Drip, the Whether mascot: a glass raindrop in a yellow rain hat

Case study · 2026

Whether

What to wear, whatever the weather.

Get it onGoogle Play
Project
Self-initiated, real product
Role
Product designer & builder
Platform
Android
Year
2026
Disciplines
Research · UX/UI · Brand · Mascot

Weather apps tell you it’s 14°. Whether tells you to take the jacket, and when you can take it off.

It’s a phone app that turns the forecast into one clear answer for the whole day: what to wear, what to bring, and when a layer can come off. The user checks in every day to answer one question, “How did today feel?”, and Whether uses each answer to improve future recommendations.

01 · The problem

“It’s 14°. But do I need a jacket?”

14° in summer is not the same as 14° in winter. Temperature alone doesn’t tell the whole story. Wind can make it feel colder, the temperature might rise by 8° in the afternoon, and some people simply feel the cold more than others.

Wardrobe apps try to solve this, but many ask you to photograph and upload your entire closet before they can help. Getting dressed shouldn’t take that long.

02 · Research

2,787 reviews analyzed with AI to uncover what existing apps get right and wrong.

Reviews from competing apps were analyzed using Claude Opus 5.5 to identify recurring frustrations, user expectations, and opportunities for improvement.

2,787App Store reviews
10competing apps
211reviews about the weather

02 · Research · Benchmark

Fast or personal. Pick one.

First I benchmarked the apps that already answer “what should I wear today?”: closet apps, weather apps with an avatar, and a few niche ones for runners and kids. Mapped by how much setup they need and how personal the advice gets, one corner was empty.

My app

Whether

Android

Instant like a weather app, personal like a closet app, with no closet to photograph. One tap a day teaches it how you feel the weather.

Point at an app on the map to read its notes.

What each app covers

AppNo closet to set upLearns how you feelChanges through the dayOther cities & trips
PutTogetherNoNoYesNot found
CladwellPlans the week, not tripsNoNoNoPartly
AclosetNoNoNoNot found
Weather FitYesNoNot foundNot found
Daily Dress MeYesNoNot foundYes
Goldilocks Run ClubLearns, but only for runsYesPartlyNot foundNot found
WhetherYesYesYesYes

Yes Partly No Not found

The sneaky competitor is a chatbot. Plenty of people just ask AI what to wear today. So Whether has to be faster than typing the question.

Sources and caveats

Two of the comparison articles were written by competing apps, so I treated their rankings with care. Prices and ratings are from October 2026 and change often. Kids’ apps (Reima Weather, Kid Weather) were in the benchmark too, but they teach layering through dress-up games, so they aren’t on the map.

01

Weather advice should be simple.

Wardrobe apps can personalize outfits, but setting them up takes time. Weather apps give you instant recommendations, but they’re generic and don’t account for your personal preferences.

→ Useful from day one. More personal over time.

02

One bad suggestion can break trust.

35% of reviews that mention the weather rated the experience 3 stars or lower. The complaints usually say that recommendations make no sense: sandals in the snow, sweaters in a heatwave.

→ The weather logic is the main product.

03

Everyone experiences the weather differently.

The same forecast can mean a light jacket for one person and a heavy coat for another. Most weather apps treat everyone the same, leaving users to figure out what works for them.

→ Personalize gradually, learning from every bit of feedback.

04

Setup is why people quit.

“A whole day taking photos” before getting any recommendations. Users usually don’t have time before heading out.

→ No closet catalog. Two questions instead.

05

Getting dressed is a decision you make for the whole day.

Many reviews mentioned layering, highlighting a common frustration: an outfit that works in the morning might be too warm by the afternoon.

→ Help people dress for the whole day ahead.

06

People expect to plan for other places or trips.

Many reviews ask to change the city or plan a trip.

→ A city search and a packing list.

07

Getting dressed shouldn’t feel stressful.

Users appreciate quick-glance widgets and clear, simple language. When deciding what to wear already feels overwhelming, more data only adds to the noise.

→ One answer, in simple words.

Portrait of Sofía Ríos, smiling by the sea on a windy day

Meet Sofía · a proto-persona built from the reviews

31, Buenos Aires, out of the house from 8am to 7pm. Always colder than everyone else.

She wants

  • To leave home dressed for the whole day
  • To not carry things she won’t need
  • To not get caught in the rain on the way home

She’s tired of

  • Forecasts that don’t match how she feels
  • Carrying her jacket all afternoon
  • Photographing her closet for an app

03 · The idea

One answer
to get to know you.

No weather report. A sentence, an outfit and a “bring” list, for the whole time you’re out. Then one question every evening.

