Comparison

Speedsurf.app vs Gustly

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Speedsurf.app

Features
Read full description

Every knot, every gybe, every personal best, for windsurf, wingfoil, kitesurf, foil and bike. RECORD Press start and ride. On the water the screen is numbers: 2 s max in your discipline's colour, Avg 5×10 beside it, your last runs underneath. After every lap one short line tells you what it was worth, or only your records if you prefer. COMPARE Tap a record, your 500 m, your 2 s or your alpha, and see it on the map next to every other rider's own run of it: the riders of the day or the fastest ever at the spot. Switch riders on and off, in the day's replay and on the record maps alike. CYCLING A bike screen built for the handlebars: your speed big and in the colour of its zone, your riding average against your record from rides of 20 km or more, and bars that show how close you are. The map turns with you, the road ahead up, with the wind drawn over it. Change the unit, alerts and speech during the ride. ROUTE Plan a bike route like in a navigation app: type where to, pick an option, start. A banner shows the next turn, the voice tells you before it, and a new route is found if you go off course. APPLE WATCH Record on your wrist, with Water Lock on the water. Your ride lands on your iPhone when you stop. UPLOAD Every way a session gets to SpeedSurf on one screen. Fetch your Motion GPS or ESP-GPS logs over Wi-Fi, straight from the device, and tick the ones you want. Import a GPS file from Files. Choose who can see a session and what gear you were on before it goes up. Garmin, COROS and Strava come in by themselves. SPEEDSURF.APP Every session goes to speedsurf.app: rankings, records per discipline, your gear, and live tracking for the people on the beach. Filter the feed by sport, week, month or year, and sort by Max 2 sec, 500 m, Alpha 500 or distance. ALONGSIDE OTHER APPS Running another GPS app at the same time? SpeedSurf keeps your ride going, and only dims other apps' sound while it speaks.

About

Gustly

Features
Read full description

Gustly is a GPS session tracker for windsurfing, kitesurfing, windfoiling, and wingfoiling. Record on your phone or Apple Watch, import sessions from compatible GPS devices, and turn your tracks into useful performance insights. Session Analysis connects your results to the water. Select a speed run to see when it happened on the timeline and where it happened on the route. Scrub the chart and zoom in on the map to explore your session in detail. With Gustly you can: - Record GPS sessions on your phone or Apple Watch - Keep recording an active phone session when the screen is off - Import GPX and FIT files, including Garmin exports - Review 2-second speed, top 10-second runs, distance runs, Alpha 500, endurance results, and available gybe and tack insights - Browse your session history, routes, and totals - Save sessions locally and sync when you’re back online - Export your session data - Use iPad’s larger screen to explore maps, timelines, and results Location access is used to record active GPS sessions. With your permission, Health access supports Apple Watch heart-rate data and workout saving. Gustly is a performance-tracking tool, not a navigation or safety device.

Screenshots

Speedsurf.app4 screens
Gustly4 screens

Verdict

The call

The clearest difference is update cadence: Speedsurf.app at every 3 days against Gustly's weekly. On price, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Speedsurf.app ships an update every 3 days, Gustly weekly. Both last shipped on October 24, 2026.

Scorecard1 real difference · 5 level
Speedsurf.app versus Gustly: the parameters behind the verdict, then further details
ParameterSpeedsurf.appGustly
PriceFreeFree
Update frequencyEvery 3 days — betterWeekly
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, Apple WatchiPhone, iPad, Apple Watch
Requires iOS17.616.4 — better
Further details — not scored
Size13 MB83 MB
Age rating4+4+
DeveloperRon KoldeweidKonstantinos Kefalas

In-app purchases

None

Speedsurf.app

No in-app purchases

None

Gustly

No in-app purchases

Questions

Is Speedsurf.app free?
Speedsurf.app is free to download, with no in-app purchases.
Is Gustly free?
Gustly is free to download, with no in-app purchases.
Do Speedsurf.app or Gustly have ads?
Neither Speedsurf.app nor Gustly shows ads.
Which is updated more often, Speedsurf.app or Gustly?
Speedsurf.app ships an update every 3 days, and Gustly weekly. Most recently, Speedsurf.app was updated on October 24, 2026 and Gustly on October 24, 2026.

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