Comparison

imOS STYLE 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

imOS STYLE

Features
Read full description

Illumagic imOS STYLE is a light controlling interface which allows you to program and control the LEDs within the STYLE series through WiFi via your mobile devices. You can define the intensities of LEDs within three channels at various time points that you can also define by yourself. You can let the light settings of two adjacent time points to change continuously or discretely according to your need. There are also various lighting modes to be programmed and selected so you can change the light settings according to your favors.

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

imOS STYLE4 screens
HYDROS App3 screens

Verdict

The call

The clearest difference is update cadence: HYDROS App at every 3 months against imOS STYLE's every 20 months. imOS STYLE's advantage is iOS requirement (8.0 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

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

imOS STYLE ships an update every 20 months, HYDROS App every 3 months. The most recent releases landed on October 7, 2026 and October 22, 2026 respectively.

Scorecard2 real differences · 8 level
imOS STYLE versus HYDROS App: the parameters behind the verdict, then further details
ParameterimOS STYLEHYDROS App
PriceFreeFree
Rating—3.6 (23 ratings) — better
Positive reviews—62.3% of reviews
Number of ratings—23 — better
Update frequencyEvery 20 monthsEvery 3 months — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS8.0 — better15.6
Further details — not scored
Size11 MB70 MB
Age rating4+4+
DeveloperillumagicCoralvue

In-app purchases

None

imOS STYLE

No in-app purchases

None

HYDROS App

No in-app purchases

Questions

Is imOS STYLE free?
imOS STYLE is free to download, with no in-app purchases.
Is HYDROS App free?
HYDROS App is free to download, with no in-app purchases.
Do imOS STYLE or HYDROS App have ads?
Neither imOS STYLE nor HYDROS App shows ads.
Which is updated more often, imOS STYLE or HYDROS App?
imOS STYLE ships an update every 20 months, and HYDROS App every 3 months. Most recently, imOS STYLE was updated on October 7, 2026 and HYDROS App on October 22, 2026.

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