Best Indoor Outdoor Thermometer Apps

247+ iOS apps curated and reviewed

4.1 avg rating
20 free apps
Updated October 2026

With an average user rating of 4.1★, the indoor outdoor thermometer category is one of the App Store's strongest. Browse all 247+ apps we track, sorted so the most loved ones surface first.

Compare top Indoor Outdoor Thermometer Apps (October 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Thermometer - Outdoor & IndoorThermometer - Outdoor & IndoorFree4.0★ (18)YesYesOct 2026
2Thermometer: Digital RoomThermometer: Digital RoomFree3.8★ (79)NoYesNov 2026
3Thermometer - Indoor & OutdoorThermometer - Indoor & OutdoorFree4.2★ (3.3K)YesNoNov 2026
4Thermometer++ AppThermometer++ AppFree4.7★ (7.3K)YesYesNov 2026
5Room Temperature CheckerRoom Temperature CheckerFree4.4★ (5)NoYesOct 2026
6Thermometer-Room&Indoor TrackThermometer-Room&Indoor TrackFree4.5★ (394)YesNoOct 2026
7HD Thermometer ⊎HD Thermometer ⊎Free4.3★ (13K)YesYesNov 2026
8Thermometer: Room TemperatureThermometer: Room TemperatureFree—NoNoOct 2026

Top Picks for Indoor Outdoor Thermometer

Thermometer - Outdoor & Indoor#1

Thermometer - Outdoor & Indoor by Siddharth Kevadiya

Room Temperature, Thermometer
Editor's Choice
🔧 Utilities
4.0(18 ratings)
FreeAdsIn-App Purchases
Thermometer - Outdoor & Indoor screenshot 1
Thermometer - Outdoor & Indoor screenshot 2
Thermometer - Outdoor & Indoor screenshot 3
Thermometer - Outdoor & Indoor screenshot 4
Thermometer - Outdoor & Indoor screenshot 5
Thermometer - Outdoor & Indoor screenshot 6

This app provides real-time indoor and outdoor temperature readings with a clean, user-friendly interface. It's designed for quick and accurate temperature checks, making it ideal for daily monitoring at home, work, or while traveling.

Thermometer: Digital Room#2

Thermometer: Digital Room by Tirin

Check indoor heat & weather!
Strong Contender
☀️ Weather
3.8(79 ratings)
FreeIn-App Purchases
Thermometer: Digital Room screenshot 1
Thermometer: Digital Room screenshot 2
Thermometer: Digital Room screenshot 3
Thermometer: Digital Room screenshot 4
Thermometer: Digital Room screenshot 5
Thermometer: Digital Room screenshot 6

This app transforms your smartphone into a precise digital thermometer. It displays real-time indoor room temperature, outdoor weather, and humidity levels with a classic retro interface. Customize themes and switch between Celsius and Fahrenheit for easy climate monitoring.

Thermometer - Indoor & Outdoor#3
4.2(3.3K ratings)
FreeAds
#71in Weather
Thermometer - Indoor & Outdoor screenshot 1
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Thermometer - Indoor & Outdoor screenshot 5
Thermometer - Indoor & Outdoor screenshot 6

This app provides real-time temperature readings for both indoor room environments and outdoor locations worldwide. It offers detailed weather forecasts, including hourly and daily predictions, wind speed, humidity, and sunrise/sunset times. Easily monitor your home comfort or plan your travels with location-based weather information.

More Indoor Outdoor Thermometer apps to explore

FAQ about Indoor Outdoor Thermometer

What are the best indoor outdoor thermometer apps for iPhone?
Thermometer - Outdoor & Indoor tops our indoor outdoor thermometer apps ranking as of October 2026, with a 4.0-star average from 18 App Store ratings, and it's free to download.
Yes — 20 of the top indoor outdoor thermometer apps we rank are free to download, including Thermometer - Outdoor & Indoor and Thermometer: Digital Room.
Thermometer - Outdoor & Indoor shows ads and offers in-app purchases, according to its App Store listing as of October 2026.
We track 247+ indoor outdoor thermometer apps on the iOS App Store as of October 2026, ranked by rating, recency, and analysis of real user reviews.