Is there a virtual pet for Mac? Yes. Pebble Reef is a free fish desktop pet for macOS 14 or later. The fish live in an aquarium behind your windows, swim independently, and can be fed when you open the app.

Pebble Reef fish desktop pet video poster Actual Mac footage Watch the 29-second desktop aquarium demo See the virtual fish pet swimming quietly behind Mac windows.

What is a desktop pet?

A desktop pet is a small animated companion that shares your computer screen during ordinary use. Some desktop pets walk over windows or sit near the Dock. Pebble Reef takes a quieter approach: the pet is a community of fish contained in a living desktop aquarium.

That changes the feel of the experience. The fish remain visible around your windows without covering the document, browser, or code editor in front of you.

Why use fish as virtual pets?

Fish are naturally suited to an ambient desktop companion. They can keep moving without needing constant commands, and their tank creates a sense of place rather than a single character floating over the screen.

  • Autonomous: the fish continue swimming while you do something else.
  • Interactive: you can feed them and observe their routines.
  • Contained: the aquarium stays behind other Mac windows.
  • Customizable: optional fish and theme packs change the look of the reef.
Goldfish profile showing bond, mood, food, and swimming routine in Pebble Reef
Get to know an individual fish’s bond, mood, food, and current routine.
Pebble Reef fish shop with goldfish, guppy, molly, and neon tetra choices
Choose from different fish species for your desktop aquarium.

A desktop pet that stays out of the way

Pebble Reef is intended for working, studying, writing, or relaxing with a little movement in the background. It does not claim to improve productivity, and it does not require a streak or a constant stream of notifications.

Open it when you want to interact. Leave it behind your windows when you want quiet company. If you want a character that walks over every app and reacts continuously, a conventional desktop pet may be a better fit.

Pebble Reef quick facts

Pet
Virtual fish in a living aquarium
Platform
macOS 14 Sonoma or later
Hardware
Apple silicon and Intel Macs
Cost
Free base app; optional in-app purchases
Position
Behind normal Mac windows
Account
No Pebble Reef account required

Frequently asked questions

Will the fish cover my other apps?

No. Pebble Reef is designed to remain behind your normal Mac windows.

Do I have to keep feeding the fish?

You can feed and interact with the fish when you choose. The app is designed as calm ambient company rather than a demanding reminder system.

Is the desktop pet free?

The base app is free on the Mac App Store. Optional content packs are sold through Apple in-app purchase.

Meet your fish.

Download the free desktop pet for Mac.

Open the Mac App Store