Comparison

Race Sailing Tack Optimizer vs tack X Sailing Regatta Timer

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

Head to head
About

Race Sailing Tack Optimizer

Optimize your sailing performance on up/down courses. This app uses GPS to calculate your course over ground and speed, factoring in conditions like current. It provides visual cues for your tack and helps you sail the best VMG to reach marks faster.

Highlights
  • GPS-based course and speed calculation
  • Optimizes VMG for upwind and downwind sailing
  • Visual tack indicator (color-coded)
  • Considers current and wind conditions
  • Inspired by RaceMaster TacTic compass
Features
Read full description

Race Sailing App to help you be the fastest boat on the race course. Mostly for up/down courses. This app is inspired by the RaceMaster TacTic compass and gives you similar information. The course over ground and speed is determined by GPS this way taking fx current into consideration. You can see if you are sailing the best vmg when tacking and when you sail downwind fx in light conditions you also optimize the vmg for getting down to the gate/bottom mark first :) The display changes color telling you which tack you are on. So green means you are on a starboard tack. This is only when you are using the app in vmg mode where you have set the course towards the top mark. Use the app to help you giving you some more information while sailing. Remember that finding the stronger wind and doing the right decisions is more important than looking at instruments. Happy racing - and remember to have fun doing so ..../)

About

tack X Sailing Regatta Timer

This tactical app provides sailors with clear, concise data for racing and navigation. It offers features like distance to line, wind shift tracking, and start timing, optimized for visibility in all conditions. It also integrates with Apple Health for exercise tracking.

Highlights
  • Tactical pre-start data
  • Distance to line tracking
  • Wind shift and header tracking
  • Highly visible displays
  • Start timing to a tenth of a second
  • Apple Watch compatibility
  • Apple Health integration
Features
Read full description

An intuitive, easy to use tactical mobile application for sailors by sailors. Built and optimized for iPhone and Apple Watch. Maximum feedback with minimal user input. Easy to use interfaces with highly visible displays. Distance to line, tactical pre-start data, and a race dial that tracks wind shifts and headers! We are happy to announce that all these features are also available on the Apple Watch. At tack X, our mission is simple. First, we provide sailors clear and concise data in all conditions. Second, we foster the improvement of sailing skills and a lifetime of learning through technology. Not only do we write and test the software for our customers, we use it too. Every member of our team uses tack X. Our continuous field testing process means a better experience for you. Not a racing sailor? Not a problem there are features for you too! Use the nav display for position and course information. Use the "line manager" to calculate distances and times to coordinates. And more! Features for all devices: - Easily readable user interfaces with large, clear fonts optimized for viewing in bright sunlight even with polarized lenses - Time your start to a tenth of a second - Track your distance to the start line - Pre-start course guidance and tactics - Track wind shift lifts and headers - Line length, seconds to run line, seconds to line - Map view - Manual boat and pin input - Signal K for NMEA integration - Apple Health App integration - add to your daily exercise goal while you sail - Night Mode - Diagnostics - And much more ******** DOWNLOAD THE USER GUIDE ******** Available at the developer & support URL. Before leaving a review - please contact us at the support link - we are here to help! We are constantly improving tack X. We have many features planned for upcoming releases. If you have a feature you want to see let us know! *Note that this app uses your location in the background. Using location background mode may dramatically decrease battery life.

Screenshots

Race Sailing Tack Optimizer4 screens
tack X Sailing Regatta Timer4 screens

Verdict

The call

The clearest difference is review sentiment: Race Sailing Tack Optimizer at 25% against tack X Sailing Regatta Timer's 0%. Race Sailing Tack Optimizer also leads on price ($0.99 vs $4.99) and iOS requirement (12.0 vs 15.0). On update cadence, ads, in-app purchases and monetization model 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

Race Sailing Tack Optimizer costs $0.99 and tack X Sailing Regatta Timer $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.

Scorecard3 real differences · 7 level
Race Sailing Tack Optimizer versus tack X Sailing Regatta Timer: the parameters behind the verdict, then further details
ParameterRace Sailing Tack Optimizertack X Sailing Regatta Timer
Price$0.99 — better$4.99
Rating—2.0 (5 ratings) — better
Positive reviews25.0% of reviews — better0.0% of reviews
Number of ratings—5 — better
Update frequencyEvery 2 monthsEvery 2 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Apple Watch — better
Requires iOS12.0 — better15.0
Further details — not scored
Size11 MB16 MB
Age rating4+4+
DeveloperFlemming JensenPaul Wash

Customer experience

Race Sailing Tack Optimizer

Written reviews4 reviews
Positive25.0%
Neutral0.0%
Negative75.0%

tack X Sailing Regatta Timer

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews7 reviews
Positive0.0%
Neutral28.6%
Negative71.4%

In-app purchases

None

Race Sailing Tack Optimizer

No in-app purchases

None

tack X Sailing Regatta Timer

No in-app purchases

Questions

Is Race Sailing Tack Optimizer free?
Race Sailing Tack Optimizer costs $0.99, with no in-app purchases.
Is tack X Sailing Regatta Timer free?
tack X Sailing Regatta Timer costs $4.99, with no in-app purchases.
Do Race Sailing Tack Optimizer or tack X Sailing Regatta Timer have ads?
Neither Race Sailing Tack Optimizer nor tack X Sailing Regatta Timer shows ads.
Which is updated more often, Race Sailing Tack Optimizer or tack X Sailing Regatta Timer?
Race Sailing Tack Optimizer ships an update every 2 months, and tack X Sailing Regatta Timer every 2 months. Most recently, Race Sailing Tack Optimizer was updated on November 1, 2026 and tack X Sailing Regatta Timer on November 2, 2026.

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