CoasterData

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.