Apex Fusion

275 reviews
Content rating
Everyone
10K+
Downloads
Content rating
Everyone
Learn more
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About this app

The Apex is the world's most popular aquarium monitoring and control system.
From anywhere in the world, with your internet-connected Apex system and this app, you can:

- Monitor the health of your aquarium by observing current and past history of your Temperature, pH, ORP, Salinity and much more (depending on how your Apex System is equipped of course)

- Control the equipment on your aquarium - lights, pumps, heater, etc. Turn them off and on, adjust the lighting spectrum, change pump modes and many other functions.

- Observe your aquarium via connected IP web cams.

- Enter key water testing parameters such as Alkalinity, Calcium, Phosphates, etc.

- Enter notes about observations of your aquarium, maintenance, fish health, etc.

- Remotely feed your fish, right from your handheld device!

- Monitor and control more than one aquarium - either yours or friends.

- Get immediate notifications when something goes wrong in your aquarium (leaks, overheating, pH out of range, water level issues, etc.)

Requires:
Any Apex System (Apex Jr., Apex Classic, Apex Gold, or the new Apex System)
The Apex must be connected to the internet
An Apex Fusion account (Apex Fusion is our free, cloud-based service)
Apex Fusion Android Client
Updated on
May 21, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • This app may share these data types with third parties
    App activity
  • This app may collect these data types
    Location and Personal info
  • Data is encrypted in transit
  • You can request that data be deleted

Ratings and reviews

255 reviews
Jared Phillips
April 25, 2026
App used to work well, now theres too many bugs in app that I can't use the mobile app any more, I am using andriod v14 os, trident hardware, if I click on a drop down like reprime, select regent A, then it exits to home screen. trident drop down menu cropped you can only see first 3 lines. home screen, shows 7 dKh but when I click on it it shows 9.7dkh. the notifications are so confusing, I just get an alert for temp,does not tell me hi or low. graphs only do week at a time not a year/month
2 people found this review helpful
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Stuart Knox
April 19, 2026
I don't know what's happened, but since a recent update it's really broken the app. It's now impossible to use the quick action buttons to capture things like NO3/PO4 readings or update a Trident setting... as the screen just opens the flash screen! Really frustrating to use now, as everything has to be done via the tasks menu
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AndrƩ
May 22, 2026
the app needs a big update. it's very generic in its current state which hasn't changed much for a while now. freshwater/saltwater profiles would be nice. The ability to add and control modules via the app like temp probe calibration, ph calibration. freshwater modules like kessil tuna sunrise/sunset & weather schedules, co2 sensor with a module to trigger cow tank solenoid. Neptune R&D must be non-existent at this time which makes me think support for these controllers might be ending soon.
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What’s new

- Fix Issues with Account Sign Up.
- New App Icon.
- Miscellaneous Improvements.