Start timers, tactical apps, post-race analysis and the instruments with apps attached — what's current, what's gone quiet, and what each one costs.
By the Sail Tactician teamUpdated 11 min read
We make Sail Tactician, one of the apps in this guide, so we have a stake in the answer. We don't accept free products or payment for placement, and we say where something else is the better buy. Details of other products are from their makers and retailers unless we say we've used them. How we write these
Four jobs, four kinds of app
"Sailing app" means very different things. Before comparing them, decide which job you're hiring one for:
Getting off the line. A countdown that syncs to the committee boat, then distance to the line, time to burn and which end is favoured. This has to be on your wrist or a mounted screen.
Sailing the course. Speed, heading, wind shifts, VMG and laylines during the race.
Learning afterwards. Replaying the track, measuring your tacks, and finding out where the race was lost.
Planning. Forecasts and routing, mostly before you leave the dock.
Most apps do one or two of these well. The interesting ones connect the first three, because the debrief is only as good as what was recorded on the water.
Race-day apps for Apple Watch and iPhone
Best for racing and the debrief
Sail Tactician
Free · Pro $4.99/mo or $29.99/yr
The deepest debrief here. Live on Apple Watch and iPhone; races from Garmin, COROS and other watches come in by import.
Built for the Apple Watch and iPhone together. On the watch: a countdown with spoken calls that syncs to the nearest minute, start-line pings with the favoured end, distance to the line and time to burn, then VMG with tack and gybe calls, a wind-shift readout with a haptic tap when the breeze moves, and an over-the-line warning after the gun. On an Ultra, the Action button starts and syncs the countdown. A mounted iPhone can be the big screen, driven from the watch.
Afterwards the iPhone replays the race and its Coach ranks what cost you most, in seconds at your own speed — an overstood layline, slow tacks, a late start — and says what went well. You can compare a race against another Sail Tactician sailor's.
It isn't only for Apple Watch wearers. Race with a Garmin, COROS, Suunto, Polar or a Vakaros, and import the file afterwards — FIT, GPX, TCX, CSV, NMEA and VKX all come in, and get the same debrief as a race recorded in the app (see how to import). It isn't only for racing, either: a Cruise mode turns the phone and watch into a free instrument panel — speed, heading, distance, heel and trim on a mounted phone — and a logbook for day sails, which suits older boats with no electronics. Going the other way, races export as GPX, TCX, CSV and KML, the formats Strava, Garmin tools and Google Earth read. There's no account and no server: races sync through your own iCloud.
Good
Start, tactics and debrief in one app
Coaching priced in seconds lost
Imports from other watches and instruments
Guided training drills with spoken calls
Cruise mode: a free instrument panel and logbook for boats without electronics
Not so good
Live tools need an Apple Watch or iPhone; other watches are import-only
No live input from boat instruments
Line, VMG and shifts need Pro after the free tier
Flaws, not dealbreakers
The live race tools run only on Apple Watch and iPhone — a Garmin or COROS gets the debrief by import, not the start line on the wrist. Imports from other devices are in beta. It can't read live data from the boat's instruments, and nobody captures the windward mark mid-race — you drop it on the map afterwards. Downwind legs get no coaching findings yet, and beat coaching and training scoring are labelled beta.
Polished and actively developed, at more than twice the yearly price.
An actively developed iPhone and Apple Watch app (version 3.1.3 shipped in September) covering the start sequence with one-tap sync, start-line bias and distance, a compass with layline indicators and tack-angle capture, a six-hour wind forecast, and recorded sessions you can export as GPX, turn into track videos, or send to Strava. If shareable track videos and Strava matter to you, it's a strong choice. It costs more than twice Sail Tactician's yearly price.
Pay once and plug into the boat's instruments — then work out which add-ons you need.
A long-running family from Zifigo. The phone apps cover the start line, VMG and performance readouts, and take NMEA 0183 data from boat instruments over Wi-Fi, with optional add-ons for AIS, race analysis and the watch. iRegatta Watch is a separate standalone watch app for dinghy sailors: a countdown that syncs to the minute, speed and course, and a lift indicator. Paying once rather than subscribing appeals to many sailors; the pile of add-ons takes some working out.
A trusted countdown; distance to the line costs extra.
With over 130 ratings it's the most-reviewed timer on the store: a 5-4-1-0 or custom countdown with a gun sync, GPS speed and course, a wind-shift history graph and a race-signals reference, on the iPhone and Apple Watch. Distance to the line is in the higher paid tier. Reviewers like the timer and find the advanced features buried.
