Franz Fahrenheit & Celsius

Name: Franz Fahrenheit & Celsius
Rating: 4.8 (1476 reviews)
Author: Björn Schefzyk

Celsius & Fahrenheit Weather

Free · In‑App Purchases · Designed for iPad. Not verified for macOS.

1.5K Ratings
Age Rating

4+
Years
Category

Weather
Developer

Björn Schefzyk
Language

EN
English
Size

59.3
MB

The highest rated weather app that shows Celsius and Fahrenheit at the same time. No tapping, no toggling, no mental math — both scales, one glance. Loved by 1,300+ reviewers at 4.8 stars. Built for expats, travelers, and anyone who reads weather across regions. WHY FRANZ FAHRENHEIT • Dual temperature everywhere — current conditions, hourly, and daily forecasts all show Celsius and Fahrenheit side by side • Hourly forecast with precipitation chance for the next 24 hours • Daily forecast — 7 days free, up to 15 days with Premium • Home and lock screen widgets in multiple sizes (Premium) • Dynamic backgrounds that subtly shift with conditions and time of day ACCURATE DATA Powered by Apple Weather (WeatherKit) and The Weather Company — two of the most trusted global weather providers. MADE FOR • Expats in the US and Americans abroad getting familiar with the other scale • Travelers moving between Celsius and Fahrenheit countries • International workers and remote teams coordinating across regions • Anyone curious about weather in both scales WHAT USERS SAY "The only good app that displays both C and F. Thank you from a Canadian living in the US." "Finally, someone gives us weather in both Celsius and Fahrenheit without having to switch in settings." "As an American living in the UK, I find myself struggling to discuss the most common topic of conversation here: the weather. Finding this app was a blessing." FREE & PREMIUM Franz Fahrenheit is free to download with dual temperature display, 7-day forecast, and hourly outlook. Premium unlocks home and lock screen widgets, multiple saved cities, up to 15-day forecast (with The Weather Company as data source), and your choice of weather data provider. Choose monthly, annual, or a one-time lifetime purchase. Payment is charged to your Apple ID at purchase confirmation. Subscriptions auto-renew unless cancelled at least 24 hours before the end of the current period. Manage or cancel in your App Store account settings. Privacy Policy: https://franzfahrenheit.com/privacy.html Terms of Use: https://franzfahrenheit.com/terms.html End User License Agreement: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Ratings & Reviews

4.8

out of 5

1.5K Ratings

The Most Convenient and User-Friendly Weather App
05/26/2025
Ladygoodmood
I’ve recently moved to the U.S. and am still getting used to the local weather conditions. Sometimes it’s challenging to interpret temperatures, especially due to differences in measurement scales, so I’ve been using this app for about a year. It has become an essential tool for me: everything is clear, straightforward, and without unnecessary features—just what I need.Recently, the app introduced a paid subscription, and I understand that all work deserves compensation. Given how useful this app is, I believe the subscription is worth it—especially since it’s not very expensive. Thank you so much to the developer! I’ve also taken an interest in other apps by this developer and will definitely try them out. Everything is designed simply, clearly, without excess, and is very helpful. Thanks again!

Developer Response
Thank you so much for this very nice and detailed review ❤️I especially appreciate your understanding that I had to start charging a small fee to cover my costs, unlike some other reviewers.
The Most Convenient and User-Friendly Weather App
05/26/2025
Ladygoodmood

I’ve recently moved to the U.S. and am still getting used to the local weather conditions. Sometimes it’s challenging to interpret temperatures, especially due to differences in measurement scales, so I’ve been using this app for about a year. It has become an essential tool for me: everything is clear, straightforward, and without unnecessary features—just what I need.Recently, the app introduced a paid subscription, and I understand that all work deserves compensation. Given how useful this app is, I believe the subscription is worth it—especially since it’s not very expensive. Thank you so much to the developer! I’ve also taken an interest in other apps by this developer and will definitely try them out. Everything is designed simply, clearly, without excess, and is very helpful. Thanks again!
Developer Response 05/27/2025
Thank you so much for this very nice and detailed review ❤️I especially appreciate your understanding that I had to start charging a small fee to cover my costs, unlike some other reviewers.
Exactly what I was looking for!
08/12/2024
Peanut13393
As an American living in the UK, I find myself struggling to discuss the most common topic of conversation here: the weather. Without knowledge of why on Earth the British are complaining about 30 degree weather being HOT, I have become socially inept. I’ve been trying to learn Celsius conversions from Fahrenheit but have been generally clueless. Finding this app was a blessing. It’s so nicely designed, with several different widgets so I can always see the two temperatures. The UI is beautiful, even changing with the weather like Apple’s does. This all combined with the fact that it’s free, with no subscription or anything has endeared this app to me forever. Thank you Franz! I can finally join the people of this country in complaining about the weather, regardless of what it is.

