WX Course vs VMGPolar
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
WX Course
This app provides GPS and compass data on your Apple Watch, displaying course, speed, latitude, longitude, and GPS accuracy. It also features a secondary screen with a real compass synchronized with course data.
- GPS data from iPhone
- Course (COG)
- Speed (SOG)
- Latitude and longitude
- GPS signal accuracy
- Real compass display
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WX Course is the most perfect and efficient app to have your data GPS and compass on your Apple Watch. WX Course send the next GPS data from your iPhone: - Course (COG) - Speed (SOG) - Latitud and longitude - Accuracy of GPS signal Include a second screen with a real compass with COG data for S0, S1, S2 and S4. NOTE: Continued use of GPS running in the background can dramatically decrease battery life.
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 price: VMGPolar at Free against WX Course's $2.99. VMGPolar also leads on update cadence (fortnightly vs every 3 months) and review sentiment (100% vs 75%). WX Course's advantage is rating (5.0 vs 4.7) and iOS requirement (11.2 vs 15.6). On ratings volume, ads, in-app purchases and device support 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
VMGPolar is free to download; WX Course costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
WX Course holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 2 and 3 respectively. Written reviews complicate that: 75% of WX Course's written reviews are positive against 100% of VMGPolar's, so the app with the better star average is not the one people write more warmly about.
WX Course ships an update every 3 months, VMGPolar fortnightly. The most recent releases landed on October 29, 2026 and October 6, 2026 respectively.
| Parameter | WX Course | VMGPolar |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 5.0 (2 ratings) — better | 4.7 (3 ratings) |
| Positive reviews | 75.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 2 | 3 — better |
| Update frequency | Every 3 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPod, Apple Watch — better | iPhone, iPod |
| Requires iOS | 11.2 — better | 15.6 |
| Further details — not scored | ||
| Size | 26 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Alejandro | Andrei Skobtsov |
Customer experience
WX Course
VMGPolar
In-app purchases
WX Course
No in-app purchases
VMGPolar
No in-app purchases
