CoasterData

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.