01 / PERSONALITY
Little fish.
Own minds.
Each fish has its own temperament, needs and memory state. Their next activity is chosen by an on-device AI model, one fish at a time.
Curiosity comes in different colours.A LITTLE WORLD FOR APPLE WATCH
Small tank.
Big feelings.
It starts with two little fish.
Somehow, they become your little fish.
An aquarium with personalities of their own.
Feed them. Earn their trust. Watch a tiny world grow.
Offline by natureMade for your wristYours to care for
Your little world, on your wrist.
LESS SCROLLING. MORE SWIMMING.SCROLL TO GET ATTACHED
01 Personalities of their own02 A connection you grow03 A little daily joy
MORE THAN SOMETHING TO LOOK AT
You came for a fish tank.
You stayed for the fish.
The bold one. The shy one. The one who never misses a meal.
Your tiny tank starts to feel a little less like an app, and a little more like home.
Little fish.
02 / CONNECTION
A little patience.
A little trust.
Hold a finger gently on the glass. As trust grows, your fish can come closer. Those tiny moments of recognition are the whole point.
Care feels different from a tap.03 / NEW BEGINNINGS
Two little lives.
Room to grow.
Care for your founding pair as they grow. When the tank is ready, new fry can arrive, inheriting colours and traits from their parents.
A small world, up to six fish.YOUR LITTLE WINDOW INTO THEIR WORLDAPP PREVIEW
Actual app screenshot · Apple Watch device mock-up.
A MOMENT THAT'S JUST YOURS
A tiny ritual.
A lovely reason
to pause.
A few simple gestures. A reassuring little pulse. No complicated controls between you and your fish.
Dinner is a tap away.
Tap the top of the tank to drop food. A little click lets you know it's feeding time.
Double-tap the glass and you might give them a fright. Gentle hands make better friends.
MAKE IT YOURS
Care earns it.
You choose where it goes.
Feeding a hungry fish, wiping the glass and trimming the grass all earn Coral Coins. Spend them in the shop on pieces drawn for the tank, then slide each one into place, in front of the grass or behind it.
Pirate Ship
Lighthouse
Giant Clam
Coral Arch
Diver Helmet
Ship Wheel
Shop art drawn by the app itself.
Fourteen things to collect
From a little barrel to a sunken pirate ship, plus a snail who keeps the glass clean and new leaf colours for your sword plant.
Put away, swap around
Change your mind whenever you like. Move a piece, or put it away and bring it back later, free.
A name for every fish
Name each new fry as it hatches and meet its personality. Rename anyone later, and see the day each one hatched.
SMALL ON YOUR WRIST. BIG ON CHARACTER.
A little world.
Wherever yours takes you.
Offline, always close
Your fish make their decisions on your Watch. No internet needed to spend time together.
Come back when you can
Life gets busy. Your fish never die from being left alone. Come back, feed them and settle in.
A world worth returning to
Fish grow. Plants grow. A little algae appears. There's always a small act of care waiting.
A FEW LITTLE QUESTIONS
Before you
dive in.
Made for curious people
and their future favourite fish.
Can I download My Tiny Tank yet?
Not just yet. My Tiny Tank is preparing for release. We'll add the official App Store link here when it's ready. A launch date and price haven't been announced.
Does it work on Apple Watch SE?
Yes. The current build supports Apple Watch SE with watchOS 10 or later, including the original SE. Final compatibility details will be listed on the App Store.
Does each fish really have a personality?
Each fish has separate traits, needs and memories. A shared offline AI model chooses activities using each fish's individual state. Movement and animation are handled by the game engine. They are virtual pets, not conscious creatures.
Do I need my iPhone or an internet connection?
The aquarium runs on your Apple Watch. Its model is included in the app, so caring for your fish doesn't need the phone to do the thinking or a connection to a cloud AI service.
What happens if I forget to visit?
Your fish won't die. Time away affects hunger, growth and the tank's condition, so they may need a meal and a clean when you return. You can pick up where you left off.
Will there be more to collect?
Yes. New pieces and features are on the way in future updates.
Does My Tiny Tank collect my data?
No. There are no accounts, no analytics and no ads, and the app doesn't connect to the internet. Your tank, including the names you give your fish, stays on your Apple Watch. The privacy policy has the details.
What happens if I delete the app?
Your tank is stored only on your Apple Watch, so deleting the app deletes your tank too. There's no online backup.
Are these the actual in-app graphics?
Yes. The aquarium shown on this page is a real screenshot from the Apple Watch Ultra 3 simulator, displayed in an Apple Watch Series 11 device template. The shop pieces are drawn by the app itself. The final app may change before release.
COMING SOON TO APPLE WATCH
They don't know you yet.
Give it a little time.
Two little fish. A world that becomes yours.
Your next little attachment is on its way.