Superb with a networked keelboat; no use without one.
Tactiqs reads the boat's own instruments through a wireless NMEA interface and turns them into 52 performance metrics on the iPhone, iPad and Apple Watch, with post-race analysis including sail usage. It's built for keelboats, offshore racing and performance cruisers — a different job from a dinghy sailor's wrist timer, and very good at it.
A handful of simple, mostly free countdown apps are worth knowing about: Regatta Countdown Timer (free, with a start line and layline assistant), Watch Sailing Timer (a paid, Action-button-friendly countdown), and Sailing Timer Tactical (free, with a spoken countdown and distance to the line). Newer apps such as SailStats and SailSync AI add recording, fleet sharing and — in SailSync's case — AI-written debriefs bought with credits.
On a Garmin
Garmin's quatix watches have racing built in: a regatta timer, a starting line you set by marking each end, distance to the start, time to burn, and tack assist. Connect IQ apps such as Sailing Basics (windward-mark navigation) and a free Sail Racer app (VMG upwind and angle off the wind) fill some of the gaps. What Garmin doesn't give you is a racing debrief — Garmin Connect treats a race like a run. That's where an analysis app comes in: Sail Tactician imports the FIT file a Garmin records. For more on the trade-off, see Apple Watch vs Garmin quatix.
Post-race analysis
Recording a track is easy. Turning it into something that tells you what to do differently is the hard part, and the apps take very different approaches.
ChartedSails (web, iOS, Android) — free recording and fleet replay; Racer Pro at $349 a year adds leg and maneuver analysis, and team and club plans up to $1,799 a year add live coaching across up to 30 boats. It imports Garmin, Velocitek and Vakaros files. The pick for a coach or a fleet.
Vantage Sailing (iPhone, iPad, Mac) — $99.99 a year, or $149.99 for coaches. Automatic analysis, wind detection and video with data overlay, from Sailmon, Vakaros and Garmin files or its own recording.
RaceQs (iOS, Android) — free 3D replays of one boat or a whole fleet, with laylines and distance gained or lost across tacks.
Sail Tactician — the debrief is built in rather than a separate subscription, and works on races imported from Garmin, COROS, Suunto and Vakaros as well as its own. The Coach ranks findings by the seconds they cost, the start gets its own analysis, and every beat is drawn inside its tacking cone. Comparing against another boat works with another Sail Tactician sailor's shared race; for a whole fleet, the platforms above do more.
Apps that come with an instrument
Vakaros and Velocitek sell dedicated start-line and performance instruments, and their apps exist mainly to set up the device and pull its logs off. They're excellent at the start — 25 Hz GPS on a bulkhead-mounted screen — and cost $750 to $1,250 before any subscription. Vakaros bought Sailmon in 2025 and has since discontinued the Sailmon MAX. We've written a whole guide on whether you need one. Their logs can come into Sail Tactician too: Vakaros VKX files bring the gun and both line ends with them.
Weather and routing
Not racing apps, but every racer has one. Windy is free with an inexpensive premium tier and over a dozen forecast models. PredictWind runs from a free tier to $249 a year for weather routing. SailGrib (Android and iPad) adds routing and a start app, SailGrib RS. At the serious end, Expedition ($1,295, Windows) is what professional navigators use.
Side by side
Watch
Start line & burn
Wind shifts
Post-race coaching
Imports other devices
Price
Sail Tactician
Apple Watch; Garmin & COROS by import
Yes
Tracked live
Ranked in seconds
FIT, GPX, TCX, VKX, NMEA, CSV
Free / $29.99 yr
SailingWatch
Apple Watch
Yes
—
Track & video
—
$69.99 yr
iRegatta Pro + Watch
Apple Watch
Line (phone)
Lift indicator
Add-on
Live NMEA
$22.98 + add-ons
Race Master
Apple Watch
Top tier
History graph
—
—
Free + tiers
Tactiqs
Apple Watch
—
From instruments
Yes
Live NMEA
Free app + interface
Garmin quatix 8
Garmin
Yes
Tack assist
—
—
$1,199 watch
ChartedSails
—
—
—
Fleet & coach
Garmin, Velocitek, Vakaros
Free / $349 yr
Vantage Sailing
—
—
Detected after
Automatic + video
Sailmon, Vakaros, Garmin
$99.99 yr
"—" means we found no such feature on the app's listing or website. Prices in USD, October 2026.
