# Apex Fusion

> Remote aquarium monitoring and control system for Apex users. (iPhone/iPad app by Neptune Systems, LLC.)

- Source: https://appshunter.io/ios/app/apex-fusion/id1114191823 (this page in markdown: same URL + `.md`)
- Developer: [Neptune Systems, LLC](https://appshunter.io/developer/470430227)
- Category: Productivity, Utilities
- Price: Free
- Rating: 3.40/5 from 124 App Store ratings · 79 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.0 · 53 MB
- Languages: American English
- Released: 2016-07-04
- Data updated: 2026-07-31
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/apex-fusion/id1114191823/reviews.md

## What is Apex Fusion?

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

Requires:
Any Apex System (Apex, ApexEL, Apex Classic, Apex Gold, Apex Lite, or Apex Jr.)
The Apex, and your iOS device, must both be connected to the internet
An Apex Fusion account (Apex Fusion is our free, cloud-based service)

## Key features

- Remote aquarium monitoring
- Equipment control (lights, pumps, heaters)
- IP webcam observation
- Water parameter logging
- Maintenance notes
- Remote fish feeding
- Multi-aquarium management
- Real-time iOS notifications

## What do users think of Apex Fusion?

Overall sentiment: negative

**Pros**

- 👍 Works as designed
- 👍 Reliable system operation
- 👍 Great for remote monitoring
- 👍 Good control of parameters
- 👍 Useful for alerts
- 👍 Daily use functionality
- 👍 Great product ecosystem
- 👍 Functionality of seeing plugged-in devices
- 👍 Smooth and reliable operation
- 👍 Great app for monitoring fish
- 👍 Excellent customer support
- 👍 Works well for daily use
- 👍 Native app experience
- 👍 Faster than web interface

**Cons**

- 🐛 Terrible half-finished products
- 🐛 Not working on iPhone devices
- 🐛 Below average effort
- 🐛 Very hard to use
- 🐛 Needs 21st century update
- 🐛 No support for older iPads
- 🐛 Terrible app
- 🐛 Nightmare setup
- 🐛 Not user friendly
- 🐛 Regrets about the system
- 🐛 Trash app
- 🐛 Major flop
- 🐛 Doesn't work
- 🐛 Useless app
- 🐛 Doesn't work proper
- 🐛 Buggy app
- 🐛 Stunning UI
- 🐛 Poor password recovery
- 🐛 Awful application
- 🐛 Frozen on startup screen
- 🐛 Mediocre app
- 🐛 Difficult to slide manually
- 🐛 Crap product and app
- 🐛 Typical apex quality
- 🐛 Whole system is a let down
- 🐛 Notifications don't work
- 🐛 Won't save login

**Commonly reported bugs**

- Long periods between updates
- UI not modern
- Little problems in AFS and MXM
- Took time to figure out
- Months of troubleshooting
- Algae outbreak due to UI
- Firmware update process unclear
- Home screen no intuitive flow
- App needs redesign
- Annoying bugs
- Repeated disconnections
- Wasting calibration solution
- Changing checkboxes to toggles
- Automatic water change task broken
- UX only supports mL
- Nightmare setup process
- No videos for setup
- Nothing is labeled
- Low water level never worked
- PH checker quit working
- Doesn't work on 5g network
- Complicated to adjust things
- iPad mini 2 crash
- App crashes
- Connection issues
- Equipment disconnected many times
- No equipment connected after restart
- App crashes repeatedly
- DOS unit crashes power bank
- Heater output failed
- App stops working
- Salinity probe useless
- App doesn't respond properly
- Turned on/off incorrectly
- App crashes on iPad
- Bluetooth app does not load
- Setup doesn't save in account
- Keeps logging out
- Constantly prompts to login
- Unauthorized screen
- UI buttons too small and close
- Sliders for enable/disable are problematic
- Scheduled tasks forced on/off
- Buttons bounce around screen
- Swipe up gesture for dashboard
- Abysmal rate of errors
- TOUCH errors
- Lost password issues
- App frozen on startup
- App stalls at launch
- App renders wrong
- Confusing workflow
- Doesn't feel like an iOS app
- Swipe gestures don't go back
- Doesn't utilize tab bar
- BETA UI is buggy and slow
- BETA UI doesn't render consistently
- Clunky and jumbled mess
- App crashes 15 times in 5 minutes
- App crashes on login
- Login error on app
- Webview wrapped app
- Logs out every 5 seconds
- Camera not loading in app
- Outlet problems since iOS 11
- Device name length limitations
- Excess chrome in UI
- Overly complicated
- No way to reset password
- Support lacking in app
- Contact support link broken
- Open manual link broken
- Forum login difficult
- Pointless app
- Junk app
- System not working for months
- Apex support non-existent
- Cannot use iPad to run Apex
- No zero-star option
- Kein Deutsch
- Cannot get access to technology
- Difficult to make components on/off manually
- UI looks like old Nokia phone

