Comparison

HYDROS App vs WolfSense Mobile

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

WolfSense Mobile

This application connects GrayWolf DirectSense® II probes to iOS devices, transforming them into real-time displays and data loggers. It supports up to six plug-and-play gas sensors for various indoor air quality, industrial hygiene, and HVAC applications. Users can store logs, view trend graphs, and add multimedia notes to data files.

Highlights
  • Real-time display
  • Data logging
  • Supports multiple gas sensors
  • Trend graphing
  • Multimedia note integration
  • Cloud data access
Features
Read full description

Connect your GrayWolf DirectSense® II probes to your Apple iOS devices! This app allows you to use your smartphone or tablet as a real-time display, data-logger and more. Customize your DSII probe with up to (6) plug and play gas sensors (plus %RH and ºC/ºF) for a variety of indoor air quality, green building, industrial hygiene, and HVAC applications. Choose from over 25 highly accurate, smart sensors including TVOCs (PID), Carbon Dioxide (NDIR), Formaldehyde and O3, CO, NO2, NH3, SO2, NO, Cl2, H2S, HCN, HCl, O2, H2 (electrochemical). Store “snapshot” logs during walk-throughs, or trend log over time at your specified interval. Simultaneously display multiple parameters or view trend graphs on your screen, even access GrayWolfLive data from the cloud. Take advantage of your feature-rich smartphone to add photos, videos, text and audio notes directly to data files for efficient, reliable documentation.

Screenshots

HYDROS App3 screens
WolfSense Mobile4 screens

Verdict

The call

The clearest difference is rating: WolfSense Mobile at 5.0 against HYDROS App's 3.7. WolfSense Mobile also leads on iOS requirement (11.0 vs 15.6). HYDROS App's advantage is update cadence (every 3 months vs every 7 months) and ratings volume (22 vs 3). 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.

ReceptionRating · Positive reviews · Number of ratings

WolfSense Mobile holds the better App Store score, 5.0 against 3.7. That said, the two scores are not equally well evidenced: HYDROS App has 22 ratings behind it against 3, so its average is the more settled of the two.

UpkeepUpdate frequency

HYDROS App ships an update every 3 months, WolfSense Mobile every 7 months. The most recent releases landed on September 26, 2026 and June 6, 2026 respectively.

Scorecard4 real differences · 6 level
HYDROS App versus WolfSense Mobile: the parameters behind the verdict, then further details
ParameterHYDROS AppWolfSense Mobile
PriceFreeFree
Rating3.7 (22 ratings)5.0 (3 ratings) — better
Positive reviews62.3% of reviews—
Number of ratings22 — better3
Update frequencyEvery 3 months — betterEvery 7 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.611.0 — better
Further details — not scored
Size70 MB161 MB
Age rating4+4+
DeveloperCoralvueGrayWolf Sensing Solutions, LLC

Customer experience

HYDROS App

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

WolfSense Mobile

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

HYDROS App

No in-app purchases

None

WolfSense Mobile

No in-app purchases

Questions

Is HYDROS App free?
HYDROS App is free to download, with no in-app purchases.
Is WolfSense Mobile free?
WolfSense Mobile is free to download, with no in-app purchases.
Which has better reviews, HYDROS App or WolfSense Mobile?
WolfSense Mobile is rated higher. HYDROS App averages 3.7 out of 5 from 22 ratings, while WolfSense Mobile averages 5.0 from 3 ratings.
Do HYDROS App or WolfSense Mobile have ads?
Neither HYDROS App nor WolfSense Mobile shows ads.
Which is updated more often, HYDROS App or WolfSense Mobile?
HYDROS App ships an update every 3 months, and WolfSense Mobile every 7 months. Most recently, HYDROS App was updated on September 26, 2026 and WolfSense Mobile on June 6, 2026.

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