Humidity Window vs Open Your Windows

Humidity Window is a free digital hygrometer that helps you track outdoor humidity and find the best time to ventilate your home. By lowering your indoor humidity at the right moments, you can prevent mold growth and improve your overall indoor air quality. Whether you’re concerned about dampness, stuffy air, or window condensation, this app gives you the insights you need to keep your living space comfortable and healthy. Features: - Humidity Metrics (Relative & Absolute): See the outdoor relative humidity percentage and calculate the absolute humidity for your home, so you know how much moisture is in the air. - Dew Point Comfort Bar: View the current dew point and see exactly where it falls on a visual comfort bar, from 'Pleasant/Dry' to 'Miserable.' - Ventilation Advice: Get personalized tips on when to open your windows. The app suggests optimal times for ventilation to help you reduce indoor humidity and avoid mold risk. - Detailed Weather: Track more than just moisture. See the current wind speed, wind direction, "feels like" temperature, and barometric pressure (including rising or falling trends). - Home Widget: Add the humidity widget to your Home Screen for instant updates. Monitor humidity and ventilation tips at a glance without opening the app. - Lightweight & Private: This app is under 2 MB and does not collect any personal data. It’s fast, privacy-friendly, and ad-free, so you can use it anytime and anywhere. - Air Quality Integration - HomeKit support With Humidity Window, you no longer have to guess when it’s safe to air out your rooms – you’ll know. Protect your home from mold! Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Fresh air, without the guesswork. Open Your Windows gives you one simple answer: is right now a good time to open the windows? Most days you want fresh air. But checking a weather app, an AQI app, and a pollen app to decide takes five minutes and three different recommendations. Too long if you'd like to check several times a day, and if it's important to you to get fresh air. This app looks at all of it — temperature, humidity, dewpoint, air quality, pollen, wind gusts, and rain forecasts — and gives you one clear recommendation with a plain-English reason. What you see — Open, Maybe, or Keep Closed. One answer, right now. — Plain-language reason ("It's a comfortable 72° and AQI is 42 — in the good range.") — Short-term outlook so you know how long conditions will hold. — Home screen widget in two sizes for glance-and-go checks. — Parameter detail when you want to see the why. — Pollen sensitivity toggle for allergy-prone households. How it decides It's not AI. It's a deterministic rule engine with thresholds tuned for real household comfort. Hard vetoes for unsafe air. Soft modifiers for things that affect how pleasant it'll feel. Short-term forecast awareness so you're not told to open right before a storm. Hysteresis so the answer doesn't flip every two minutes on borderline days. If conditions are genuinely borderline, it says Maybe and tells you why. If something upstream breaks or good weather data are not available, it says so instead of guessing. Trust comes from predictability. Privacy, seriously — No account. No login. No tracking. — Your location is used to fetch weather for your spot, then discarded. Never stored on our servers. — Analytics are anonymous. No device IDs. No IP addresses. No location. — API keys for weather, AQI, and pollen providers stay on our backend. Your phone never talks to them directly. Who it's for Anyone who loves fresh air and doesn't love checking three apps to decide. Parents of kids with allergies. People with asthma. Anyone who's opened the windows on a day the pollen count was secretly brutal and paid for it the next morning. Not a medical device. This is a household comfort tool, not allergy advice. If you have serious respiratory conditions, talk to your doctor — but let this app take "is today a good day?" off your list. Built in the spring in the Midwest by one person with allergies and asthma who wanted an app that just gives him the answer.