Sailing Master M

Pekka Leppanen · Navigation

5.0 1 ratings Free

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Chart standing · US

Not currently charting in this storefront.

What changed · US

Listing changes AppTracker has observed for this app in this storefront — new versions, price moves, rating shifts, and store copy.

Sep 28, 2026
New version 2.6 → 2.6.1

Version 2.6 Usability improvements: - Data displays: if true wind speed, true wind angle, VMG wind, or wind direction are missing, these are calculated from apparent values, CoG, and SoG. If location is missing, optionally phone’s or pad’s location data is used. Short distances are displayed without decimals. Waypoint ETE: negative values displayed as ‘---'. - Route display: consistent leg starboard (green) or port (red) wind angle color when sailing deep downwind. Wind laylines are infinite. - Trip and Session Statistics logs: when location and internet connection are available, the end location is reverse geo-coded to location name, city, and country. - NMEA hotspot recovery: if connection is lost, reconnect attempted every 10 s. Note that the possibly lost WiFi-connection must be corrected manually. Maintenance release 2.6.1 - The Wi-Fi connection can be changed or restarted without restarting the app. - Improved UDP connection recovery after Wi-Fi connection change. - Internal optimizations.

Sep 3, 2026
New version 2.5 → 2.6

Ratings breakdown · US

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5★ 100% 1
4★ 0% 0
3★ 0% 0
2★ 0% 0
1★ 0% 0

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Subscriptions
Pro annual $11.99/ year · 14-day free trial

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About

Sailing Master M offers comprehensive sailing data and performance optimization information on iPhones, iPads, iWatches, and ActiveLook smart glasses. The application provides configurable pages and data displays, utilizing over 35 sailing measurements from the boat’s instruments, polars tables, and nautical charts. On phones and pads, the Data and Analog Displays can include minimum and maximum values and time series graphs. The Wind Display provides wind, heading, route, and speed information. The Route Display shows the expected wind conditions on the next legs. The Map Display shows the vessel with direction, tacking and downwind laylines on a nautical chart, or the wind laylines in another location. The connectivity is through NMEA 0813 Wi-Fi gateways such as B&G Vulcan, Zeus, GoFree, Yacht Devices, Signal K, Actisense, and ShipModul. The application has evolved from its initial focus on NMEA data display to encompass a comprehensive suite of features. Consequently, the app’s name has been revised from 'Display0183M' to 'Sailing Master M'. For further information, please refer to the user’s guide available on the app’s website or within the app itself. Terms of use: The app is delivered under the Apple End User License Agreement (EULA, https://www.apple.com/legal/internet-services/itunes/dev/stdeula/) The following libraries and services are used: - Kitura/BlueSocket, published under the Apache 2.0 license - A modified version of GPX package, published under BSD 3-Clause License and copyrighted by Ioannis Silks - OpenStreetMap licensed under the Open Data Commons Open Database License (ODbL, https://opendatacommons.org/licenses/odbl/) by the OpenStreetMap Foundation Licence, and ©OpenStreetMap contributors. OpenSeaMap, which is licensed under the Open Data Commons (ODbL) license, and ©OpenSeaMap contributors The supported NMEA 0183 sentences are: - BWR: Bearing and distance to waypoint - DBS: Depth below surface - DBT: Depth below transducer. - DPT: depth of water. - CGA: Global Positioning System Fix data - GLL: Geographic position Latitude/Longitude - HDG: Heading magnetic - HDM: Heading magnetic - HDT: Heading true - MWD: undocumented, wind direction, wind speed - MTW: water temperature °C - MWV: Wind speed and angle (A,T) - RMB: XTE, range to destination, bearing to destination, destination closing velocity . - RMC: Speed over ground - RSA: Rudder sensor angle - VHW: Water speed and heading - VLW: Distance travelled through water - VPW: Speed - measured parallel to wind - VTG: Course over ground (T or M), speed over ground - VWR: Wind direction (A), wind speed (A) - WCV: Waypoint closure velocity - XDR: air temperature (°C), water temperature (°C) and barometric pressure (mbar). - XTE: Cross track error The data items from NMEA and polars are: - Waypoint bearing - Waypoint distance - Time to Waypoint - VMG waypoint - Cross track error - Depth - Heading - Heading - Course - Course - Water speed - Speed over ground - Water temperature - Air temperature - Air pressure - Wind speed apparent - Wind angle apparent - Wind speed true - Wind direction - Wind direction - VMG Wind - Latitude, Longitude - Waypoint laititude, longitude - Water Distance after reset - Total water distance - Ground distance after reset - Total ground distance - Velocity made good towards wind - Heel - Rudder - Boat target speed through the water - Boat speed of target speed (%) - Beat VMG boat target speed through the water - Run VMG boat target speed through the water - GPS based trip distance - Leeway

What's new · 2.6.1

Version 2.6 Usability improvements: - Data displays: if true wind speed, true wind angle, VMG wind, or wind direction are missing, these are calculated from apparent values, CoG, and SoG. If location is missing, optionally phone’s or pad’s location data is used. Short distances are displayed without decimals. Waypoint ETE: negative values displayed as ‘---'. - Route display: consistent leg starboard (green) or port (red) wind angle color when sailing deep downwind. Wind laylines are infinite. - Trip and Session Statistics logs: when location and internet connection are available, the end location is reverse geo-coded to location name, city, and country. - NMEA hotspot recovery: if connection is lost, reconnect attempted every 10 s. Note that the possibly lost WiFi-connection must be corrected manually. Maintenance release 2.6.1 - The Wi-Fi connection can be changed or restarted without restarting the app. - Improved UDP connection recovery after Wi-Fi connection change. - Internal optimizations.

Details

ReleasedOct 2021
UpdatedJul 2026
Version2.6.1
Size22.9 MB
RequiresiOS 17 or later
Age rating4+
LanguagesEnglish
PriceFree
Categories NavigationSports
Bundle IDcom.pekkaleppanen.Display0183M