# GrowFlux vs HYDROS App

The clearest difference is review sentiment: HYDROS App at 62% against GrowFlux's 0%. HYDROS App also leads on ratings volume (24 vs 6). GrowFlux's advantage is rating (4.0 vs 3.5) and update cadence (every 5 weeks vs every 3 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.

GrowFlux holds the better App Store score, 4.0 against 3.5. Both are backed by a comparable volume of ratings — 6 and 24 respectively. Written reviews complicate that: 0% of GrowFlux's written reviews are positive against 62% of HYDROS App's, so the app with the better star average is not the one people write more warmly about.

GrowFlux ships an update every 5 weeks, HYDROS App every 3 months. The most recent releases landed on October 24, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | GrowFlux | HYDROS App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (6 ratings)](https://appshunter.io/ios/app/growflux/id1443967063/reviews)** | [3.5 (24 ratings)](https://appshunter.io/ios/app/hydros-app/id1455344294/reviews) |
| Number of ratings | 6 | **24** |
| Positive reviews | 0.0% of reviews | **62.3% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 3 months |
| Monetization | Free | Free |
| Size | 14 MB | 70 MB |
| Requires iOS | **9.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [GrowFlux Inc.](https://appshunter.io/developer/1443967062) | [Coralvue](https://appshunter.io/developer/1455344293) |

## What reviewers say

### GrowFlux

[App page](https://appshunter.io/ios/app/growflux/id1443967063)

Control and monitor your greenhouse with this app. Create custom light formulas with timed set points and manage up to 1,000 lights per zone. Monitor sensors for optimal growing conditions.

**Highlights:** Zoning capabilities, Light formula creation, Sensor monitoring, Access point management, Control multiple lights per zone

**Features:** macOS Compatibility

**In-app purchases:** none


### HYDROS App

[App page](https://appshunter.io/ios/app/hydros-app/id1455344294)

Easily monitor and control your aquarium's vital parameters like temperature, pH, and salinity. Manage all your connected devices, including ATOs, lights, and pumps, with a user-friendly interface. Quick setup with preset configurations means no coding is required to get your system running.

**Highlights:** Monitor temperature, ORP, pH, salinity, Control ATO, lights, heaters, pumps, User-friendly interface, Quick setup with presets, Manage multiple devices and aquariums, Set schedules and create modes

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

**In-app purchases:** none


## Frequently asked questions

### Is GrowFlux free?

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

### Is HYDROS App free?

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

### Which has better reviews, GrowFlux or HYDROS App?

GrowFlux is rated higher. GrowFlux averages 4.0 out of 5 from 6 ratings, while HYDROS App averages 3.5 from 24 ratings.

### Do GrowFlux or HYDROS App have ads?

Neither GrowFlux nor HYDROS App shows ads.

### Which is updated more often, GrowFlux or HYDROS App?

GrowFlux ships an update every 5 weeks, and HYDROS App every 3 months. Most recently, GrowFlux was updated on October 24, 2026 and HYDROS App on October 29, 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.*