SailSpeed vs VMGPolar
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SailSpeed
Track your sailing speed, heading, and wind data with an outdoor-optimized display. Features a customizable race start timer and route mapping. Analyze your performance post-race.
- Speed and heading tracking
- Customizable race start timer
- Wind direction display (subscription)
- Route mapping overlay
- Outdoor-optimized display
- Bluetooth sensor connection (subscription)
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App for tracking sailing speed and direction, but also the wind. It has a display optimized for outdoor use. When you participate in a sailing race you can use the start timer. The timer can be adjusted to the wishes and needs of the user. It shows speed and heading and keeps track of race. If tracking is started it monitors the average speed, maximum speed, elapsed time and the distance covered. Wind direction is shown in a wind rose (subscripton required). App can make direct connection with a OpenWind BlueTooth sensor (subscripton required). In that case AWA, AWS, TWA and TWS is displayed in the app. It also has the ability to show a map and tracks the route in an overlay when map is selected and race is started. In setup menu landscape can be selected, the display will rotates accordingly, rearranging the speed or map and the heading for optimal visibility during the sail race. In the settings menu the user can select the units, and the scale of the map during the race tracking. Simply place your phone a a water tight casing on board of your boat, setup your settings and press start. The app will automatically keep tracking your progress, showing current speed and heading. Enjoy your sailing, optimize your speed during the race and analyze your data afterwards.
VMGPolar
Calculate sailing wind and boat speed with this tool. Input three values to determine the rest and log your data for export. It helps build and validate polar graphs for sailing performance.
- Sailing wind and boat speed calculation
- Input three values to calculate others
- Save data into a log
- Export log data
- Build and validate polar graphs
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Sailing wind and boat speed calculator. Enter 3 values to calculate the rest, then save the data into a log that can be exported later. The input fields are highlighted, with the least intensive highlight marking the next field to become a calculated value when a new input is entered. BSP = Boat Speed TWS = True Wind Speed TWA = True Wind Angle AWS = Apparent Wind Speed AWA = Apparent Wind Angle VMG = Velocity Made Good (calculated only) Save and export data to build and validate polar graphs.
Screenshots
Verdict
The clearest difference is rating: VMGPolar at 4.7 against SailSpeed's 3.8. VMGPolar also leads on in-app purchases (none vs 2) and update cadence (fortnightly vs every 14 months). On price, review sentiment, ratings volume and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. SailSpeed sells 2 one-off in-app purchases. VMGPolar asks for nothing beyond the download.
VMGPolar holds the better App Store score, 4.7 against 3.8. Both are backed by a comparable volume of ratings — 4 and 3 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
SailSpeed ships an update every 14 months, VMGPolar fortnightly. The most recent releases landed on September 25, 2026 and June 1, 2026 respectively.
| Parameter | SailSpeed | VMGPolar |
|---|---|---|
| Price | Free | Free |
| Rating | 3.8 (4 ratings) | 4.7 (3 ratings) — better |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 4 — better | 3 |
| Update frequency | Every 14 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 17.0 | 15.6 — better |
| Further details — not scored | ||
| Size | 4 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | i-Xp B.V. | Andrei Skobtsov |
Customer experience
SailSpeed
VMGPolar
In-app purchases
SailSpeed
- Plus yearly subscription$4.99
- BLE yearly subscription$24.99
VMGPolar
No in-app purchases









