# Entropy FC3 — Brushless Fan Controller

> Brushless Fan Controller (iPhone/iPad app by Entropy Radiator Corporation.)

- Source: https://appshunter.io/ios/app/entropy-fc3/id6823303135 (this page in markdown: same URL + `.md`)
- Developer: [Entropy Radiator Corporation](https://appshunter.io/developer/6823303137)
- Category: Utilities
- Price: Free
- Age rating: 12+
- Requires: iOS 13.0 · 22 MB
- Languages: American English
- Released: 2026-11-04
- Data updated: 2026-11-13

## What is Entropy FC3?

The companion app for the Entropy Radiator FC3 dual radiator fan controller. Connect over Bluetooth and set up both fans from your phone.

LIVE DATA
• Watch coolant temperature update in real time.

FAN CONTROL
• Set the start and full-speed temperature for each fan with a range slider, or tap a value to type it in exactly (130–220 °F).
• Pick your fan model from presets, such as Entropy's HPX fans, to apply the right PWM frequency and polarity in one tap. The preset list updates automatically.
• Fine-tune the PWM frequency (10–1000 Hz) and invert the PWM signal for each fan.

FAN OVERRIDES
• Force either fan to full speed for testing, with a safety check to confirm the blades are clear before it starts.

SETTINGS
• Read the controller's current settings into the app, or write your changes back with one tap.

DEMO MODE
No controller yet? Explore every screen in demo mode with a simulated controller. Nothing is sent to real hardware.

Requires an Entropy Radiator FC3 fan controller for normal use.

## Is Entropy FC3 safe?

Not enough ratings yet to assess Entropy FC3.

## Is Entropy FC3 legit?

Entropy FC3 has limited verification signals. The AppsHunter Legitimacy Score for Entropy FC3 is 58 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 1 release)

### 1.0 — 2026-11-04

No release notes.

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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 2026-11-13.*