Pick an island
Every session starts on the map: Bubble Bay, Candy Canyon, Jungle Jam and more. Each level is a short mission with its own germs to chase.
10 levels and a boss on every island

Coming soon
The brushing game that makes brushing fun. Works with any toothbrush, manual or electric.
Every session starts on the map: Bubble Bay, Candy Canyon, Jungle Jam and more. Each level is a short mission with its own germs to chase.
10 levels and a boss on every island

Your child puts on their favorite hat and glasses, then chases germs from one part of the mouth to the next, by following the on-screen directions.
2 full minutes, every part of the mouth

Every brush earns stars, coins and a prize from the Prize Park, and every day they brush grows their streak.
2 brushes a day, morning and evening

No nagging, no timers to argue with. The brushing itself is the game, and finally it’s one that kids and parents both love.
The germs sit on a cartoon mouth on screen and only pop while your child is brushing. On boss levels, a big germ guards one spot and won’t leave until it’s brushed.

Sixteen clay characters, outfits, hats and glasses. Kids design who brushes with them.
The streak shows how many days in a row your child has brushed, with a tick for morning and one for night. Every 7 days of brushing earns a shield that saves it on a missed day.
Every brush earns coins for hats, glasses and extra islands, plus a free game in the Prize Park.
Each island hides a treasure, like a golden duck or a pink pearl. Brush the right spot long enough and it appears.
After a brush, your child can snap a photo in costume, framed with that day’s stars.

Brush your way from a bubble bath and a candy canyon to a moon base and a dragon’s keep. Every island has ten levels, a treasure to find and a boss to beat.
Each level is one two-minute brush, so the game only moves forward when your child brushes.
The front camera follows your child’s face and brushing hand while they brush. The video isn’t recorded or sent anywhere, and there’s no account to make.
No advertising and no third-party analytics. Purchases go through Apple and ask for your Face ID or password, and adding or changing a child sits behind a grown-ups' question.
See each child's week, morning and evening, and which parts of the mouth get missed most, so you know where to help.
If a trial or subscription ends, your child still finishes the island they're on. Stars, treasures and costumes are theirs to keep.
Add every child, each with their own hero and progress. With Germ Chase Plus, progress syncs between parents' iPhones through your own iCloud, and one plan covers the whole family with Family Sharing.
Germ Chase is free to download and start playing. With Germ Chase Plus, your child keeps going: the next islands open as they finish each one.


Any iPhone that runs iOS 18 or later. Germ Chase uses the front camera to follow your child's face and toothbrush while they brush.
No. The camera picture is processed live on the iPhone to find the face, mouth and toothbrush, and is never uploaded or stored. Photo booth pictures are only taken when your child presses the button, and stay in the app unless you save them.
Kids who are learning to brush on their own, roughly from preschool to early primary school. Younger children enjoy it with a grown-up brushing alongside.
Yes. Choose manual or electric for each child, and Germ Chase adjusts what it looks for.
Yes. Each child gets their own hero, island and progress, and you switch between them with a swipe on the home screen.
Germ Chase is free to download and start playing, and some islands open with coins kids earn by brushing. Germ Chase Plus is optional, as a subscription or a one-time purchase: the next islands keep opening as your child finishes each one, progress syncs between parents’ iPhones, and one purchase covers the whole family with Family Sharing.
Subscriptions are handled by Apple: open Settings, tap your name, then Subscriptions. To restore a purchase on a new iPhone, open Settings (the gear on the home screen), tap Germ Chase Plus, then Restore purchases.
Germ Chase is almost ready for iPhone, and it will be free to download and start playing.
Coming soon to theApp StoreFree to start · For iPhone · No ads