Comparison

Master vs Hull Speed

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

Head to head
About

Master

This navigation app provides rallye drivers with precise trip tracking, including distance and time counters, speed, altitude, and heading. It offers extensive customization options and integrates with Apple Watch for convenient control.

Highlights
  • Total and partial distance counters
  • Total and partial timers
  • Speed, altitude, and heading display
  • Customizable fonts and themes
  • Apple Watch companion app
  • Copilot Screen for second device connection
  • Flic button integration
Features
Read full description

Discover Master-Trip, the ultimate trip-master app for rallye drivers on iOS, offering unparalleled accuracy and complete customization for your trips. Key Features: • Total and partial distance counters • Total and partial timers • Quick correction buttons • Pause function • Forward or reverse mode With the handy counters, access a wealth of additional information such as speed, altitude, time, true and magnetic heading, longitude and latitude, current city, GPS signal, average speed, and battery status. Master-Trip's simple and user-friendly interface keeps you focused on the road while easily accessing the information you need. Personalize your experience with a variety of fonts and themes for the counters, creating an interface that matches your style. Control Master-Trip with a simple press of the Flic button. Configure up to 7 actions for 3 different pressure types, making navigation even smoother and more intuitive. With the companion app for Apple Watch, view all your counters and pause/resume your journey directly from your wrist, for an even more convenient experience. Take advantage of the "Copilot Screen" feature, allowing you to connect a second device so pilot and copilot can follow the same trip on their respective devices. Embark on an unmatched navigation journey with Master-Trip, your ultimate iOS rallye tool.

About

Hull Speed

This app provides sailors with a clear and accurate GPS speedometer displaying speed in knots. It features a live trend graph to help optimize sail trim and can show your theoretical hull speed for easy comparison. It is designed for privacy with no ads or tracking.

Highlights
  • Accurate GPS speed in knots
  • Live speed trend graph
  • Theoretical hull speed display
  • Apple Watch app with Keep Awake mode
  • Completely private, no tracking or ads
Features
Read full description

Hull Speed is a simple speedometer for sailors. It shows your speed over the water in knots — big, clear, and accurate — on your iPhone and Apple Watch, with nothing else to clutter the display. Built for trimming sails: make a small adjustment, then watch the live trend graph to see if the speed changed. FEATURES • Accurate GPS speed in knots, updated every second, using the same Doppler method as dedicated marine instruments — no paddlewheel to foul or calibrate. • A live speed graph on a steady, fixed scale, so a small gain from a trim change is easy to spot. • Enter your boat's waterline length and Hull Speed draws your theoretical hull speed right on the graph — see at a glance how close you are to it. • Apple Watch app with a Keep Awake mode that holds the screen on while you sail. • Completely private — your location is used only to compute speed on your device, and is never stored, sent, or shared. No accounts, no ads, no tracking.

Screenshots

Master4 screens
Hull Speed1 screens

Verdict

The call

The clearest difference is price: Hull Speed at Free against Master's $3.99. On review sentiment, update cadence, ads and in-app purchases 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

Hull Speed is free to download; Master costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Master ships an update every 3 weeks, Hull Speed every 5 weeks. The most recent releases landed on October 15, 2026 and October 7, 2026 respectively.

Scorecard2 real differences · 8 level
Master versus Hull Speed: the parameters behind the verdict, then further details
ParameterMasterHull Speed
Price$3.99Free — better
Rating—3.7 (3 ratings) — better
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings—3 — better
Update frequencyEvery 3 weeks — betterEvery 5 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPad, Apple Watch — betteriPhone, Apple Watch
Requires iOS16.1 — better16.6
Further details — not scored
Size19 MB1 MB
Age rating4+4+
DeveloperMaxime MadrauPeter Zink

Customer experience

Master

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Hull Speed

All ratings3 ratings
Positive66.7%
Neutral0.0%
Negative33.3%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Master

No in-app purchases

None

Hull Speed

No in-app purchases

Questions

Is Master free?
Master costs $3.99, with no in-app purchases.
Is Hull Speed free?
Hull Speed is free to download, with no in-app purchases.
Do Master or Hull Speed have ads?
Neither Master nor Hull Speed shows ads.
Which is updated more often, Master or Hull Speed?
Master ships an update every 3 weeks, and Hull Speed every 5 weeks. Most recently, Master was updated on October 15, 2026 and Hull Speed on October 7, 2026.

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