# CYS Scan vs Reef Pilot

The clearest difference is update cadence: Reef Pilot at daily against CYS Scan's every 6 weeks. Reef Pilot also leads on iOS requirement (13.0 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.

CYS Scan ships an update every 6 weeks, Reef Pilot daily. The most recent releases landed on September 21, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | CYS Scan | Reef Pilot |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Daily** |
| Size | 36 MB | 23 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [LutraCAD B.V.](https://appshunter.io/developer/1499830940) | [ATI Aquaristik GmbH](https://appshunter.io/developer/1648857000) |

## What reviewers say

### CYS Scan

[App page](https://appshunter.io/ios/app/cys-scan/id6742559859)

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

**In-app purchases:** none


### Reef Pilot

[App page](https://appshunter.io/ios/app/reef-pilot/id6752355792)

**In-app purchases:** none


## Frequently asked questions

### Is CYS Scan free?

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

### Is Reef Pilot free?

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

### Do CYS Scan or Reef Pilot have ads?

Neither CYS Scan nor Reef Pilot shows ads.

### Which is updated more often, CYS Scan or Reef Pilot?

CYS Scan ships an update every 6 weeks, and Reef Pilot daily. Most recently, CYS Scan was updated on September 21, 2026 and Reef Pilot on October 2, 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.*