Starlink Ocean Mode
12 NM Boundary Alerts
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Starlink Maritime requires Ocean Mode beyond 12 nautical miles offshore. Forget to switch it on and your connection goes dark exactly when you need it.
Starlink Ocean Mode tracks your distance to the territorial-waters line in real time and alerts you the moment you cross.
WHAT IT DOES
• Live distance to the 12 NM territorial waters line
• ETA to crossing based on your current heading and speed
• Push alerts when you're approaching, when you cross outside, and when you re-enter
• Speed, heading, distance-to-nearest-coast, and exact position
• Background GPS monitoring — works with the screen off and the app closed
HOW IT WORKS
Your device's GPS feeds a local boundary calculator that uses a high-resolution coastline dataset to figure out how far you are from the nearest shore. Subtract 12 NM and you have your distance to the territorial waters line. Everything runs on-device — your position is never transmitted to a server.
A small foreground notification stays active while monitoring is on, so the OS keeps the GPS service alive. When you're within minutes of crossing, you get a push alert reminding you to switch Starlink to Ocean Mode. Same on the way back in.
WHO IT'S FOR
Cruisers, sportfishermen, deliveries, and any boat that uses Starlink Maritime and crosses the 12 NM line. Built by sailors who got tired of forgetting.
PRICING
One-time purchase. No subscription, no recurring charges. Includes a 7-day free trial — full functionality on first launch, paywall after the trial.
IMPORTANT
This app uses simplified coastline data and approximate distance calculations. Treat it as a convenience reminder, not a legal compliance tool. Always consult official charts and your vessel's navigation systems for territorial waters compliance.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
New "On Land" status correctly identifies when you're inland, so the dashboard doesn't misleadingly flag inland positions as "outside territorial waters."
Battery-efficient location tracking using a single continuous GPS stream instead of polled snapshots. Higher-resolution coastline data for tighter boundary alerts near small islands.
The developer, Fred Bret-Mounet, 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 Linked to You
The following data may be collected but it is not linked to your identity:
- Location
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Fred Bret-Mounet
- Size
- 82.8 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. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Location
- This app may use your location even when it isn’t open, which can decrease device battery life.
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Ocean Mode Lifetime License $39.99
- Copyright
- © 2026 Salty Sailing Software