HYDROS App vs MOAI®
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.
MOAI®
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MOAI® is a robotic aquarium video monitoring and glass cleaning system. MOAI is designed to help aquarists spend more time enjoying aquarium and spend less time maintaining aquarium. MOAI mobile app allows you to control your robot remotely using a smartphone – at home, or on the move. YOUR PARTNER FOR A CLEANER AQUARIUM · Control MOAI and set a buffer above sand bed to avoid scratches. · Start, stop and schedule cleaning sessions when convenient for you. · Your robot will stay up to date with firmware updates. YOUR AQUARIUM ON YOUR PHONE · Explore your underwater world with 24/7 live streaming, from anywhere on the planet. · Unlock unique video monitoring experience designed just around aquarium. Save favorite location, switch between Spot and Cruise modes, turn on fill light, adjust exposure compensation, choose a blue light filter, and share with friends. · With camera control in the palm of your hand, peace of mind is yours. REQUIREMENTS: MOAI only support Wi-Fi® networks with 2.4GHz band
Screenshots
Verdict
The clearest difference is update cadence: HYDROS App at every 3 months against MOAI®'s every 10 months. MOAI®'s advantage is iOS requirement (9.0 vs 15.6). On price, ads, in-app purchases and device support 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 ships an update every 3 months, MOAI® every 10 months. The most recent releases landed on October 18, 2026 and October 1, 2026 respectively.
| Parameter | HYDROS App | MOAI® |
|---|---|---|
| Price | Free | Free |
| Rating | 3.7 (22 ratings) — better | — |
| Positive reviews | 62.3% of reviews | — |
| Number of ratings | 22 — better | — |
| Update frequency | Every 3 months — better | Every 10 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.6 | 9.0 — better |
| Further details — not scored | ||
| Size | 70 MB | 51 MB |
| Age rating | 4+ | 4+ |
| Developer | Coralvue | SZ MOAI TECHNOLOGY CO., LTD |
In-app purchases
HYDROS App
No in-app purchases
MOAI®
No in-app purchases
