Painting: orange slime pours from the sky down over the city skyline beside a river and bridge, with pumpkins and autumn leaves under a golden moon. The slime slowly comes to rest and the sky keeps drifting.

Omaha, with the lights on.

WunderGoo

Slime recipes for families

Make something squishy together.

Make slime with your kid. WunderGoo tells you what to buy, what goes in when, and which steps are yours. The afternoon is yours.

Download on the App StoreGet it on Google PlayOpen the web appSee how it works ↓
Classic recipe free, no accountA grown-up does the chemistryWorks offline once loaded

How it works

Pick. Make.
Write it down.

Recipes, a pantry checklist, and a notebook for what you made and how it turned out.

Three painted recipe cards, each with a blob of green, purple or blue slime01 / PICK

Choose a recipe.

Classic, clear, butter, fluffy and more. Each card says what you need, how hard it is and how messy it gets. Seasonal slime drops appear for Halloween, the holidays and more, then go away until next year.

A glue bottle, a jar and a wooden spoon beside a dollop of green slime02 / MAKE

Follow the steps.

Cook Mode shows one step at a time, with the grown-up steps marked so you know when to take over.

An open notebook with a green slime thumbprint and a pencil03 / REMEMBER

Write down what happened.

The notebook lives on your device. The batches that worked are easy to find and make again.

For grown-ups

What WunderGoo is

WunderGoo is a recipe app. It doesn't sell ingredients and it doesn't replace you: a grown-up handles the activator and any hot water, and slime is for playing, not eating.

The free recipe needs no account. Paid access uses a parent account; the pantry and notebook stay on the device.

Batch gone sticky, stiff or runny? Fix my slime has the same fixes the app shows, free to read.

Privacy

Pricing

Classic is free.
The rest is one payment.

Web prices in US dollars.

CLASSIC

$0

Free. No account needed.

  • Classic PVA recipe
  • No account required
Available now on the App Store, Google Play and the web
FAMILY PASS · 12 MONTHS

$12 / year of access

That is about $1 a month, paid once a year. It does not renew on its own.

Every recipe, for a year.

  • All consumer recipes and features
  • Seasonal drops while your pass is active
  • No automatic renewal
  • Keep access to your saved history
Available now on the App Store, Google Play and the web
FOUNDER LIFETIME PASS · LAUNCH OFFER

$35 / once

A launch offer while it lasts. One payment.

  • All consumer recipes and features
  • Seasonal drops while your pass is active
  • Future consumer app updates included
  • No recurring payment
  • May be withdrawn at any time
Launch offer · while it lasts

Lifetime is an access license while WunderGoo operates, not ownership of the software or a promise of perpetual hosting or device compatibility. Physical kits are not included. Store prices are shown in the app.

The same river at night: the footbridge lit green, a crescent moon, the last of the slime dripping from the tallest tower

Open it on your phone.

iPhone and iPad: get it on the App Store. Android: get it on Google Play. The web app works on both.

Download on the App StoreGet it on Google PlayOpen the web app

Add it to your home screen and it opens like an app.

Show me how
  • iPhone / iPad (Safari): open app.wundergoo.com, tap the Share button , then Add to Home Screen.
  • Android (Chrome): open the app, tap the ⋮ menu, then Add to Home screen or Install app.

Your pantry and notebook stay on the device and the recipes open offline. Questions? Support ↗