  1. 1Set up in 30 seconds
  2. 2Get one answer
  3. 3Check in
  4. 4It gets to know you
Today screen: 17°C sunny, 'The sun is doing the most today', the day strip and the outfit

Finding 05 · Dress for the whole day

Cold morning,
warm afternoon.

Reviewers kept saying the same thing: the advice is right at 8am and wrong by lunch. So every layer in Whether comes with a “when”. Scroll through Sofía’s day.

7°8:00am
  • Light jacketOuter layerOff by 1:00pm
  • SweaterMid layerOff by 11:00am
  • T-shirtBase layer, for the warm afternoon
  • PantsBottom

Finding 03 · Everyone experiences the weather differently

Three buttons, once a day. That’s how Whether learns.

The check-in is easy enough to do every evening. Drip, the mascot, shows each answer, and its accessory always follows the temperature: a beanie when you were cold, sunglasses when you were hot. It feels like telling a friend how your day went.

Drip, the Whether mascot, in a yellow rain hat

How did today feel?

Tap one. This is the whole check-in.

Runs coldRuns warm

04 · The app

Set up in 30 seconds. No closet photos required.

Tell Whether where you are, how sensitive you are to the cold, how you get around, and when you’re usually out. Then get straight to a personalized recommendation for the day.

Onboarding step 1
Onboarding step 2
Onboarding step 3
Onboarding step 4
Onboarding step 5
Onboarding step 6
Onboarding step 7

Today, whatever the weather.

The big number is how it feels. The headline is a sentence, not a number. Each condition has its own color, always with a word, since no brand color passes contrast with white text. So text on color is always Dark.

17°
Today screen, Sunny
Sunny
14°
Today screen, Rain later
Rain later
39°
Today screen, Very hot
Very hot
-2°
Today screen, Snow
Snow
-5°
Today screen, Night, dark mode
Night, dark mode

Not everyone has a routine.

The first idea was a button that changed based on the time of day. But some people work from home, and plenty of people don’t follow a fixed routine.

Instead of guessing what users are doing, the center button always offers the same two options: Heading out now? and Check in.

One consistent entry point. No assumptions about your day.

Heading out sheet: back in about 2–3 hours, a mini outfit answer
Today while out: 'Out until 7:00pm', sunset at 6:50, a layer for after sunset

Madrid in 23 days? Start with an estimate, not a promise.

The forecast gets more reliable as your trip approaches. Whether makes that uncertainty visible, moving from typical weather to early forecasts and finally to the actual forecast, while showing how each update changes your packing list.

Plan ahead with what’s known. Adjust as the forecast gets clearer.

  1. Trip screen, 23 days out: Typical weather, a draft list
    23 days outTypical weather, a draft list
  2. Trip screen, 7 days out: An early forecast, still firming up
    7 days outAn early forecast, still firming up
  3. Trip screen, 5 days out: The forecast is here. 2 things changed
    5 days outThe forecast is here. 2 things changed

05 · Brand

WeatherWhether

The app answers whether to wear a jacket and whether to take an umbrella. The name holds the whole idea: the decision, not the data.

Leaf Green#58CC6AActions
Sunny#FFC83DSun
Sky#4CB8F5Rain
Lavender#9B7EDEThe app’s voice
Coral#FF8066Heat
Night#B9A3F0After sunset
Dark#263238All text
Cream#FFFDF7Background

A coat hanger, a sun in a beanie… then a raindrop in a rain hat.

The first logos looked polished but didn’t feel like Whether. A mascot can literally dress for the weather, and live inside the app. We tried a cloud, a raindrop and a sun, and chose Drip: the boldest silhouette, and smiling suns are everywhere.

From four flat logo concepts, to glass tests, to three mascots, to Drip
Drip: Rain hat
Rain hatOn the logo
Drip: Sunglasses
SunglassesSunny days
Drip: Beanie and scarf
Beanie and scarfCold days
Drip: Night glass
Night glassDark mode

06 · What’s next

Now on
Android.

Whether is available on Google Play, powered by Open-Meteo’s free weather data.

The home-screen widget brings the day’s outfit recommendation at a glance, without needing to open the app.

Next, this section will include user testing results and key learnings.

Small widget: 9°, layers today, jacket off by 1:00pmMedium widget: wear layers, jacket off by lunch, with the day stripEvening widget: how did today feel? with three buttonsWhether app iconWhether app icon for dark mode
  • Activities
  • “Why this?”
  • Weather alerts
  • My clothes
  • Family profiles
  • Occasions
Research, design, brand and build
Rocío Espinosa
Weather data
Open-Meteo
Logo, mascot and icon exploration
AI-assisted, chosen and refined by me