Comparison

HYDROS App vs AQN Link

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

Head to head
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.

About

AQN Link

This platform offers a streamlined and intelligent way to connect and manage your products. It redefines product interaction, providing a user-friendly experience for controlling various devices.

Highlights
  • Innovative control platform
  • Streamlined product connection
  • Intelligent device functioning
  • Simple user interface
  • Smart control application
Features
Read full description

AQN Link, Is an innovative control platform for your products. a core rethinking of how products connect and function makes AQN Link one of the simplest and smarter control applications you've ever use.

Screenshots

HYDROS App3 screens
AQN Link4 screens

Verdict

The call

The clearest difference is update cadence: AQN Link at every 9 days against HYDROS App's every 3 months. HYDROS App's advantage is review sentiment (62% vs 33%). On price, ads, in-app purchases and monetization model 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

HYDROS App ships an update every 3 months, AQN Link every 9 days. The most recent releases landed on November 2, 2026 and October 24, 2026 respectively.

Scorecard2 real differences · 8 level
HYDROS App versus AQN Link: the parameters behind the verdict, then further details
ParameterHYDROS AppAQN Link
PriceFreeFree
Rating3.5 (24 ratings) — better—
Positive reviews62.3% of reviews — better33.3% of reviews
Number of ratings24 — better—
Update frequencyEvery 3 monthsEvery 9 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.614.0 — better
Further details — not scored
Size70 MB43 MB
Age rating4+4+
DeveloperCoralvue烽城 熊

Customer experience

HYDROS App

All ratings22 ratings
Positive63.6%
Neutral9.1%
Negative27.3%
Written reviews77 reviews
Positive62.3%
Neutral7.8%
Negative29.9%

AQN Link

Written reviews3 reviews
Positive33.3%
Neutral0.0%
Negative66.7%

In-app purchases

None

HYDROS App

No in-app purchases

None

AQN Link

No in-app purchases

Questions

Is HYDROS App free?
HYDROS App is free to download, with no in-app purchases.
Is AQN Link free?
AQN Link is free to download, with no in-app purchases.
Do HYDROS App or AQN Link have ads?
Neither HYDROS App nor AQN Link shows ads.
Which is updated more often, HYDROS App or AQN Link?
HYDROS App ships an update every 3 months, and AQN Link every 9 days. Most recently, HYDROS App was updated on November 2, 2026 and AQN Link on October 24, 2026.

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