Heavier coat today, or lighter? End the hesitation at your front door.
iOS 15.6+ · iPhone · iPad · EN · KO · JA · ZHThe 1.7° clue
"Yesterday it was 70°F. Today, 66.9°F." A number that looks small, but decides one layer of clothing. Information other weather apps don't tell you.
Light at the closet
Umbrella, mask, heavier coat. One line tells you what to grab. 10 temperature bands × seasonal logic, no more closet hesitation.
5 seconds before the door
Morning push compares yesterday. Evening shows tomorrow. You know "today is different" without opening the app.
"When my child began daycare, I faced the same question every morning. Dress them like yesterday? Lighter? Warmer? No weather app showed yesterday's data. So I built one."
Why I built it
A weather app made by someone who checks it every morning — and dresses a kid based on the answer.
Three comparisons, one for each time of day
Other weather apps show the same forecast all day. ThanYesterday shows the comparison that actually matters right now.
Time of day | What you see |
Morning (4–11am) | "3° warmer than yesterday at this time" |
Afternoon (11am–5pm) | Today's high vs yesterday's high |
Evening (5pm–4am) | "Tomorrow morning will be 2° cooler than today" |
Small numbers, sharp on your palm.
2 home screen widgets, 3 lock screen widgets, daily morning and evening notifications. From the moment you wake your phone, on the commute, even with a glance before bed — yesterday's weather keeps following you.
What if Dieter Rams drew weather?
9 weather icons redrawn in Bauhaus geometry. The sun rotates slowly, clouds sway, rain falls. Movement that lives only in this app.
Features
WeatherShape — original geometric icons
9 weather conditions, each redrawn in Bauhaus geometry. Sun rotates slowly, clouds sway, rain falls. Movement no other weather app has.
Medium widget (Pro)
Home and daycare. Home and work. Two locations side by side on the Home Screen.
Smart notifications
Morning push compares yesterday. Evening shows tomorrow. Custom times.
Lock screen widgets
3 lock screen widgets — air quality, hourly forecast, rain chance. A glance is enough.
Real-time air quality
Korea: direct KMA and AirKorea integration. Worldwide: Open-Meteo air quality.
5 languages
English · Korean · Japanese · Chinese Simplified · Chinese Traditional. PPP pricing for Korea, Japan, Taiwan.
Who it's for
•
Tired of meaningless temperature numbers
•
Asking "what should I wear?" every single morning
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Wanting a weather app that's actually beautiful
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Tracking weather across multiple cities
•
A parent trying to dress a child each morning
What people are saying
"The first app I open every morning. Picking clothes got real easy."
— App Store review
"One widget shows yesterday and today at a glance. Can't use other weather apps anymore."
— App Store review
FAQ
Q. What iPhones are supported?
iOS 15.6 and up, iPhone and iPad. iPad uses a native universal layout.
Q. Is it free?
The core features are free. Pro unlocks the Medium widget (two locations side by side), customizable notification times, and lock screen widgets.
Q. Where does the weather data come from?
Apple WeatherKit primary, Open-Meteo automatic fallback. Korean air quality directly from KMA and AirKorea.
Q. Can I customize notification times?
Yes. Morning and evening alert times can be set to whatever works for you.
Q. How do I cancel a subscription?
iPhone Settings → Apple ID → Subscriptions, cancel anytime.
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