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App Store Apps > Sports > Race Master Sail Timer + Speed
Race Master Sail Timer + Speed icon

Race Master Sail Timer + Speed

by Kewlanu AB · Sports · Free
On the App Store since July 2015 · Data updated 2026-10-27

Race Master Sail Timer + Speed is made and published by Kewlanu AB. AppBrain is an independent app data site and isn't affiliated with Kewlanu AB. The app name, icon, screenshots and description belong to Kewlanu AB and are shown as published on the App Store.

AppBrain's verdict

EstablishedWell rated
Rating on App Store
4.40
133 ratings
Last updated
July 12, 2025
Size
51.1 MB

Users rate it well: 4.4 stars from 133 ratings. Its best ranking is #86 in Top Grossing, Sports in South Korea.

Official page on the App Store

User feedback

Ratings and reviews on the App Store

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Store listing

By Kewlanu AB, from the App Store
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Screenshots by Kewlanu AB, from the the App Store listing
Description by Kewlanu AB Written by the developer, not by AppBrain. Click to read.
Everybody knows that catching the start is essential in sailing. Finally there is a great Sailing Watch available for the iPhone and it works great with the Apple Watch.

This app provides a timer, speed and course monitoring with unique features and unparalleled ease of use for sail racing. When you hear or see a race signal just press Gun! - You can adjust if it is a 5, 4 or 1 minute warning afterwards! And if it was just a loud noise from a flapping sail and not a race signal you can easily jump back to the previous timer.

It defaults to the standard ISAF 5,4,1,0 sequence but it can handle arbitrary countdown from 30 minutes down to 0

Now you can focus on other things like wind (directly in the app - simply configure your own favourite weather on the config page) and other boats potentially giving you yet another edge!

** Please read more on the info "i" page in the app **

You can enable GPS and get Speed over Ground (SOG) and Course over Ground (COG) presented next to the timer to help you keep track of wind and speed in the seconds before and after start. The Wind page shows a graph of COG and SOG which can help you track wind shifts.

It is designed to work on iPhone with or without Apple Watch and a lot of people seem to be using it with iPads as well.

TIP: On the Watch it is recommended that you (at least temporarily) activate Resume to Last Used App so that you just have to raise your wrist to get the time left:
Settings->General->Activate on Wrist Raise->Resume to: Last Used App

The iPhone application also contains a convenient reference to starting signals and customisable local weather information.

HealthKit integration:
The app provides limited HealthKit integration and can optionally start a Sailing Workout activity during race start.

Summary of Features:
* Simply the best countdown timer ever if you ask us :)
* Really good compass!
* Most of the feature work on Watch and iPhone. Watch Series 2 needed for GPS without iPhone nearby.
* Current Course and Speed Over Ground based on GPS
* GPS based distance to line (still being tuned but works - within limits of GPS accuracy)
* Speed up / Slow down estimate for time to get to line
* History plot of Course and Speed Over Ground that allow you to track wind shifts
* Prevalent headings - advanced formula lists common headings to help identify windshifts
* Man Over Board function - it shows time, distance and compass bearing to the location the button was pressed (NOTE: intended as a secondary non life critical aid only)
* ISAF Race Signals reference - to help settle what that strange flag shown on the race committee means before the race starts...
* Choice of Magnetic or True course indication
* Lock function to prevent unwanted changes

NOTE: Please check the "i" page in the app for more info

This app offers 2 in app subscriptions to 1) support continued development and 2) to enable certain features:
• Payment will be charged to iTunes Account at confirmation of purchase
• Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period
• Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal
• Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase
• Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable

Please review our Terms of Service:
http://www.kewlanu.com/tos

DISCLAIMER: If you enable the GPS feature the app runs in the background for a limited time before it disables GPS.

"Continued use of GPS running in the background can dramatically decrease battery life."
Official page on the App Store

Safety and technology

Found in the app by AppBrain
Price
Free
App size
51.1 MB
Content rating
Everyone

Technologies used by Race Master Sail Timer + Speed

Releases

Updates seen on the App Store
Version
4.5.3
Launched
July 2015

No changelog data

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Rankings

App Store top charts
Highest rank
#86
Chart
Top Grossing
Sports
Country
South Korea

App Store Rankings for Race Master Sail Timer + Speed

Top rankings

Rank Country Category List
86 South Korea Sports Top Grossing

Ranking history in South Korea

About the app and developer

About Race Master Sail Timer + Speed

Race Master Sail Timer + Speed is a sports app developed by Kewlanu AB.

User Ratings

Race Master Sail Timer + Speed is rated 4.40 out of 5 stars. The rating is based on 130 ratings.

App Information

Race Master Sail Timer + Speed is freely available from the App Store. The app size is 51.11 MB. The latest version available is 4.5.3. The last update was on July 12, 2025.

Technical Requirements

The app has a content rating of Everyone. The app has been available on the App Store since July 2015.

Developer information for Kewlanu AB

Kewlanu AB

Address:

Frequently asked questions about Race Master Sail Timer + Speed

Is Race Master Sail Timer + Speed free?

Yes. Race Master Sail Timer + Speed is free on the App Store.

Is Race Master Sail Timer + Speed still available?

Yes. Race Master Sail Timer + Speed is on the App Store, and the last update we saw was on July 12, 2025.

How large is Race Master Sail Timer + Speed?

Race Master Sail Timer + Speed is 51.11 MB.

Is Race Master Sail Timer + Speed suitable for children?

App Store rates the content of Race Master Sail Timer + Speed as suitable for everyone.

How do people rate Race Master Sail Timer + Speed?

Race Master Sail Timer + Speed scores 4.40 out of 5 stars, from 133 ratings on the App Store.

Who made Race Master Sail Timer + Speed?

Race Master Sail Timer + Speed was developed by Kewlanu AB. It is listed in the sports category on the App Store.

What are the best alternatives to Race Master Sail Timer + Speed?

People looking at Race Master Sail Timer + Speed also look at these sports apps: Yacht Timer, Tactiqs, Sailing timer tactical, iRegatta, Voice Sail Start Timer.

Share Race Master Sail Timer + Speed

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Overview Alternatives Reviews Rankings Technology
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