Comparison

Buoy Zone vs RaceData2

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

Head to head
About

Buoy Zone

This app simplifies yacht racing course setup for sailing clubs and race officers. It allows for real-time course sharing, mark laying guidance with compass directions, and participant tracking on a map. Streamline race management and focus on the competition.

Highlights
  • Real-time course sharing
  • Mark laying guidance
  • Participant tracking on map
  • Compass direction and bearing
  • Distance calculation
  • Course updates
Features
Read full description

Buoy Zone is designed to help sailing clubs, Race Offices and support vessels, lay yacht racing courses. The Race Officer sets a course from the start boat and shares this course with their support boats and other participants. The participants can see the course on a map, get course updates in real-time and all support boats can also been seen on the map. Any boats laying marks can zoom in on the map and see exactly where to lay their marks, or tap on a mark for real-time compass direction, bearing and distance. Take the time and pain out of setting an accurate course, and get on with the awesome racing.

About

RaceData2

This app transforms your iOS device into a sailing instrument display, showing real-time navigation and performance data from Expedition software. It offers customizable data pages, advanced graphs, and remote control capabilities for racing sailors.

Highlights
  • Real-time sailing data display
  • Customizable data pages and layouts
  • Advanced data graphs with trend analysis
  • Remote control of Expedition software
  • Apple Watch data display
  • Night mode and screen-always-on option
Features
Read full description

Transform your iPhone, iPad or Apple Watch device into a powerful sailing instrument display for Expedition Navigation Software and NMEA0183 data. RaceData2 (RD2) puts critical racing data at your fingertips, delivering real-time performance metrics from Expedition directly to your iOS phone or tablet via WiFi. Bonus is the bundled Apple Watch RaceData3 (RD3). Whether you're racing around the buoys or offshore, stay connected to navigation data with customisable, easy-to-read displays designed for racing. KEY FEATURES Real-Time Data Display - View any Expedition data channels including User and Alt channels with automatic name detection - Multiple data pages with swipe navigation - Customisable grid layouts and data colours - Live data status indicators show connection quality at a glance - Dark theme optimised for day and night sailing Advanced Data Graphs (Subscription) - Track performance trends with real-time graphs - Adjustable time windows: 1, 5, 10, or 30 minutes - Moving Average (MA) and Exponential Moving Average (EMA) trend lines - Visual shading between actual data and trends - Monitor multiple channels simultaneously Race Commands (Subscription only and not with NMEA0183, A+T, iDataNet) - Control Expedition from your device - Ping start line ends (Port/Starboard) - Ping new marks, and move the Active Mark to your bow/gps - Set up and create W/L race courses - Set race timer (1, 4, 5, 10 minutes or custom) - Sync timer to nearest minute - Kill race timer - Mark management - set W/L course, ping new or active mark, advance to next, or return to previous - Set Expedition Events - Emergency MOB (Man Overboard) broadcast - Command acknowledgement (requires Expedition 12.6+) Designed for Racing - Screen always-on option keeps data visible - Night mode - Use proximity sensor to turn screen off when iPhone is stowed - App pinning locks RD2 on screen - Data lock prevents accidental changes - Page lock maintains your preferred layout and allows fullscreen - Demo mode for testing setup without Expedition connection - Simple, clear RD2 watch app data pages Compatibility - Engineered to work with Expedition Navigation Software - Any system broadcasting Expedition format UDP data such as A+T Instruments - iDataNet for legacy systems - NMEA0183 UDP data - Works over standard WiFi networks Apple watch - Paired with your iPhone, receive and display all data. - With the RaceData3 Bridge PC application, your iPhone can request and receive Expedition data over WiFi. Leave your phone ashore. Visit https://www.fieldyachting.com/apps to download the Windows app. SUBSCRIPTION Free Features: - Display up to 4 channels (TWS, TWD, HDG, BSP) - Single 2x2 data page - Demo mode Subscription Features (Annual): - All Expedition channels - Multiple page layout options - Real-time data graphs with trend analysis - Command and MOB sending to Expedition PERFECT FOR: - Racing sailors who need navigation data away from the nav station - Crew members who need specific data for their position - Navigators wanting a wireless repeater display - Coaches monitoring performance from chase boats - Anyone using Expedition who wants mobile data access - Additional on deck or below data display - Add a waterproof case to your iOS device and have a new on-deck display REQUIREMENTS - iOS device on same WiFi network as Expedition computer - Expedition, iDataNet or NMEA0183 broadcasting UDP data on the network - Expedition configured to broadcast UDP data (RD2) and TCP data (RaceData2 Bridge Windows app) - iOS 16.6 or higher - watchOS 10.0 or higher SUPPORT Comprehensive user guide available at: https://www.fieldyachting.com/apps Developed by sailors, for sailors. RaceData2 is actively maintained by Field Yachting Ltd with regular updates based on user feedback from the racing community. View terms of use here: https://www.fieldyachting.com/app-store-terms-of-use

Screenshots

Buoy Zone4 screens
RaceData24 screens

Verdict

The call

The clearest difference is review sentiment: RaceData2 at 100% against Buoy Zone's 25%. RaceData2 also leads on rating (5.0 vs 3.0) and update cadence (every 5 days vs fortnightly). Buoy Zone's advantage is iOS requirement (15.6 vs 17.0). On price, ratings volume, 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

Both are free to download. Buoy Zone sells 2 in-app purchases, starting at $8.49 per month and RaceData2 sells 1 in-app purchase, starting at $69.99 per year. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

RaceData2 holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 3 and 2 respectively. Written reviews point the same way: 25% of Buoy Zone's written reviews are positive against 100% of RaceData2's.

UpkeepUpdate frequency

Buoy Zone ships an update fortnightly, RaceData2 every 5 days. The most recent releases landed on November 6, 2026 and October 30, 2026 respectively.

Scorecard4 real differences · 6 level
Buoy Zone versus RaceData2: the parameters behind the verdict, then further details
ParameterBuoy ZoneRaceData2
PriceFreeFree
Rating3.0 (3 ratings)5.0 (2 ratings) — better
Positive reviews25.0% of reviews100.0% of reviews — better
Number of ratings3 — better2
Update frequencyFortnightlyEvery 5 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPad, iPodiPhone, iPad, Apple Watch
Requires iOS15.6 — better17.0
Further details — not scored
Size90 MB7 MB
Age rating4+4+
DeveloperOCEAN LABS LIMITEDField Yachting Ltd

Customer experience

Buoy Zone

All ratings3 ratings
Positive33.3%
Neutral33.3%
Negative33.3%
Written reviews8 reviews
Positive25.0%
Neutral25.0%
Negative50.0%

RaceData2

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

Buoy Zone

Subscriptions2
  • Race Officer Monthly$8.491 Month
  • Race Officer Annual$43.991 Year
1 purchases

RaceData2

Subscriptions1
  • RD2 Annual Subscription$69.991 Year

Questions

Is Buoy Zone free?
Buoy Zone is free to download, with in-app purchases available.
Is RaceData2 free?
RaceData2 is free to download, with in-app purchases available.
Which has better reviews, Buoy Zone or RaceData2?
RaceData2 is rated higher. Buoy Zone averages 3.0 out of 5 from 3 ratings, while RaceData2 averages 5.0 from 2 ratings.
Do Buoy Zone or RaceData2 have ads?
Neither Buoy Zone nor RaceData2 shows ads.
Which is updated more often, Buoy Zone or RaceData2?
Buoy Zone ships an update fortnightly, and RaceData2 every 5 days. Most recently, Buoy Zone was updated on November 6, 2026 and RaceData2 on October 30, 2026.

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