StackTrack-CRW
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Free · Designed for iPad. Not verified for macOS.
StackTrack takes the guesswork out of spotting for CRW jumps. Enter your drop zone, exit altitude, and canopy performance numbers, and StackTrack calculates your optimal exit point using real-time winds aloft data - so your canopy arrives at the target, not half a mile downwind.
How it works
StackTrack fetches a live upper-air wind profile for your drop zone from Open-Meteo and runs a simulation from exit altitude down to breakoff. It accounts
for wind speed and direction at every 1,000 feet, your canopy's forward speed, and your descent rate to place the exit point exactly where it needs to be.
Features
• Real-time winds aloft - automatically fetched for any location worldwide
• Interactive satellite map with flight path, jump run line, exit point, and altitude markers every 2,000 ft
• Lateral and along-track offset sliders to fine-tune the exit relative to the jump run
• Winds aloft table showing direction, speed, and temperature at each altitude
• Forecast mode - step forward or backward in 1-hour increments to plan ahead
• Supports imperial and metric units, multiple speed units (mph, knots, km/h, m/s)
• Weather screen with full forecast for your drop zone
• Draw generator for 2-way and 4-way sequential
Ratings & Reviews
- This app has not received enough ratings or reviews to display an overview.
- Added explicit editing mode for tweaking the spot.
- Added heading slider to change heading on-the-fly.
- Performance improvements for generating spots more quickly.
- Extended the canopy flight path on the spotting map from breakoff altitude all the way to the ground, showing where you would land if you kept flying the same heading
- Added a "Breakoff" label marker at the breakoff altitude point on the flight path
- Added altitude dot markers every 2,000 ft on the ground path extension, including at 0 ft
- Changing your heading in Tweak mode no longer resets your offset and exit sliders, the flight path recalculates using your current positions
- Added a "Calculate Optimal" button in Tweak mode to snap sliders back to the calculated ideal spot
- Removed the "JUMP RUN" text label from the jump run line on the map
The developer, Peter Fetros, 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
- Provider
- Peter Fetros
- Size
- 71.9 MB
- Category
- Navigation
- 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.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2025 Peter Fetros