My Aquarium
Lulu, Sunny, jellyfish and friends swim with real depth. Feed them, clean the water, install equipment and decorate the tank. Switch the whole interface between spring, summer, autumn and winter themes anytime.
A learning ocean that grows with your child
Every lesson
Every lesson
brings the ocean to life.
Math, languages, coding, memory and focus. Earn coins and stars in short games, then grow an aquarium that feels like your own.
Available on iPhone, iPad and Mac · Best on iPad or Mac
No ads
No sign-up · Works offline
App Store 9+ · from age 5 with a grown-up
4 interface languages
4 seasonal themes
See it moving
Twenty-five seconds, and you have seen it.
Recorded on a real device — nothing staged. It reads fine without sound; the button turns it on.
A small daily loop
"I want to play more" becomes a reason to learn.
01
Play a learning game
02
Earn coins and stars
03
Care for fish and the aquarium
04
Enjoy reward games
My Ocean
Every day of play becomes part of the ocean.
This is more than a menu. Aquarium care, beach discoveries and voyage milestones all live in one connected world.
The Beach
At low tide, meet crabs, turtles and shells. Pick up what has washed ashore, and the beach slowly grows cleaner.
Voyage Map
The submarine moves one square on learning days. Take a break and it simply waits.
Tank Timer
Fill the tank with a short focus session, then celebrate with the fish.
Collection
Keep fish, beach creatures and treasures in a collection of your own.
Ocean Guardian
Every piece picked up makes the ocean cleaner.
Tap one piece of litter that washed ashore. That single tap adds a card explaining why it matters and what helps — and over time a recycling box, a bench and a lighthouse appear on the beach.
Plastic bags, bottles, straws, lost fishing nets and more. The first time a kind is picked up it becomes a new card, explaining in a few short sentences how it connects to the animals.
No photos of injured animals. A creature is never drawn worse than mildly puzzled, and when the child presses the button the same scene turns into clear water. The page always ends on the hopeful picture.
Ten pieces bring a recycling box, twenty-five a bench, a hundred and twenty a lighthouse. No coins and no stars are given — the reward is the beach itself getting better.
Sea glass, cherry blossom shells, a pearl, amber. The order they appear in is fixed: no gacha, no rare pulls, no unlucky child. Every child eventually completes the collection.
Eight marks that stay on the beach
A recycling box, a bench, a seabird nest, a cluster of hermit crabs, a lighthouse, a turtle nesting site, a tide pool, and finally the Ocean Guardian monument. Once something appears, it never goes away — not even when the season changes.
- 10Recycling box
- 25Bench
- 50Seabird nest
- 120Lighthouse
- 300Monument
Learning Games
Discover strengths and struggles, one short game at a time.
Short sessions, no point loss for mistakes. Primary-school skills, memory, attention and rhythm become ocean games.
Math Shooter
Use addition, subtraction and times tables to stop meteors from reaching the sea.
Stroop Colors
Choose the color rather than the word to practise switching attention.
Deep-Sea Number Hunt
Find numbers in order in a visual-search and working-memory challenge.
Ocean Coding
Guide a robo-crab with command blocks and learn sequences, loops, conditions and functions.
Character Craft 3 languages
Build, read and trace Japanese kanji, Simplified Chinese and Traditional Chinese characters.
English Words
Listen, spell and match pictures while learning grade-level English words.
Rhythm Shark
Copy rhythms with a shark DJ, keep the beat and explore pitch.
Memory Catch
Remember light and card sequences, then act in the right order.
Light & Shadow
Stack blocks and three lights cast three shadows—clear the stage when all three match.
Tank Timer
A quiet focus timer with fish, starting from just two minutes.
Fish Adventure Reward
Spend coins earned through learning on an 18-stage side-scrolling adventure, ending with a boss.
No-No Puffer Reward
Tap the fish, resist the puffer—a fast, cheerful switching game.
Endless Challenges
After graduating from a course, keep moving with reproducible daily challenge codes.
Today's Missions
Three activities rotate across learning games each day. Leave midway and come back to continue.
Two questions, then it's set up
Different ages see a different ocean.
The first time you open the app it asks two things — how old your child is, and whether they usually play alone or with a grown-up. Everything else is set up for you, and you can fine-tune any single game afterwards.
Rhythm, memory, number hunting and counting-based math — no reading needed. The aquarium and the beach are always open.
Addition and subtraction, colour words, first characters and English words, plus the opening chapters of ocean coding.
Multiplication and division, the Stroop challenge, spatial reasoning, longer coding chapters and the focus timer.
The full course, larger numbers, all six grades of characters, and generated challenges that keep coming once a track is finished.
Younger children are best playing alongside a grown-up who can read things out. Parents can change the age, switch any game off, or cap its difficulty at any time.
For Parents
The ocean is for kids. Controls have a place for parents.
The child's screen stays calm. Family settings and learning records live separately in the web dashboard.
No contact with strangers and no behaviour-tracking ads.
Without sign-up, data stays on the device and play works offline.
A parent account restores fish and progress after changing devices.
The app builds on what went well without blaming mistakes or breaks.
Parent dashboard
View learning records and manage games, difficulty, daily missions, screen time and rewards in one place.
Open dashboard
FAQ
Frequently asked questions
Is an account required?
No. Every game and the aquarium work offline without an account. Signing up adds cloud saves and the parent dashboard.
Are there ads or in-app purchases?
There are no ads and currently no in-app purchases. We do not plan to place behaviour-tracking ads on children's screens.
Which languages can children learn in?
The interface supports English, Japanese, Simplified Chinese and Traditional Chinese. Character learning can combine the selected language with English. The litter cards and the treasure guide are translated into all four languages too.
Will the ocean-pollution topic frighten my child?
It is built so that it does not. There is not a single photo of an injured animal or a ruined sea. Creatures are drawn no worse than mildly puzzled, and when the child presses the button the same scene turns into clean water. Closing the page always leaves the hopeful picture on screen. We also never say things like "if you do not pick it up, they will die".
See the parent dashboard — no sign-in needed.
A made-up family's data. Reports, game settings, screen time and rewards are all live to click — nothing is saved.
Founding Families
Looking for our first 20 families.
MCF is still young. Use it as you normally would for a week and answer two three-minute surveys. It is free, and there is an aquarium keepsake to say thank you.
We do not ask for reviews. We never give anything in exchange for a rating — the App Store forbids it, and we agree with the rule. The keepsake is for answering the surveys. Honest feedback is what actually helps.
The first step can be a two-minute game.
Go straight to the ocean without signing up. The fish are waiting for every bit learned.