Anchor & Course
Michal Sidorczyk Navigation iPhoneiPadiPod touch
Anchor & Course is a free Navigation app for iPhone and iPad by Michal Sidorczyk. Requires iOS 18.2. Updated July 21, 2026.
- Price
- Free
- on the App Store
- Size
- 30 MB
- Age 4+
- Updated
- Jul 21
- 2026 · v1.2.2
Screenshots
About Anchor & Course
Main features are listed below. For Anchoring: • set the sae area for your anchoring. Adjust flexible shape (not just a circle) • raise an alarm if your boat leave the safe area • check the wind and weather forecast for given anchoring point • set and adjust the safe area manually, without map’s support in areas with no internet access For Course tracking: set the straight course to the desired destination (not straight on a map, but really straight) set the acceptable track threshold, within which the course is considered OK raise an alarm if boat leaves behind the set threshold, meaning the course is lost manually set and adjust the course destination point, with no internet access needed For the communication: • check remotely the boat’s position in anchoring mode. What is needed: • Anchor & Course application installed on your and remote devices • users logged in on both devices • remote users added to the list of accepted users on each device (to achieve both way data exchange) • data is sent only between two devices and temporarily displayed on the second device. • data is not stored anywhere and is lost once the user closes the app. Celestial Navigation in Your Pocket Determine your approximate global position using just your phone—no GPS or cellular connection required! Perfect for navigation enthusiasts, educational purposes, and survival practice. Key Features: • Calculate your approximate position completely offline. • Take multiple measurements to improve your probable location calculation. • Enter manual values to bypass phone sensor limitations. IMPORTANT ACCURACY DISCLAIMER: Please note that a smartphone is not a professional optical sextant. Expect an accuracy margin of roughly 20 to 150 km. This tool is for educational and recreational use only and should NEVER be relied upon for critical navigation. > Inaccuracies are a natural result of: • Smartphone sensor noise (magnetometer and accelerometer limitations). • Variations in the Earth's magnetic field and declination. • Atmospheric refraction affecting the perceived altitude of celestial bodies. Standard Apple Terms of Use (EULA) apply (https://www.apple.com/legal/internet-services/itunes/dev/stdeula/)
What’s new
Version 1.2.2 · Updated July 21, 2026
Bug fix: display of distance in meters and feet has been fixed.
App privacy
The developer, Michal Sidorczyk, reported these privacy practices to Apple.
Data Not Linked to You
The following data, which may be collected but is not linked to your identity, may be used for the following purposes:
- Usage Data: Product Interaction
- Location: Precise Location
Used for: Analytics, App Functionality
Alternatives to Anchor & Course
Looking for apps like Anchor & Course? Here are 6 similar apps on the App Store. The highest rated is Wind Compass - WindGlance (5.0/5), and 4 of the 6 are free to download.
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Wind Compass - WindGlance
5.0
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Watt And Sea
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Anchor Basic
3.5
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GPS 2 IP
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BookMyCharging
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FlightRights
4.0
| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| Anchor & Course | – | Free | July 21, 2026 | |
| Wind Compass - WindGlance | 5.0 / 5 (1) | Free | Jul 16, 2026 | Compare |
| Watt And Sea | – | Free | Oct 28, 2023 | Compare |
| Anchor Basic | 3.5 / 5 (17) | 0.99 USD | Oct 14, 2026 | Compare |
| GPS 2 IP | 4.2 / 5 (15) | 7.99 USD | Aug 28, 2026 | Compare |
| BookMyCharging | – | Free | Apr 29, 2026 | Compare |
| FlightRights | 4.0 / 5 (4) | Free | Jun 16, 2026 | Compare |
Compare Anchor & Course with the top alternatives: ratings, updates, ASO score and keyword gaps →