Heavier coat today, or lighter? End the hesitation at your front door.
iOS 15.6+ Β· iPhone Β· iPad Β· Free with Pro Β· EN Β· KO Β· JA Β· ZHYesterday comparison
See how today compares with yesterday at the same time. A small temperature difference becomes easier to feel.
Layered outfit tips
One-line outfit guidance with layering, umbrella, and mask cues. Built for mornings when the afternoon gets warmer.
Notifications for real departure time
Morning and evening alerts can be based on when you actually leave, with weekday controls and Pro customization.
"Yesterday was 70Β°F. Today is 66.9Β°F."
That small difference is often the thing that decides one more layer, a lighter jacket, or whether your child should leave home dressed like yesterday.
ThanYesterday turns weather into a comparison your body understands.
Built From A Morning Question
"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 β and dresses a kid based on the answer.
Three comparisons, one for each time of day
Time of day | What you see |
Morning | Today compared with yesterday at the same time |
Afternoon | Today's high compared with yesterday's high |
Evening | Tomorrow morning compared with this morning |
Outfit tips that understand the day.
The outfit screen turns weather into a small decision: lighter than yesterday, warmer than yesterday, or layered for a day that changes after noon.
Widgets and lock-screen glances.
Comparison widgets make the answer visible before you open the app: current difference, air quality, hourly temperature, and rain at a glance.
Developer note
ThanYesterday began from a parentβs morning question: should todayβs outfit be like yesterday, warmer, or lighter? The app keeps that question at the center instead of becoming a full weather dashboard.
No account required. Weather data uses Apple WeatherKit first, Open-Meteo fallback, and Korean air quality sources where needed.
Features
Yesterday comparison
Morning, afternoon, and evening comparisons change with the time of day.
Layered outfit suggestions
Temperature-band outfit tips with layering logic for warm-afternoon days.
Personalized outfit sensitivity
Choose whether you tend to feel cold, normal, or hot, and the recommendation adjusts.
Departure-time notifications
Set the time you actually leave. Morning and evening alerts can use that forecast instead of only the alert time.
Weekday notification control
Choose which days should send morning and evening alerts.
WeatherShape icons
Geometric weather icons inspired by Swiss/Bauhaus design.
Widgets
Home Screen widgets and Lock Screen widgets for comparison, air quality, hourly temperature, and rain forecast.
Weather data
Apple WeatherKit primary, Open-Meteo fallback, and Korean air quality from KMA/AirKorea.
Who it's for
β’
Anyone asking "what should I wear today?" every morning
β’
Parents dressing children before daycare or school
β’
People who feel small weather changes strongly
β’
Users who want weather in plain comparisons, not only numbers
β’
Anyone using widgets and alerts more than opening a weather app
What people are saying
"μ΄μ λ³΄λ€ μΆμ΄μ§ λμ΄μ§ μ λ§ λ± λ μ¨ μ±μμ μκ³ μΆλ κΈ°λ₯μ΄μμ!"
β Litpu, App Store review
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