# imOS CRX plus vs Hydor App

The clearest difference is rating: imOS CRX plus at 2.8 against Hydor App's 1.4. Hydor App's advantage is ratings volume (51 vs 6) and iOS requirement (11.0 vs 15.1). On price, review sentiment, update cadence and ads there is nothing between them.

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

imOS CRX plus holds the better App Store score, 2.8 against 1.4. That said, the two scores are not equally well evidenced: Hydor App has 51 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 12% of imOS CRX plus's written reviews are positive against 10% of Hydor App's.

imOS CRX plus ships an update every 5 months, Hydor App every 3 months. The most recent releases landed on October 11, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | imOS CRX plus | Hydor App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.8 (6 ratings)](https://appshunter.io/ios/app/imos-crx-plus/id1287312949/reviews)** | [1.4 (51 ratings)](https://appshunter.io/ios/app/hydor-app/id1577972620/reviews) |
| Number of ratings | 6 | **51** |
| Positive reviews | **11.8% of reviews** | 10.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 months** |
| Monetization | Free | Free |
| Size | 7 MB | 45 MB |
| Requires iOS | 15.1 | **11.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [illumagic](https://appshunter.io/developer/1139644730) | [Ferplast S.p.a.](https://appshunter.io/developer/1577972622) |

## What reviewers say

### imOS CRX plus

[App page](https://appshunter.io/ios/app/imos-crx-plus/id1287312949)

This app allows you to program and control LED lights on compatible devices via Bluetooth. You can define LED intensities at specific time points, choose gradual or instant transitions, and select from various lighting modes to customize your light settings.

**Highlights:** Bluetooth LED control, Program light intensities, Define time points for settings, Gradual or instant transitions, Multiple lighting modes, Customize light settings

**Features:** macOS Compatibility

**In-app purchases:** none


### Hydor App

[App page](https://appshunter.io/ios/app/hydor-app/id1577972620)

Remotely manage and configure your aquarium devices from anywhere. Set daily programs, create personalized device sets, and receive status notifications to keep your aquarium running smoothly.

**Highlights:** Remote Wi-Fi device management, Configure daily programs, Create personalized device sets, Real-time status notifications, Manage multiple devices

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is imOS CRX plus free?

imOS CRX plus is free to download, with no in-app purchases.

### Is Hydor App free?

Hydor App is free to download, with no in-app purchases.

### Which has better reviews, imOS CRX plus or Hydor App?

imOS CRX plus is rated higher. imOS CRX plus averages 2.8 out of 5 from 6 ratings, while Hydor App averages 1.4 from 51 ratings.

### Do imOS CRX plus or Hydor App have ads?

Neither imOS CRX plus nor Hydor App shows ads.

### Which is updated more often, imOS CRX plus or Hydor App?

imOS CRX plus ships an update every 5 months, and Hydor App every 3 months. Most recently, imOS CRX plus was updated on October 11, 2026 and Hydor App on October 15, 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.*