AirmarCAST™ vs SailboatData
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
AirmarCAST™
Configure and calibrate your boat's Bluetooth-enabled multisensors and modules directly from your mobile device. View real-time data on detailed gauges and perform advanced calibrations for speed, temperature, and attitude without extra hardware.
- Bluetooth sensor connection
- Real-time data display
- Intuitive navigation
- Speed, temperature, attitude calibration
- On-board GPS speed comparison
- Advanced speed calibration wizards
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Airmar® CAST™ connects to the Bluetooth®-enabled DST810, DX900+, WX300 multisensors and SmartBoat® modules on your boat, making sensor configuration and calibration easy with intuitive app navigation and real-time data from your multisensor. View data on detailed gauges and digital data screens, and perform speed, temperature, and attitude calibrations without the need for additional converters or cables. With CAST, you can configure your multisensor directly, regardless of the other displays and gauges on board. All data configurations and calibrations are stored in the multisensor and delivered on the NMEA2000® network. When used with DST810, you can calibrate basic or heel-compensated speed through water using your on-board GPS speed for comparison. Intuitive wizards guide you through multiple runs to correct for current. Or take it a step further to advanced speed calibration, with up to five heel angles and ten reference speeds. Until now, advanced speed calibration was only possible through expensive PC based software. With Airmar’s SmartBoat® modules, the CAST app delivers the fastest connection to the SmartView software for system configuration.
SailboatData
Access a comprehensive database of production sailboat specifications offline. Compare models, search by detailed criteria, and save favorites with personal remarks. Ideal for buyers and marine professionals alike.
- Offline sailboat database access
- Side-by-side model comparison
- Search by detailed specifications
- Save favorite sailboats and designers
- Add personal remarks to models
- Sync favorites and remarks via iCloud
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The world’s most recognized database for production sailboat specifications. This is the must-have app for those looking to purchase a sailboat as well as for DIYers, sailmakers, yacht brokers, marinas, riggers, and all other marine professionals. Unlike our website, the app allows access to our database without the need for an internet connection. After downloading, you can experience the full app functionality for the first 2 hours. After that, continue on with the free basic version or subscribe to keep full access. This costs as little as a good coffee (for a yearly subscription, our cheapest option) and supports us adding more useful features and extend the database. The current features include: • Scrollable list containing over 9,200 sailboat models. • Side-by-side sailboat model compare. • Scrollable lists with all designers, builders, and associations. • The scrollable lists have an alphabetic index for quick access. • Each list has a name search bar which updates the list as you type. • Ability to select sailboats, designers, builders, and associations as your favorite. • Toggle button to quickly switch between showing all or only your favorites. • Ability to add your personal remarks for each sailboat model. • Favorites and remarks are shared between all your devices using Apple iCloud. • Refined search by LOA, LWL, Hull type, Keel type, Displacement, Beam, Draft, Rig type, Years Built and all our Ratios. • Ability to sort the refined search results on any of the search parameters. • Settings to personalize displayed units and other features. As you scroll through the sailboat list and look at sailboat and designer details, the corresponding images are downloaded via internet. Once an image has been downloaded it is stored on your device; the maximum storage used is about 500MB.
Screenshots
Verdict
The clearest difference is review sentiment: SailboatData at 89% against AirmarCAST™'s 25%. SailboatData also leads on rating (4.8 vs 2.6) and ratings volume (293 vs 5). AirmarCAST™'s advantage is in-app purchases (none vs 4). On price, ads, device support and iOS requirement 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. SailboatData sells 4 in-app purchases, starting at $0.99 per month. AirmarCAST™ asks for nothing beyond the download.
SailboatData holds the better App Store score, 4.8 against 2.6. That said, the two scores are not equally well evidenced: SailboatData has 293 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 25% of AirmarCAST™'s written reviews are positive against 89% of SailboatData's.
AirmarCAST™ ships an update every 3 months, SailboatData every 4 weeks. The most recent releases landed on September 8, 2026 and September 24, 2026 respectively.
| Parameter | AirmarCAST™ | SailboatData |
|---|---|---|
| Price | Free | Free |
| Rating | 2.6 (5 ratings) | 4.8 (293 ratings) — better |
| Positive reviews | 25.0% of reviews | 88.9% of reviews — better |
| Number of ratings | 5 | 293 — better |
| Update frequency | Every 3 months | Every 4 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 16 | 15.5 — better |
| Further details — not scored | ||
| Size | 112 MB | 20 MB |
| Age rating | 4+ | 4+ |
| Developer | Airmar Technology Inc. | VMG Media, LLC |
Customer experience
AirmarCAST™
SailboatData
In-app purchases
AirmarCAST™
No in-app purchases
SailboatData
- 1 Monthly Access$0.991 Month
- 3 Monthly Access$1.993 Months
- 6 Monthly Access$2.996 Months
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- 12 Monthly Access$3.991 Year
Questions
Is AirmarCAST™ free?
Is SailboatData free?
Which has better reviews, AirmarCAST™ or SailboatData?
Do AirmarCAST™ or SailboatData have ads?
Which is updated more often, AirmarCAST™ or SailboatData?
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