**Most requested features**

- Add widget for iOS
- Add widget support
- Add widget for iOS Home Screen
- Add widget dashboard
- Add live activities for parameters
- Add Apple Watch notifications
- Add Apple Watch parameter display
- Add ability to customize start page
- Add Siri Shortcuts for feed modes
- Add Siri support
- Add HomePod support
- Add HomeKit compatibility
- Add Siri and UI updates
- Add camera compatibility
- Add custom widgets
- Improve graphing interface
- Improve notification badges
- Improve Siri Shortcut functionality

## Recent user reviews (10 of 79)

All indexed reviews: https://appshunter.io/ios/app/apex-fusion/id1114191823/reviews.md

### 5/5 — Set up a new apex after years

*2026-07-22, version 2.16*

Was pleasantly surprised at all the improvements since the last head unit I programmed.

### 1/5 — Terrible

*2026-04-04, version 2.16*

Terrible company with terrible half finished products. Don’t waste your time or money.

### 1/5 — Not working in iPhone devices

*2026-03-26, version 2.16*

For some reason when i try to connect my classic apex isn’t doesn’t show i try with multiple devices but when i try with a android device immediately appear my apex so i don’t understand why don’t apper i have all the required from the app on

### 3/5 — Below Average Effort

*2026-03-18, version 2.16*

Very little effort has been put into developing this app.  Long periods of time between updates or improvements.  By now, this app should have had a widget to at least show Water Quality and to launch the app.   The user interface has no appearance of having arrived in the 2020s. Having said that, what has been designed and developed does work as designed.   Little problems in AFS and in MXM software maturity, but it works and it makes working with my Apex system smooth and reliable.

### 4/5 — Not super intuitive

*2025-12-29, version 2.16*

Took me a bit to figure out the app. After that I have had no issues

### 2/5 — Very hard to use

*2024-12-15, version 2.15*

It works … when configured properly. It took about 3 days to learn how to use it even looking it up on YouTube, Reddit etc. And months of troubleshooting. I got an algae outbreak in the process due to an unintuitive UI leading to poor configuration.

### 4/5 — Needs 21st century update

*2024-11-14, version 2.15*

Needs a better UI and widget support.

### 5/5 — Great app

*2024-10-10, version 2.15*

Does what it needs to do and it works

### 5/5 — Jim

*2024-09-17, version 2.15*

Had fior over 12 Mts with apex and apex sky and accessories never hag an issue great product

### 1/5 — No support for slightly older devices

*2024-06-21, version 2.15*

Should be able to use older iPads as monitors and you can’t.

## Frequently asked questions about Apex Fusion

### What does the Apex Fusion app do?

The Apex Fusion app allows you to remotely monitor and control your aquarium's equipment, such as lights, pumps, and heaters, from anywhere in the world. You can also observe your aquarium via connected webcams, log water testing parameters, and receive immediate notifications for critical issues.

### What are the key features of Apex Fusion?

Key features include remote monitoring of temperature, pH, ORP, and salinity; control over aquarium equipment; live webcam observation; logging of water test results and notes; remote fish feeding; management of multiple aquariums; and instant iOS alerts for system malfunctions.

### Is Apex Fusion free to use?

Yes, Apex Fusion is a free, cloud-based service. The app itself is free to download and use, provided you have a compatible Apex System and an Apex Fusion account.

### What do I need to use Apex Fusion?

To use Apex Fusion, you need any compatible Apex System (Apex, ApexEL, Apex Classic, Apex Gold, Apex Lite, or Apex Jr.). Both your Apex system and your iOS device must be connected to the internet, and you will need to create a free Apex Fusion account.

### What are common use cases for Apex Fusion?

Common use cases include ensuring your aquarium's environment remains stable while you are away, adjusting equipment settings remotely, checking on your fish via webcam, and being alerted immediately if there's a problem like overheating or a leak, allowing for prompt intervention.

## Version history (last 5 releases)

### 2.16 — 2025-05-27

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

### 2.15 — 2024-05-30

This version adds support for the Trident NP and includes some bug fixes and efficiency improvements.

### 2.14 — 2024-02-21

Bug fixes and other minor improvements.

### 2.13 — 2024-01-31

This version adds some warning messages for older, unsupported versions of iOS and includes some smaller bug fixes and improvements for accounts with a large number of aquariums.

### 2.12 — 2023-11-15

Miscellaneous bug fixes and improvements

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-31.*