# ESA Instruments vs NMEAkit

The clearest difference is update cadence: NMEAkit at every 5 days against ESA Instruments's every 6 months. NMEAkit also leads on iOS requirement (12.0 vs 15.6). On price, ads, in-app purchases and device support there is nothing between them.

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

ESA Instruments ships an update every 6 months, NMEAkit every 5 days. The most recent releases landed on September 11, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | ESA Instruments | NMEAkit |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.0 (2 ratings)](https://appshunter.io/ios/app/nmeakit/id1511391197/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 5 days** |
| Monetization | — | Free |
| Size | 3 MB | 16 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ASTRA Yacht srl](https://appshunter.io/developer/516503620) | [Michael Liesenberg](https://appshunter.io/developer/1214386696) |

## What reviewers say

### ESA Instruments

[App page](https://appshunter.io/ios/app/esa-instruments/id959518561)

**Features:** macOS Compatibility

**In-app purchases:** none


### NMEAkit

[App page](https://appshunter.io/ios/app/nmeakit/id1511391197)

This app calibrates wind, pitch, and roll data when used with a NMEAkit device. It offers a rotating mast option to compensate for mast orientation, making data available via NMEA2000 or NMEA0183 gateways.

**Highlights:** Calibrate wind, pitch, and roll, Rotating mast option, Compensate mast orientation, NMEA2000/0183 gateway compatibility, Works with NMEAkit device

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

**In-app purchases:** none


## Frequently asked questions

### Is ESA Instruments free?

ESA Instruments is free to download, with no in-app purchases.

### Is NMEAkit free?

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

### Do ESA Instruments or NMEAkit have ads?

Neither ESA Instruments nor NMEAkit shows ads.

### Which is updated more often, ESA Instruments or NMEAkit?

ESA Instruments ships an update every 6 months, and NMEAkit every 5 days. Most recently, ESA Instruments was updated on September 11, 2026 and NMEAkit on September 8, 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.*