Developer Response
Thank you so much for this kind and thorough feedback!I'm trying to keep this app free and on donation basis (the Apple Weather data I'm using is not free unfortunately) but can't promise I can keep that up forever.Cheers, Björn – bjoern.schefzyk@gmail.com
Exactly what I was looking for!
08/12/2024
Peanut13393

As an American living in the UK, I find myself struggling to discuss the most common topic of conversation here: the weather. Without knowledge of why on Earth the British are complaining about 30 degree weather being HOT, I have become socially inept. I’ve been trying to learn Celsius conversions from Fahrenheit but have been generally clueless. Finding this app was a blessing. It’s so nicely designed, with several different widgets so I can always see the two temperatures. The UI is beautiful, even changing with the weather like Apple’s does. This all combined with the fact that it’s free, with no subscription or anything has endeared this app to me forever. Thank you Franz! I can finally join the people of this country in complaining about the weather, regardless of what it is.
Developer Response 08/28/2024
Thank you so much for this kind and thorough feedback!I'm trying to keep this app free and on donation basis (the Apple Weather data I'm using is not free unfortunately) but can't promise I can keep that up forever.Cheers, Björn – bjoern.schefzyk@gmail.com
My favorite weather app in iOS
04/08/2025
Lou Cyx
I used this app for a long while and it's amazing. It lets you see a "rest of the world" temperature while being able to tell the weather to your US friends. Sadly Apple charges for something they get for free: Weather API access. This means Franz has to charge for something and they chose one of the features I used most which is the widget. There's no option for lifetime, only subscription is available and I'm against subscriptions. I'll keep the 5 stars because the app is still amazing and this issue is Apple's fault, not Franz's.

Developer Response
EDIT: Just wanted to let you know I implemented lifetime purchase :) Hi! Thanks for the feedback!Apple also pays for weather data they get from all kinds of weather companies/public services, etc. But they do charge app developers a hefty premium. I might look into implementing cheaper alternatives. Widgets generate 90% or the cost because they refresh so often. I'd be open to add a lifetime subscription.Feel free to email me at bjoern.schefzyk or via "Email the maker" on the Settings screen and we can discuss more...
My favorite weather app in iOS
04/08/2025
Lou Cyx

I used this app for a long while and it's amazing. It lets you see a "rest of the world" temperature while being able to tell the weather to your US friends. Sadly Apple charges for something they get for free: Weather API access. This means Franz has to charge for something and they chose one of the features I used most which is the widget. There's no option for lifetime, only subscription is available and I'm against subscriptions. I'll keep the 5 stars because the app is still amazing and this issue is Apple's fault, not Franz's.
Developer Response 12/11/2025
EDIT: Just wanted to let you know I implemented lifetime purchase :) Hi! Thanks for the feedback!Apple also pays for weather data they get from all kinds of weather companies/public services, etc. But they do charge app developers a hefty premium. I might look into implementing cheaper alternatives. Widgets generate 90% or the cost because they refresh so often. I'd be open to add a lifetime subscription.Feel free to email me at bjoern.schefzyk or via "Email the maker" on the Settings screen and we can discuss more...
Exceptional
Sep 6
Parker RJ
I’ve been using Franz for over two years now, and I wouldn’t use another weather app if you paid me. The user interface is both instructive and intuitive—it is not easy for an app to have the amount of information available that this one does without it getting crowded, but Franz balances it perfectly. I would highly recommend it to anyone wanting to familiarize themselves with both measurement systems, indeed, I have recommended it to friends in the past. Five enthusiastic stars and many thanks!

Developer Response
Thank you so much for this amazing feedback! ❤️
Exceptional
Sep 6
Parker RJ

I’ve been using Franz for over two years now, and I wouldn’t use another weather app if you paid me. The user interface is both instructive and intuitive—it is not easy for an app to have the amount of information available that this one does without it getting crowded, but Franz balances it perfectly. I would highly recommend it to anyone wanting to familiarize themselves with both measurement systems, indeed, I have recommended it to friends in the past. Five enthusiastic stars and many thanks!
Developer Response Sep 7
Thank you so much for this amazing feedback! ❤️

The radar map now shows your current location.

Version 3.16.1 5d ago

Data Not Linked to You

The following data may be collected but it is not linked to your identity:
- Location
- Usage Data
- Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

Accessibility

Information

Seller: Bjorn Schefzyk
Size: 59.3 MB
Category: Weather
Compatibility: Requires iOS 26.0 or later.

iPhone
Requires iOS 26.0 or later.

iPad
Requires iPadOS 26.0 or later.

Mac
Requires macOS 26.0 or later and a Mac with Apple M1 chip or later.

Apple Vision
Requires visionOS 26.0 or later.

Apple Watch
Requires watchOS 26.0 or later.
Languages: English
Age Rating: 4+

4+

Learn More
In-App Purchases: Yes

Monthly $0.99

Annual $9.99

Annual $14.99

Monthly $1.99

Lifetime $39.99

Lifetime $29.99

Learn More