Felsius
Never google “what’s 68°F in °C?” again
Felsius launched on February 7, 2026 with 78 votes, #493 of 16,628 launches that month and more than 95% of that year's launches.
What it does
I’m British, my wife’s American. We live in the US. For years, almost every day, we have the same dance around the weather... “Yes, but that’s in °C”... “ok, so what is that in °F?”… So I made a little weather app. That always shows °C and °F together. No switching settings. No mental maths. Clean, minimal design with no ads. Felsius gives you instant clarity at glance.
Felsius is the weather app that shows Celsius and Fahrenheit at the same time — no switching settings, no converting. Built for expats, travellers, and mixed-unit households.
Moved from the US to Canada and I have been looking for something exactly like this. Constantly switching, I deal with this 50 times a day. Thank you. European in America for a decade+ who travels a lot. For the love of god I need this. Originally created for my wife and me. Now it's for you too. If you're reading this, chances are Felsius will work for you. Felsius needs a connection to show you the latest weather. But maybe you'll get lucky. Your data is never sold to advertisers or third parties. Your location is only used to fetch the forecast. Unlike most apps, we don’t even use Google Analytics. Instead, our focus is keeping you updated on if it's going to rain continuously for the…from felsius.app
Does a similar job
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Franz Fahrenheit 2.02018 · apps.apple.com · ▲102Weather app for expats showing °C and °F side-by-side
- DWDegrees What?2023 · degreeswhat.com · ▲171
One of my pet peeves is when people specify a temperature in "degrees" when it’s not clear from the context which scale is being used. I always want to ask “degrees what?” So I made this little conversion tool that uses degrees angle to convert between degrees Fahrenheit and degrees Celsius. Tip: you can add a number in a query to link directly to a temperature. e.g. https://degreeswhat.com/?100
Franz Fahrenheit2017 · franzfahrenheit.com · ▲8Simple weather app displaying temperatures in both °C and °F
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