Best Indoor Humidity Checker Apps

250+ iOS apps curated and reviewed

4.0 avg rating
20 free apps
Updated September 2026

Finding the right indoor humidity checker apps can be overwhelming with so many options. We've analyzed 250+ apps to bring you the best choices for 2026, from free options to premium solutions with advanced features.

Compare top Indoor Humidity Checker Apps (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Humidity CheckerHumidity CheckerFree1.3★ (15)NoNoMay 2026
2Hygrometer - HumidityHygrometer - HumidityFree4.7★ (6.1K)YesYesSep 2026
3Humidity Checker °Humidity Checker °Free4.7★ (115)NoYesSep 2026
4Hygrometer: Air HumidityHygrometer: Air HumidityFree1.0★ (2)NoYesAug 2026
5AprilAire Healthy AirAprilAire Healthy AirFree4.6★ (16K)NoNoSep 2026
6Indoor ThermometerIndoor ThermometerFree4.2★ (2.1K)YesNoSep 2026
7Absolute Humidity – CalculatorAbsolute Humidity – CalculatorFreeNoYesSep 2026
8Humidity Window - StoßlüftenHumidity Window - StoßlüftenFree4.9★ (16)NoYesSep 2026

Top Picks for Indoor Humidity Checker

Humidity Checker#1

Humidity Checker by Condair A/S

Check your indoor environment.
Editor's Choice
🔧 Utilities
1.3(15 ratings)
Free
Humidity Checker screenshot 1

This app helps you monitor and maintain optimal indoor humidity levels for better health and comfort. It calculates the amount of water needed to reach the ideal 40-60% RH range, using scientific formulas and providing simple visual indicators.

Hygrometer - Humidity#2

Hygrometer - Humidity by MORETHAN APPS

Check Current Humidity
Strong Contender
☀️ Weather
4.7😞(6.1K ratings)
FreeAdsIn-App Purchases
Hygrometer - Humidity screenshot 1
Hygrometer - Humidity screenshot 2
Hygrometer - Humidity screenshot 3
Hygrometer - Humidity screenshot 4
Hygrometer - Humidity screenshot 5
Hygrometer - Humidity screenshot 6

This application provides real-time outdoor humidity readings for your current location. It features an easy-to-read analog design and is compatible with iPhone, iPad, and Apple Watch.

What We Love

  • 🚀 Accurate humidity readings
  • 👍 Simple and easy to use
  • 👍 Helpful for monitoring humidity levels
  • 👍 Useful for specific needs (e.g., guitar storage, painting)

Room to Improve

  • 🐛 Inaccurate humidity readings
  • 🐛 Inconsistent performance, app crashes
  • 🔋 Drains battery
  • 📍 Provides location-based data, not actual indoor measurements
Humidity Checker °#3

Humidity Checker ° by Adam Fahlman

Hygrometer and Temperature
Worth Considering
☀️ Weather
4.7(115 ratings)
FreeIn-App Purchases
Humidity Checker ° screenshot 1
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Humidity Checker ° screenshot 3
Humidity Checker ° screenshot 4
Humidity Checker ° screenshot 5
Humidity Checker ° screenshot 6

This app displays current humidity and temperature with analog-style dials. It offers current weather, an 8-hour look-ahead, and a 3-day forecast. Premium features include ad removal, home screen widgets, and extended forecasts.

More Indoor Humidity Checker apps to explore

FAQ about Indoor Humidity Checker

What are the best indoor humidity checker apps for iPhone?
Humidity Checker tops our indoor humidity checker apps ranking as of September 2026, with a 1.3-star average from 15 App Store ratings, and it's free to download.
Yes — 20 of the top indoor humidity checker apps we rank are free to download, including Humidity Checker and Hygrometer - Humidity.
Humidity Checker has no ads and has no in-app purchases, according to its App Store listing as of September 2026.
We track 250+ indoor humidity checker apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.
The ideal relative humidity range for indoor environments is between 40% and 60% RH. This range is considered optimal for occupants' respiratory health, reducing airborne infections, and preserving wooden items and collections.
Humidity Checker uses the latest scientific evidence and industry expert calculation formulas to determine how much water needs to be added to reach the healthy 40-60% RH range based on your current indoor temperature and relative humidity.