OnboardAssistant vs RaceData3
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OnboardAssistant
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OnboardAssistant is a handy little tool for yacht racing which will complement your onboard electronics and let you get rid of wet notes. It will let you ping sail changes, race times, changes in boat configuration, incidents, performance comments and any other important user-defined event which is not captured directly by your electronics. It also lets you take pictures, record audio and video while you are out on the water. Once your sailing session is complete you can review and update your notes and upload it all to the cloud. Once in the cloud, the data can be accessed by a number of thrid party tools such as SailingPerformance's RaceReplay. All your data will then be automatically be loaded and synchronized, ready to be analyzed! Terms of use available at: https://www.advancedsailingperformance.com/oba-terms-service.html
RaceData3
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Transform your Apple Watch device into a powerful sailing instrument display for Expedition Navigation Software. 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 Designed for Racing • Start activity to keep screen on • Water Lock to prevent accidental changes Compatibility • Requires the RaceData3 Bridge connected to Expedition Navigation Software TCP port. Download at https://www.fieldyachting.com/apps • Works over WiFi - no iPhone needed SUBSCRIPTION • £39.99/year auto-renewable subscription • Subscription auto-renews unless cancelled 24hrs before period end Subscription Features (Annual): • All Expedition channels • Multiple page layout options PERFECT FOR: • 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 REQUIREMENTS • Apple Watch on same WiFi network as Expedition computer • RaceData3 Bridge App running and connected to Expedition • watchOS 10.0 or higher SUPPORT • Developed by sailors, for sailors. RaceData3 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 Transform your Apple Watch into a flexible sailing instrument display for Expedition Navigation Software.
Screenshots
Verdict
The clearest difference is in-app purchases: OnboardAssistant at none against RaceData3's 1. OnboardAssistant also leads on iOS requirement (14.0 vs 16.6). On price, update cadence, ads and device support 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
Both are free to download. RaceData3 sells 1 in-app purchase, starting at $39.99 per year. OnboardAssistant asks for nothing beyond the download.
OnboardAssistant ships an update every 5 weeks, RaceData3 every 6 weeks. The most recent releases landed on September 20, 2026 and September 16, 2026 respectively.
| Parameter | OnboardAssistant | RaceData3 |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 weeks — better | Every 6 weeks |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad, iPod — better | iPhone, Apple Watch |
| Requires iOS | 14.0 — better | 16.6 |
| Further details — not scored | ||
| Size | 50 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | SailingPerformance S.L | Field Yachting Ltd |
In-app purchases
OnboardAssistant
No in-app purchases
RaceData3
- RaceData3 Annual$39.991 Year
Questions
Is OnboardAssistant free?
Is RaceData3 free?
Do OnboardAssistant or RaceData3 have ads?
Which is updated more often, OnboardAssistant or RaceData3?
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