinal, lateral, combined)
SHARE
- Branded share cards with your stats, G-force graph, and selfie
- Fun context lines that compare your ride to fighter jets, astronauts, and F1 cars
- #CoasterData hashtag and link included automatically
- Save to Photos or share directly to Messages, Instagram, and more
EXPLORE
- Automatic park detection — finds nearby amusement parks using your location
- Browse coasters at each park and attach rides to your recordings
- Full ride history with park names, dates, and peak stats
APPLE WATCH
- Companion watch app with two-way sync
- Start or stop recordings from either device
- Live G-force display, peak tracking, elapsed time, and heart rate on your wrist
- Use the watch as the accelerometer for better body-relative measurements
- Animated mascot reacts to the forces in real time
EXPORT
- Download raw 50Hz sensor data as CSV
- Open in Excel, Google Sheets, or any data analysis tool
- Perfect for physics students, educators, and engineering enthusiasts
Built for coaster enthusiasts, physics classrooms, and anyone who wants proof of what they just survived.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Nathan Hulse, 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
- Nathan Hulse
- Size
- 9.9 MB
- Category
- Entertainment
- Compatibility
Requires iOS 26.4 or later.
- iPhone
Requires iOS 26.4 or later. - Mac
Requires macOS 26.4 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 26.4 or later. - Apple Watch
Requires watchOS 26.4 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Nathan Hulse