Comparison

Mobius vs HYDROS App

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Mobius

This app provides intelligent control for aquarium equipment, simplifying management of multiple tanks. Create custom scenes, schedules, and access quick status updates to maintain your aquatic environment with ease.

Highlights
  • Manage multiple tanks
  • Create custom scenes
  • Drag-and-drop scheduling
  • Lighting control with templates
  • Flow control for pumps
  • Dosing automation and tracking
Features
Read full description

Mobius® is an innovative control platform for your EcoTech Marine products. A core rethinking of how products connect and function make Mobius one of the simplest and smartest control apps you'll ever use. Manage multiple tanks and get quick status updates from dashboard widgets. Easily create Scenes that are accessible to run from the dashboard. Scenes make repetitive tasks as simple as tapping a button. Creating schedules is a snap with Mobius's drag and drop interface. DASHBOARD - Run and create custom scenes using your equipment to make repetitive tasks easy. - Configure and organize your widgets so you can stay current with what is happening in your tank. - Quick access to your devices. LIGHTING - The lighting control interface makes creating a schedule easier than ever. - Proven templates make sure your tank gets off to a great start! - Use our coral acclimation mode to welcome your new livestock. - Save & share your customized templates. FLOW - Use our easy schedule editing interface to customize your Vectra & VorTech schedule. - Utilize all of our great pump modes like ReefCrest, Lagoon and Tidal Swell. - Initiate Feed mode to reduce the aquarium flow for spot-feeding. - Easily calibrate your Vectra with our simple walkthrough. DOSING - Auto Mode: Tell us the additive you're dosing and how much, we'll take care of when based on proven best practices. - Manual Mode: You're in control. Specify dosage and duration or rate. - Continuous Mode: Set a dosing rate, and your Versa will dose as long as it has power. - Easy Calibration - Keep track of how much additive is left in the containers, so you don't run out. - Need a one-time dose? Use Instant Dose to dose your tank quickly.

About

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.

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
Read full description

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.

Screenshots

Mobius4 screens
HYDROS App1 screens

Verdict

The call

The clearest difference is rating: HYDROS App at 4.1 against Mobius's 2.0. HYDROS App also leads on review sentiment (64% vs 27%). Mobius's advantage is ratings volume (328 vs 17). On price, update cadence, 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

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

HYDROS App holds the better App Store score, 4.1 against 2.0. That said, the two scores are not equally well evidenced: Mobius has 328 ratings behind it against 17, so its average is the more settled of the two. Written reviews point the same way: 27% of Mobius's written reviews are positive against 64% of HYDROS App's.

UpkeepUpdate frequency

Mobius ships an update every 2 months, HYDROS App every 3 months. The most recent releases landed on September 21, 2026 and September 16, 2026 respectively.

Scorecard3 real differences · 7 level
Mobius versus HYDROS App: the parameters behind the verdict, then further details
ParameterMobiusHYDROS App
PriceFreeFree
Rating2.0 (328 ratings)4.1 (17 ratings) — better
Positive reviews27.5% of reviews63.5% of reviews — better
Number of ratings328 — better17
Update frequencyEvery 2 months — betterEvery 3 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.615.6
Further details — not scored
Size95 MB69 MB
Age rating4+4+
DeveloperC2 Development, LLCCV Industries LLC

Customer experience

Mobius

All ratings328 ratings
Positive22.9%
Neutral3.4%
Negative73.8%
Written reviews171 reviews
Positive27.5%
Neutral3.5%
Negative69.0%

HYDROS App

All ratings15 ratings
Positive66.7%
Neutral13.3%
Negative20.0%
Written reviews74 reviews
Positive63.5%
Neutral8.1%
Negative28.4%

Bugs and requests

Mobius

Reported bugs

5 issues
  • Constant disconnections
  • Inability to add/connect devices
  • Lighting schedule not working as expected
  • Time/date resets randomly
  • Crashes and freezes

Requested features

6 requests
  • Remote access and control
  • Improved lighting schedule customization
  • Pump/device off option
  • Sync settings across devices
  • Better documentation and tutorials
Show 1 more
  • Wi-Fi connectivity

HYDROS App

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Mobius

No in-app purchases

None

HYDROS App

No in-app purchases

Questions

Is Mobius free?
Mobius 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, Mobius or HYDROS App?
HYDROS App is rated higher. Mobius averages 2.0 out of 5 from 328 ratings, while HYDROS App averages 4.1 from 17 ratings.
Do Mobius or HYDROS App have ads?
Neither Mobius nor HYDROS App shows ads.
Which is updated more often, Mobius or HYDROS App?
Mobius ships an update every 2 months, and HYDROS App every 3 months. Most recently, Mobius was updated on September 21, 2026 and HYDROS App on September 16, 2026.

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