Drift: Current Tracker
for Sailboat Racing
$2.99 · Designed for iPad
Know and keep track of the current trends as you race. Drift measures actual set and drift at your exact location in 30 seconds. No subscription. Own it forever.
Know the current and trends. Win more races.
Drift measures real water current at your exact GPS location — direction in degrees true and speed in knots — in 30 seconds. Not a tide forecast. Not a modeled estimate. The actual current at your boat, right now.
Every racing sailor knows that current is one of the biggest factors on the racecourse. The boat that knows what the current is and what it's doing wins the layline call, starts on the favored end, and rounds the mark first. Until now, getting that number meant guessing from a chart, estimating from a buoy, or just guessing and hoping that you got it.
Drift changes that.
— HOW Drift WORKS —
Drop in any semi-submersible floating object into the water. Tap Mark Start. Watch the current carry it. Move to your marker and tap Mark End. Drift instantly calculates everything you need — direction in degrees true, speed in knots, so you're never left guessing again
When you start measuring the current drift displays the time with a progress bar to let you know when you've been timing long enough
— WHAT MAKES DRIFT DIFFERENT —
All the other apps that give current are estimated based off charts and forecasts, but those can be wildly inaccurate, the current can vary even on a small dinghy race course, and even more when you're talking off shore racing
Drift measures what is actually happening at your exact coordinates. The local bathymetry. Today's exact tidal state. Wind-driven current. Eddy effects near the shore. The number no forecast can give you.
— FEATURES —
- Set and drift in degrees true and knots
- 16-point flow direction (NNE, SSW, etc.)
- Smart GPS for stable, accurate readings
- Live GPS reception monitoring
- Session trend tracking
- Automatic slack tide detection
- High-contrast interface designed for direct sunlight
- Large touch targets for use with gloves
- Works 100% offline — no cell signal, no WiFi, no data plan
- Works anywhere in the world
- No account or signup required
- One-time purchase — no subscription, ever
— BUILT FOR RACING —
Every detail in Drift exists because a racing sailor needs it,
— ONE-TIME PURCHASE —
$4.99. Yours forever. Unlimited readings. All future updates. No subscription, no ads, no hidden anything. Buy it once, use it for every race, every season.
Drift is developed by a sailor, for sailors and coaches. It's the racing tool that you've been missing.
Ratings & Reviews
This app hasn’t received enough ratings or reviews to display an overview.
The developer, Andrew Sorensen, 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 Sorensen
- Size
- 842.8 KB
- Category
- Navigation
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © Andrew Sorensen
