# ESA Instruments vs Regatta Manager

The clearest difference is in-app purchases: ESA Instruments at none against Regatta Manager's 2. ESA Instruments also leads on iOS requirement (15.6 vs 18.0). Regatta Manager's advantage is update cadence (every 3 days vs every 6 months). On price, ads and device support there is nothing between them.

Both are free to download. Regatta Manager sells 2 in-app purchases, starting at $9.99 per month. ESA Instruments asks for nothing beyond the download.

ESA Instruments ships an update every 6 months, Regatta Manager every 3 days. The most recent releases landed on September 11, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | ESA Instruments | Regatta Manager |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 3 days** |
| Size | 3 MB | 99 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) | [Polar Sailing LLC](https://appshunter.io/developer/335952674) |

## What reviewers say

### ESA Instruments

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Regatta Manager

[App page](https://appshunter.io/ios/app/regatta-manager/id6738297374)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $9.99 | per month |
| Year Subscription | $99.99 | per year |


## Frequently asked questions

### Is ESA Instruments free?

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

### Is Regatta Manager free?

Regatta Manager is free to download, with in-app purchases available.

### Do ESA Instruments or Regatta Manager have ads?

Neither ESA Instruments nor Regatta Manager shows ads.

### Which is updated more often, ESA Instruments or Regatta Manager?

ESA Instruments ships an update every 6 months, and Regatta Manager every 3 days. Most recently, ESA Instruments was updated on September 11, 2026 and Regatta Manager 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.*