The cat runs at the speed according to the CPU usage of your Mac.
By looking at the running of a cat, you can see how much CPU load is.

○ Free Trial Runners.
- Dinosaur
- Jack Russell Terrier
- Hedgehog
- Horse
- Penguin 2
- Hamster Wheel
- Octopus
- Steam Train

○ You can purchase various Runners at the Runners Store.
- Cheetah
- Dog
- Puppy
- Rabbit
- Frog
- Bird
- Penguin
- Dolphin
- Dragon
- Owl

- Cogwheel
- Bonfire
- Drop
- Rocket
- Pendulum
- Newton's Cradle
- Sine wave
- pulse
- Hot Coffee

○ It is also possible to always display CPU usage on the menu bar.

○ You can register self-made Runner using a new function which can be available at the Runners Store.

What’s New

Version 3.7

- Made fine adjustments to the UI.
- Added City as a free runner.
- Added Octopus (free trial runner).

※ Free Trial Version: 8 Runners (Dinosaur, Terrier, Hedgehog, Horse, Penguin 2, Hamster Wheel, Octopus, and Steam Train) will be free up to ver4.

Ratings and Reviews

3.9 out of 5
16 Ratings
16 Ratings
mousepad04 ,

Back to being a great app

Previous version was sweet — lots of animations to pick from and they looked great in the menu bar. Version 3.0 comes with only 3 animations and on my iMac running High Sierra with 2 monitors it’s just a white box on a black menu bar. Worthless. Hopefully the developer will address the issue. If you have a previous version, I suggest you don’t update.

UPDATE: I wrote the above review on 1/24 and the developer quicky fixed the issue. And a running human was added. Loving this app again.

Antifa Jet ,

Revised rating for 2019 (UPDATE AVAILABLE!)

What was once a simple, great app has fallen victim to the Andrew Wilson mindset of consumption - everything that was once taken for granted as a basic feature is now hidden behind a paywall. Looking forward to the original cat also becoming a "DLC".

What a joke.

UPDATE: Why on earth is the developer pushing out changes EVERY DAY?! Can you please just leave some animations as defaults and hide the rest behind your paywall, without having to update every day? This is the third time in 3 days there's an update available. I'm very tempted to find another app to do this task.

monokrome ,

This is pretty cute, but not great for performance.

This is def the cutest app in the app store, but unfortunately - even when my menu bar is hidden - it just sits around sucking up all of my battery.

Would be great to see it working a little more efficiently, but I can't use it for now :(


T Nakamura
8.1 MB

macOS 10.12 or later, 64-bit processor



Age Rating
Rated 4+
© 2018 Takuto Nakamura


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