# ESA Instruments vs Lights Out Sailing

The clearest difference is in-app purchases: ESA Instruments at none against Lights Out Sailing's 2. ESA Instruments also leads on device support (3 vs 1). Lights Out Sailing's advantage is update cadence (every 5 weeks vs every 6 months). On price, ads and iOS requirement there is nothing between them.

Both are free to download. Lights Out Sailing sells 2 in-app purchases, starting at $13.49 per month. ESA Instruments asks for nothing beyond the download.

ESA Instruments ships an update every 6 months, Lights Out Sailing every 5 weeks. The most recent releases landed on October 16, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | ESA Instruments | Lights Out Sailing |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.5 (8 ratings)](https://appshunter.io/ios/app/lights-out-sailing/id6450532592/reviews)** |
| Number of ratings | — | **8** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 5 weeks** |
| Monetization | — | Subscription |
| Size | 3 MB | 50 MB |
| Requires iOS | **15.6** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Astra Yacht](https://appshunter.io/developer/516503620) | [WhitServe LLC](https://appshunter.io/developer/1693756173) |

## What reviewers say

### ESA Instruments

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Lights Out Sailing

[App page](https://appshunter.io/ios/app/lights-out-sailing/id6450532592)

Enhance your sailing experience with real-time data and race tools. Capture onboard footage, track speed and heading, and perfect your race starts with precise metrics. Customize your interface and sync with other devices for a connected sailing adventure.

**Highlights:** Onboard footage capture, Real-time speedometer and compass, Distance to line metrics, Customizable race layouts, Fleet synchronization, Onboard camera sharing

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lights Out Sailing | $13.49 | per month |
| Lights Out Sailing | $98.99 | per year |


## Frequently asked questions

### Is ESA Instruments free?

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

### Is Lights Out Sailing free?

Lights Out Sailing is free to download, with in-app purchases available.

### Do ESA Instruments or Lights Out Sailing have ads?

Neither ESA Instruments nor Lights Out Sailing shows ads.

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

ESA Instruments ships an update every 6 months, and Lights Out Sailing every 5 weeks. Most recently, ESA Instruments was updated on October 16, 2026 and Lights Out Sailing 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.*