# NMEAconnect vs AirmarCAST™

The clearest difference is review sentiment: NMEAconnect at 86% against AirmarCAST™'s 25%. NMEAconnect also leads on rating (4.7 vs 2.6) and iOS requirement (12.0 vs 16). AirmarCAST™'s advantage is price (Free vs $3.99). On ratings volume, update cadence, ads and in-app purchases there is nothing between them.

AirmarCAST™ is free to download; NMEAconnect costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

NMEAconnect holds the better App Store score, 4.7 against 2.6. Both are backed by a comparable volume of ratings — 3 and 5 respectively. Written reviews point the same way: 86% of NMEAconnect's written reviews are positive against 25% of AirmarCAST™'s.

NMEAconnect ships an update every 5 months, AirmarCAST™ every 3 months. The most recent releases landed on October 21, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | NMEAconnect | AirmarCAST™ |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | **[4.7 (3 ratings)](https://appshunter.io/ios/app/nmeaconnect/id770189983/reviews)** | [2.6 (5 ratings)](https://appshunter.io/ios/app/airmarcast/id1492428585/reviews) |
| Number of ratings | 3 | **5** |
| Positive reviews | **85.7% of reviews** | 25.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 months** |
| Monetization | Paid | **Free** |
| Size | 3 MB | 112 MB |
| Requires iOS | **12.0** | 16 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [zapfware](https://appshunter.io/developer/348005795) | [Airmar Technology Inc.](https://appshunter.io/developer/1062316789) |

## What reviewers say

### NMEAconnect

[App page](https://appshunter.io/ios/app/nmeaconnect/id770189983)

This utility app acts as a server or bridge for NMEA data, connecting to various sources like TCP/UDP, BLE, and GPS. It organizes data into modules and can forward messages to other devices, acting as a multiplexer or repeater.

**Highlights:** NMEA 0183, NMEA 2000, SignalK, MQTT support, TCP/UDP, BLE, internal/external GPS, Logfile connection, NMEA multiplexer, hub, and switch, Server/repeater for NMEA messages, Background updates and logging, Message filtering and rules

**In-app purchases:** none


### 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


## Frequently asked questions

### Is NMEAconnect free?

NMEAconnect costs $3.99, with no in-app purchases.

### Is AirmarCAST™ free?

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

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

NMEAconnect is rated higher. NMEAconnect averages 4.7 out of 5 from 3 ratings, while AirmarCAST™ averages 2.6 from 5 ratings.

### Do NMEAconnect or AirmarCAST™ have ads?

Neither NMEAconnect nor AirmarCAST™ shows ads.

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

NMEAconnect ships an update every 5 months, and AirmarCAST™ every 3 months. Most recently, NMEAconnect was updated on October 21, 2026 and AirmarCAST™ on October 11, 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.*