HYDROS App vs FluvalConnect
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
HYDROS App
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.
- 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
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Use the CoralVue HYDROS App to control and monitor HYDROS aquarium devices from your smartphone or tablet. The user-friendly interface allows you to easily monitor your aquarium's temperature, ORP, pH, alkalinity levels, salinity, and more. With just one tap, you can control your ATO, lights, heaters, pumps, skimmer, calcium reactor, RO/DI units, etc. Setup is quick and easy! With 18+ different preset configurations and growing, it will take only minutes to get all of your equipment set up and running, with no coding required. SUPPORTED DEVICES: -HYDROS Control X2, X4, XS, XD, X3, X4, XP8, X10 -HYDROS Kraken -HYDROS Minnow -HYDROS Launch -HYDROS WaveEngine, WaveEngine LT -IceCap Gyre Dual Pump WiFi Controller DISCOVER MORE: -Intuitive interface features multiple view options such as tile, text, or graph -Adjust your view settings to light mode, dark mode, or auto, which will automatically adjust to your mobile device's settings -Ability to manage multiple HYDROS devices and aquariums from one single-screen -Monitor and control WiFi outlets -Set schedules and create modes -Archive controller settings STAY CONNECTED We welcome you to join our HYDROS community at forum.coralvuehydros.com where you can ask questions, learn more about your HYDROS devices, and connect with other aquatic hobbyists like yourself.
FluvalConnect
Control and customize your aquatic environment with this app. It allows for independent color channel adjustments, programmable light cycles, and preset environments for a captivating aquarium experience. Compatible with various Fluval LED lighting systems.
- Manual, Auto, and Pro operating modes
- Independent color channel control
- Programmable 24-hour light cycle
- Preset environments
- Dynamic effects
- Multiple device control
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The intuitive FluvalConnect app unlocks a world of possibilities, allowing you to customize an immersive aquatic experience that captivates and inspires. For use with the following Fluval devices: - Aquasky 3.0 / 2.0 LED - Plant PRO LED - Plant 4.0 / 3.0 LED - Plant Nano 4.0 / 3.0 LED - Reef 4.0 LED - Reef Nano 4.0 LED - Marine 3.0 LED - Marine Nano 3.0 LED - Siena 2.0 Aquarium LED / Siena Aquarium LED - Roma 2.0 Aquarium LED / Roma Aquarium LED - Shaker 2.0 Aquarium LED / Shaker Aquarium LED - V&V Aquarium LED Key features: - Manual / Auto / Pro operating modes - Independent color channel control and customization - Programmable 24-hour light cycle - Preset environments - Dynamic effects (Aquasky 3.0 / 2.0 LED, all 4.0 generation LEDs, all 2.0 generation aquarium LEDs) - Multiple device control (Aquasky 3.0 LED) Mobile device requirements: - iOS 13.0 and above. - Bluetooth version BLE 4.0 and above (Optional Wi-Fi 2.4 GHz connectivity – Aquasky 3.0 LED)
Screenshots
Verdict
The clearest difference is review sentiment: HYDROS App at 64% against FluvalConnect's 18%. HYDROS App also leads on rating (4.1 vs 2.2). FluvalConnect's advantage is update cadence (monthly vs every 3 months) and iOS requirement (13.0 vs 15.6). On price, ratings volume, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
HYDROS App holds the better App Store score, 4.1 against 2.2. Both are backed by a comparable volume of ratings — 17 and 33 respectively. Written reviews point the same way: 64% of HYDROS App's written reviews are positive against 18% of FluvalConnect's.
HYDROS App ships an update every 3 months, FluvalConnect monthly. The most recent releases landed on September 16, 2026 and September 26, 2026 respectively.
| Parameter | HYDROS App | FluvalConnect |
|---|---|---|
| Price | Free | Free |
| Rating | 4.1 (17 ratings) — better | 2.2 (33 ratings) |
| Positive reviews | 63.5% of reviews — better | 17.5% of reviews |
| Number of ratings | 17 | 33 — better |
| Update frequency | Every 3 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 69 MB | 73 MB |
| Age rating | 4+ | 4+ |
| Developer | CV Industries LLC | Rolf C Hagen Inc. |
Customer experience
HYDROS App
FluvalConnect
In-app purchases
HYDROS App
No in-app purchases
FluvalConnect
No in-app purchases







