Nightdraft: Whole House Fan
Local Control & Sleep Timer
About
Control your whole-house ventilation fan directly from your phone. Monitor speed, airflow, temperature, and run time. Get smart recommendations on when to run the fan based on indoor and outdoor conditions.
What's New in Nightdraft
1.2.4
September 17, 2026
The app icon now has a distinct dark appearance, so the home screen's light/dark switch is visible on it. Nothing about the panel has changed.
Developer apps
FAQ
What is Nightdraft?
Nightdraft is a mobile application designed to provide direct control and monitoring for compatible whole-house fan controllers. It offers a user-friendly interface to manage fan speed, timer, and view real-time temperature data.
Does Nightdraft have ads?
No, Nightdraft is completely ad-free. The app is developed with no advertising, tracking, or third-party code, ensuring a clean and uninterrupted user experience.
How does Nightdraft determine if it's worth running the fan?
Nightdraft analyzes indoor, outdoor, and attic temperatures to provide smart recommendations. It calculates the temperature difference to advise if running the fan will effectively cool the house or attic.
What devices does Nightdraft support?
Nightdraft is currently supported on iPhones. It requires a whole-house fan controller with an AirScape-style local HTTP interface that is reachable on your home network.
How often does Nightdraft update its data?
The app refreshes its data automatically every thirty seconds, ensuring that the displayed information regarding fan status and temperatures is current.
Can I use Nightdraft without an internet connection?
Nightdraft talks directly to your controller over your home Wi-Fi network. It does not require an account, cloud service, or an internet connection to function, as long as your device and controller are on the same local network.
What is the rating for Nightdraft?
Nightdraft has a perfect rating of 5.0 stars from 1 rating, indicating high user satisfaction among its current users.
Is Nightdraft affiliated with fan manufacturers?
No, Nightdraft is an independent application and is not affiliated with or endorsed by any fan manufacturer. It is designed to work with specific types of whole-house fan controllers.