# ACARiS vs Reef Pilot

The clearest difference is review sentiment: ACARiS at 50% against Reef Pilot's 0%. Reef Pilot's advantage is update cadence (daily vs every 2 months). On price, ads, in-app purchases and monetization model there is nothing between them.

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

ACARiS ships an update every 2 months, Reef Pilot daily. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | ACARiS | Reef Pilot |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **50.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Daily** |
| Monetization | Free | Free |
| Size | 44 MB | 31 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ACARiS GmbH](https://appshunter.io/developer/1472404254) | [ATI Aquaristik GmbH](https://appshunter.io/developer/1648857000) |

## What reviewers say

### ACARiS

[App page](https://appshunter.io/ios/app/acaris-horse-protector/id1472404255)

Monitor your horse's well-being remotely with AI-powered night vision cameras. Receive real-time alerts for potential health issues like colic or unauthorized access to the stable.

**Highlights:** AI-powered horse behavior analysis, Night vision camera with IR light, Real-time image and video streaming, Colic detection alerts, Unauthorized access warnings, Remote monitoring from smartphone/tablet

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

**In-app purchases:** none


### Reef Pilot

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

Control your modern saltwater aquarium lighting directly from your smartphone. Adjust intensity, color channels, and schedules for optimal coral and fish conditions.

**Highlights:** Bluetooth connection, Control StratonX aquarium light, Adjust lighting intensity, Manage color channels, Set time schedules, Intuitive smartphone control

**In-app purchases:** none


## Frequently asked questions

### Is ACARiS free?

ACARiS 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 ACARiS or Reef Pilot have ads?

Neither ACARiS nor Reef Pilot shows ads.

### Which is updated more often, ACARiS or Reef Pilot?

ACARiS ships an update every 2 months, and Reef Pilot daily. Most recently, ACARiS was updated on October 25, 2026 and Reef Pilot on October 28, 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.*