Bubble Reef — offline learning game for kids 4-8

Dive into a bright, friendly reef where learning is just popping the right bubble.

Bubble Reef is a gentle first learning game for children aged about 4 to 8. Twelve rounds across four underwater worlds cover the things little ones are working on at home and in their first years of school - and every question is read aloud, so a child who cannot read yet can play on their own.

PLAY RIGHT HERE - no download needed. Tap Launch above and it opens fullscreen on your phone, tablet or laptop.

FOUR WORLDS, TWELVE LEVELS

Number Reef - counting, numbers to ten, adding and taking away

Letter Lagoon - finding letters, matching capitals to small letters, first sounds

Shape Cove - shapes, colours, and spotting what comes next in a pattern

Word Wave - rhyming words, reading simple words, finishing a missing letter

TWELVE SEA FRIENDS TO FIND

Finish a level and a new sea creature joins My Reef - a crab, a turtle, a jellyfish, a whale and eight more. Kids come back to complete the collection.

KIND BY DESIGN

No timer. No lives. Nothing is ever lost for a wrong answer. Tap the wrong bubble and it wobbles and steps aside - try again as many times as you like, and after two tries the right bubble glows.

MADE FOR GROWN-UPS TOO

Behind a press-and-hold gate that little fingers won't stumble into: turn the read-aloud voice on or off, switch sounds off, choose 5, 8 or 12 questions per round, and turn on Calm mode to stop all bobbing, confetti and movement.

COMPLETELY OFFLINE, COMPLETELY PRIVATE

No adverts. No in-app purchases. No accounts, no sign-in, no names. Stars and stickers are saved on your own device and stay there.