The gross science app for weirdly curious kids
Scan the specimen. Survive the quiz. Master the EWW-niverse.
EWW-niverse turns real science facts into a creepy classification game — strange creatures, disgusting discoveries, quizzes, EWW scores, and Dr. Icky's lab verdicts.
Dr. IckyThe gameplay loop
What you do in the lab
Scan → classify → learn the gross fact → survive the quiz → master it → unlock more. Every loop raises your EWW score.
Scan mystery specimens
Spend a scan to crack open a sealed specimen jar and reveal what's lurking inside.
Reveal gross facts
Every classified specimen unlocks a real — and genuinely disgusting — science fact.
Answer the lab quiz
Prove you actually understand the specimen by surviving Dr. Icky's questions.
Master specimens
Ace the quiz to stamp a specimen MASTERED and earn bonus scans.
Raise your EWW score
Climb five stages — from Kinda Curious all the way to Full Dr. Icky.
Unlock 100/100 finds
Hunt the Total Barf tier: the rarest, most revolting EWW-100 discoveries.
Direct from the lab
Dr. Icky has a verdict
Professor Ignatius Icky — Chief Specimen Scientist and self-appointed keeper of gross facts. He personally inspected, sniffed, and documented every specimen in the EWW-niverse. His colleagues disagree that this is science.
A short transmission from EWW-niverse Labs.
Inside the app
The product, not a promise
Real screens from the live app — built like a lab interface, slimy enough for kids, clean enough for parents.
A fresh mystery jar every single day.
Classified. EWW-meter maxed. Fact revealed.
Collect all 234 across three field guides.
Your stage ladder, streaks and rewards.
Free to play
Free to download. No ads. Ever.
EWW-niverse is free for everyone — the full 75-specimen Creepy Creatures field guide, a new gross challenge every day, quizzes, mastery and stages, with zero ads and no sign-up. One optional unlock opens the whole lab, forever.
The app — free for everyone
Free
- ✓No ads — not a single one
- ✓No sign-up, no account, no tracking
- ✓All 75 Creepy Creatures specimens
- ✓A new Today's Gross Challenge daily
- ✓Lab quizzes, mastery and bonus scans
- ✓Stages 1–2: Kinda Curious → Properly Revolted
Optional · one-time in-app unlock
$3.99 · lifetimeFull Lab Pass — unlock the whole lab
- ✓All 234 specimens — Creatures, Dinosaurs & Earth
- ✓All 15 special Slime Surge unlocks
- ✓Stages 3–5: Super Slimy → Full Dr. Icky
- ✓One-time Full Lab Pass — $3.99 in the US, local pricing may vary. No subscription, ever.
Unlock it from inside the free app whenever you're ready — it's a single purchase that lasts forever, on every device signed in to your Apple account.
The collection
The field guides behind the lab
The EWW-niverse books are the printed field guides. The app turns the same gross-science universe into scans, quizzes, scores, and Dr. Icky's verdicts.
In the appCreepy Creatures
In the appCreepy Earth
In the appCreepy Dinosaurs
Creepy Deep Sea
Creepy Skeletons
Creepy Tiny World
Read the field guides. Then classify the specimens in the app.
A second app from Dr. Icky
Live on App StoreSlime or Bye
A Dr. Icky gross-science quiz show. Answer Dr. Icky's questions, beat the slime timer, survive the round, collect specimen cards and earn badges. Free to start, no ads, no tracking — coming soon to iPhone, iPad & Android.
For parents
Gross for kids. Clean for parents.
No ads. No tracking in the app. No social feeds. No user-generated content. Just real science facts, strange creatures, creepy discoveries, and a one-time Full Lab Pass.
No ads, ever
No banners, no pop-ups, no third-party ad networks.
No tracking in the app
The app has no analytics SDKs, no advertising IDs, and no child profiling.
No accounts
No sign-up, no email, no personal child data collected.
No social, no UGC
No feeds, no chat, no comments — nothing user-generated to moderate.
From the field
Specimen Files
The Toad That Gives Birth Through Its Own Back
The Surinam toad doesn't lay eggs in a pond. The eggs sink into the skin of the mother's back, seal over, and grow there — until dozens of fully formed toadlets erupt out of her, all at once.
The Fungus That Turns Ants Into Zombies
Ophiocordyceps unilateralis doesn't just kill ants. It hijacks their brains first, walks them to a specific leaf at a specific height, and then — and only then — detonates.
Field Report: A Creature That Replaces Your Tongue
Dr. Icky files a report from the Gulf of California. The Cymothoa exigua enters through the gills, severs the tongue, and installs itself as a replacement. The fish keeps eating. It pays rent in blood.
Why the Hagfish Is the Grossest Fish That Is Not Actually a Fish
In 0.4 seconds, one hagfish produces enough slime to fill a bucket. Scientists have measured this. Some of them regret it.
Field Report: The Vampire Catfish of the Amazon
Dr. Icky investigates the candiru — a tiny, translucent catfish that lodges itself inside the gills of other fish to drink their blood. And yes, we'll talk about the legend.
The Parasite That Turns Snails Into Pulsing Caterpillars
The Leucochloridium flatworm takes over a snail's mind, drives it into the sunlight, and turns its eyestalks into colorful, pulsating tubes that birds can't resist eating.
The Meter-Long Worm That Escapes Through Your Foot
The Guinea worm grows silently inside the body for a year, eventually causing a painful blister so it can slowly, agonizingly push its way out. It has to be wound out on a stick.
Field Report: The Bug That Drinks Other Bugs
Dr. Icky details the hunting tactics of the Assassin Bug. It doesn't chew its food. It stabs its prey, liquefies their insides, and drinks them like a smoothie.
The Shark with a Spring-Loaded Face
Hidden in the deep sea, the goblin shark has a special trick for catching fish: its entire jaw detaches from its skull and shoots forward to snatch prey.
The Tiny Octopus with a Venom Warning Light
The blue-ringed octopus is small enough to hide in a shell, but when its electric-blue rings flash, the message is simple: back away before the painless bite becomes a paralysis problem.
Want to classify specimens yourself? Get the app →
Open the lab.
Free to start. One-time Full Lab Pass to unlock everything. No ads, no subscription, no tracking.