# ESA Instruments vs Dinghy Sailing

The clearest difference is update cadence: Dinghy Sailing at every 9 days against ESA Instruments's every 6 months. ESA Instruments's advantage is iOS requirement (15.6 vs 18.0). 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, Dinghy Sailing every 9 days. The most recent releases landed on September 11, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | ESA Instruments | Dinghy Sailing |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/dinghy-sailing/id6741688974/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 9 days** |
| Monetization | — | Free |
| Size | 3 MB | 2 MB |
| Requires iOS | **15.6** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [ASTRA Yacht srl](https://appshunter.io/developer/516503620) | [Gordon Aspin](https://appshunter.io/developer/992850898) |

## What reviewers say

### ESA Instruments

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Dinghy Sailing

[App page](https://appshunter.io/ios/app/dinghy-sailing/id6741688974)

This app provides sailing navigation instruments, replacing expensive digital equipment. Mount your device to your vessel to display up to eight instruments, including race timers and flags. Customize your display by enabling, disabling, and rearranging instruments.

**Highlights:** Replaces expensive digital instruments, Displays up to eight instruments, Race timer functionality, Flag display, Customizable instrument layout, Vertical device mounting

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ESA Instruments free?

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

### Is Dinghy Sailing free?

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

### Do ESA Instruments or Dinghy Sailing have ads?

Neither ESA Instruments nor Dinghy Sailing shows ads.

### Which is updated more often, ESA Instruments or Dinghy Sailing?

ESA Instruments ships an update every 6 months, and Dinghy Sailing every 9 days. Most recently, ESA Instruments was updated on September 11, 2026 and Dinghy Sailing on September 16, 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.*