# AirmarCAST™ vs SailboatData

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 (298 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.

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 298 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 3 weeks. The most recent releases landed on October 11, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | AirmarCAST™ | SailboatData |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.6 (5 ratings)](https://appshunter.io/ios/app/airmarcast/id1492428585/reviews) | **[4.8 (298 ratings)](https://appshunter.io/ios/app/sailboatdata/id1545197438/reviews)** |
| Number of ratings | 5 | **298** |
| Positive reviews | 25.0% of reviews | **88.9% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 112 MB | 20 MB |
| Requires iOS | 16 | **15.5** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Airmar Technology Inc.](https://appshunter.io/developer/1062316789) | [VMG Media, LLC](https://appshunter.io/developer/1545197440) |

## What reviewers say

### AirmarCAST™

[App page](https://appshunter.io/ios/app/airmarcast/id1492428585)

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.

**Highlights:** Bluetooth sensor connection, Real-time data display, Intuitive navigation, Speed, temperature, attitude calibration, On-board GPS speed comparison, Advanced speed calibration wizards

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### SailboatData

[App page](https://appshunter.io/ios/app/sailboatdata/id1545197438)

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.

**Highlights:** 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

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Monthly Access | $0.99 | per month |
| 3 Monthly Access | $1.99 | per 3 months |
| 6 Monthly Access | $2.99 | per 6 months |
| 12 Monthly Access | $3.99 | per year |


## Frequently asked questions

### Is AirmarCAST™ free?

AirmarCAST™ is free to download, with no in-app purchases.

### Is SailboatData free?

SailboatData is free to download, with in-app purchases available.

### Which has better reviews, AirmarCAST™ or SailboatData?

SailboatData is rated higher. AirmarCAST™ averages 2.6 out of 5 from 5 ratings, while SailboatData averages 4.8 from 298 ratings.

### Do AirmarCAST™ or SailboatData have ads?

Neither AirmarCAST™ nor SailboatData shows ads.

### Which is updated more often, AirmarCAST™ or SailboatData?

AirmarCAST™ ships an update every 3 months, and SailboatData every 3 weeks. Most recently, AirmarCAST™ was updated on October 11, 2026 and SailboatData on October 24, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*