dewdrop: Humidity Control
Know When to Open Windows
Expected Oct 31, 2026 · Free · In‑App Purchases
Know when opening your windows can improve your indoor humidity.
dewdrop compares your indoor conditions with your local weather to show when natural ventilation can help reach your humidity goals. See when to open your windows to remove excess moisture, when to keep them closed, and when outdoor air may help make a dry home more comfortable.
Help reduce conditions favorable to mold growth, support a healthier indoor environment, and protect your home and moisture-sensitive belongings without relying solely on central air or a dehumidifier.
Features:
- Air Exchange: Plan ahead by seeing when outdoor air will best support natural ventilation to reduce your indoor humidity.
- Lüften: Track your ventilation routine, build a streak, and use a seasonally adjusted ventilation timer that automatically logs completed sessions.
- Home Dashboard: Connect temperature and humidity sensors already in Apple Home for current readings and room-by-room guidance.
- Home Alerts: Create custom alerts for individual rooms and choose whether dewdrop responds immediately or waits for a condition to persist.
- Customize Humidity Targets: Start with a widely recommended humidity range to help create less favorable conditions for mold and dust mites and protect moisture-sensitive belongings.
- Widgets: Keep the next useful air exchange window on your Home Screen.
- Dark Mode: Automatically switches between light and dark mode based on your device settings.
- Built natively for iPhone
Learn more at https://dewlabs.io
Home Dashboard and Alerts work with compatible thermostats and temperature/humidity sensors already added to Apple Home.
Apple Home isn’t required to get window recommendations for manually entered room conditions or to use the Lüften tracker.
Weather information is provided by Apple Weather.
Terms: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
The developer, Julian Burrington, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Purchases
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Julian Burrington
- Size
- 27.4 MB
- Category
- Weather
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later. - iPad
Requires iPadOS 18.0 or later. - Mac
Requires macOS 15.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- dewdrop Pro Lifetime $199.99
- dewdrop Pro Annual $39.99
- dewdrop Pro Monthly $4.99
- Copyright
- © 2026 Julian Burrington