Comparison

easyTRX3 vs AirmarCAST™

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

Head to head
About

easyTRX3

Features
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Use this app for setup your easyTRX3 (newest generation of AIS Class B Transponder). You can enter all basic data and you can program advanced settings. A diagnostic view gives all information about the "health" of the unit. Received AIS ships will be shown in a ship list and additionally plotted on a map view on your iPhone or iPad.

About

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.

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

Screenshots

easyTRX34 screens
AirmarCAST™4 screens

Verdict

The call

The clearest difference is update cadence: AirmarCAST™ at every 3 months against easyTRX3's every 16 months. easyTRX3's advantage is iOS requirement (11.0 vs 16). On price, ads, in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

easyTRX3 ships an update every 16 months, AirmarCAST™ every 3 months. The most recent releases landed on October 26, 2026 and November 3, 2026 respectively.

Scorecard2 real differences · 8 level
easyTRX3 versus AirmarCAST™: the parameters behind the verdict, then further details
ParametereasyTRX3AirmarCAST™
PriceFreeFree
Rating—2.6 (5 ratings) — better
Positive reviews—25.0% of reviews
Number of ratings—5 — better
Update frequencyEvery 16 monthsEvery 3 months — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.0 — better16
Further details — not scored
Size52 MB112 MB
Age rating4+4+
DeveloperWeatherdock AGAirmar Technology Inc.

In-app purchases

None

easyTRX3

No in-app purchases

None

AirmarCAST™

No in-app purchases

Questions

Is easyTRX3 free?
easyTRX3 is free to download, with no in-app purchases.
Is AirmarCAST™ free?
AirmarCAST™ is free to download, with no in-app purchases.
Do easyTRX3 or AirmarCAST™ have ads?
Neither easyTRX3 nor AirmarCAST™ shows ads.
Which is updated more often, easyTRX3 or AirmarCAST™?
easyTRX3 ships an update every 16 months, and AirmarCAST™ every 3 months. Most recently, easyTRX3 was updated on October 26, 2026 and AirmarCAST™ on November 3, 2026.

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