My Tiny Tank
A tiny aquarium on your wrist
Only for Watch
$1.99
Apple Watch
Feed your fish, earn their trust and keep the glass clean, and a new fry hatches into your growing family. Every fish has its own personality.
My Tiny Tank is a little aquarium that lives on your Apple Watch. Feed your fish, keep the glass clean and earn their trust, and your tank grows into a family.
EVERY FISH HAS A PERSONALITY
A tiny AI brain, running right on your Watch, decides what each fish does: explore, follow a friend, visit the bubbles, play or rest. Some are bold, some are shy, and the way you care for them can change who they become.
LOOK AFTER THEM
• Tap the top of the tank to drop food
• Hold a finger still on the glass to build trust
• Swipe down to wipe the glass, and sideways to trim the grass
• Turn the Digital Crown to switch the light on or off
• Double-tap the glass and they'll get a fright
WATCH THEM GROW
Fry grow into juveniles, adults and then elders, and their markings come in as they grow. Care for the tank well and a new fry hatches, with its body colour from one parent and its markings from the other. You give every one its name.
MAKE IT YOURS
Earn Coral Coins by caring for your fish and spend them in the shop: a barrel, an anchor, a giant clam, a lighthouse, a coral arch, a pirate ship and more. Slide each piece into place with the Digital Crown, give your plant new leaf colours, or bring in a snail to graze the glass.
GENTLE BY DESIGN
• Your fish never die. The tank keeps living while you're away
• At most one gentle reminder when they're likely to be hungry, and never at night
• Badges to collect as your tank grows
PRIVATE AND OFFLINE
No account, no ads, no tracking and no internet connection. Everything, including the fish brain, runs on your Apple Watch, and nothing about your tank ever leaves it.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, David Capp, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- David Capp
- Size
- 9.6 MB
- Category
- Simulation
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later. - Apple Watch
Requires watchOS 10.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 David Capp