What's free, and what you pay for
Almost every racing app is free to download, but "free" means very different things. Here's what each one gives you before you pay, and what the money buys.
Free
Paid
Price
Sail Tactician
Countdown with spoken calls and sync, compass, live speed and heading, no-sail zone, your first five races with the full debrief, tacking drills, import and export
Start line, distance to line and time to burn, VMG with tack calls, wind-shift tracking, every race in your history, all drills, race comparison
$4.99/mo or $29.99/yr, first month free
SailingWatch
Free download
Premium features by subscription; the listing doesn't say which are free
$9.99/mo or $69.99/yr
iRegatta
A trial — GPS and instrument input stop after four minutes
iRegatta Pro unlocks the app; add-ons for the watch, NMEA, AIS and race analysis
Pro $19.99 once, add-ons $1.99–9.99, Watch $2.99
Race Master
Countdown with gun sync, GPS speed and course, signals reference
A wireless interface to the boat's instruments, which it needs
Interface priced separately
Garmin quatix
All built-in sailing features, once you own the watch
The watch
$1,199.99+
ChartedSails
Unlimited recording, track traces and fleet replay
Leg and maneuver analysis (Racer Pro); team, club and fleet coaching plans
$349–1,799/yr
Vantage Sailing
—
Automatic analysis, wind detection, video overlay
$99.99/yr, coaches $149.99/yr
From each app's App Store listing or pricing page, 6 October 2026. "—" means nothing listed.
Apps that have gone quiet
Before you pay for a subscription, check the "Version History" on the App Store listing. Some well-known names haven't been updated in years: Sail Racer's iOS app was last updated in November 2018, tack X in May 2022, and SAP's Sail Insight in April 2021. Kattack has closed. They may still work, but an app that hasn't kept pace with iOS and watchOS is a risk on race day.
Where Sail Tactician fits
One instrument, from the gun to the debrief
Most racers end up with a timer on the wrist, something else on the phone, and a third service for analysis. Sail Tactician is built so the watch, the mounted phone and the debrief are one thing: the line you pinged before the start is the line your start is judged against afterwards, and the wind it tracked through the race is labelled with where it came from. It's free to try on your first five races, debrief included.
It depends how far you want free to go. For a countdown alone, Race Master and Regatta Countdown Timer are free, and Regatta Countdown Timer adds a start line at no cost. Sail Tactician's free tier is the countdown with spoken calls and sync, a compass, and live speed and heading — and it records every race, with the full debrief on your first five. As you get more serious, Pro adds the start line, VMG, wind-shift tracking and your whole history, so you grow into it rather than switching apps. Most other apps keep their start-line and analysis features behind a payment too; see the table above.
Do I need boat instruments to use a racing app?
No. Sail Tactician, SailingWatch, Race Master and iRegatta Watch all work from the GPS in your watch or phone. Instrument-based apps such as Tactiqs need the boat's NMEA network and an interface.
Is there a sailing racing app for Android?
Sail Racer, iRegatta's Android version, RaceQs, Vakaros Connect, Sailmon and ChartedSails all run on Android. Sail Tactician is Apple-only.
Can I analyse a race I recorded on another app or watch?
Usually, if you can export a FIT or GPX file. Sail Tactician imports FIT, GPX, TCX, CSV, NMEA 0183 and Vakaros VKX files; ChartedSails and Vantage Sailing take files from several instruments too.
Sources
US App Store listings for SailingWatch, iRegatta, iRegatta Pro, iRegatta Watch, Race Master Sail Timer + Speed, Tactiqs, Regatta Countdown Timer, Sailing Timer Tactical, SailStats, SailSync AI, Vantage Sailing, Sail Racer, tack X and Sail Insight (accessed 6 Oct 2026). chartedsails.com/pricing. Garmin quatix 8 owner's manual. Garmin Connect IQ developer forums. Vakaros and Velocitek product pages. Scuttlebutt on Vakaros's acquisition of Sailmon (Mar 2025). PredictWind and Windy pricing via yacht.de (2026) and the Windy community forum. Expedition pricing via North U.
What changed
First published. Prices and specifications checked against makers' and retailers' sites.
Put a racing instrument on your wrist.
Start line, wind shifts and VMG at a glance, and a coach in your pocket afterwards. Free to download for Apple Watch and iPhone, with the full debrief on your first five races.