# dewdrop: Humidity Control — Know When to Open Windows

> Know When to Open Windows (iPhone/iPad app by Julian Burrington.)

- Source: https://appshunter.io/ios/app/dewdrop-humidity-control/id6751702584 (this page in markdown: same URL + `.md`)
- Developer: [Julian Burrington](https://appshunter.io/developer/1836332190)
- Category: Weather, Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 18.0 · 26 MB
- Languages: American English
- Released: 2026-10-31
- Data updated: 2026-10-07
- User reviews in markdown: https://appshunter.io/ios/app/dewdrop-humidity-control/id6751702584/reviews.md

## What is dewdrop?

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/

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| dewdrop Pro Monthly | $4.99 | per month |
| dewdrop Pro Annual | $39.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| dewdrop Pro Lifetime | $199.99 | one-time |



## Version history (last 2 releases)

### 1.0 — 2026-10-31

No release notes.

### 1.0.1 — 2026-10-31

• Added a new onboarding experience to help you get started.
• Added contextual tips throughout the app.
• Refined the interface and in-app guidance.
• Improved performance and reliability.

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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 2026-10-07.*