CityRat
Four modes. Plenty of bite.
About
Explore four distinct distortion effects for your music. Shape your sound with adjustable distortion, filter, and volume controls. This app offers mono and stereo processing, AUv3 compatibility, and MIDI control.
What's New in CityRat
1.0.2
October 30, 2026
Renamed the app to CityRat and mode B to OG. Improved the illuminated eye, city background and control guide at different window sizes.
Developer apps
FAQ
What are the four distortion modes in CityRat?
CityRat offers four distinct distortion voices: VOLT (original measured input-overload), OG (classic hardware-shaped distortion), HARD (direct digital hard clipping), and TURBO (open, forceful hardware-shaped distortion).
Can I use CityRat with my guitar?
Yes, you can use CityRat with your guitar by connecting it through an audio interface. The standalone app starts muted for safe setup before going live.
Does CityRat require a subscription?
No, CityRat does not require an account, subscription, or activation. It is a one-time purchase for Mac, iPad, and iPhone.
What devices is CityRat compatible with?
CityRat is compatible with Mac, iPhone, and iPad devices. It also supports iPod.
How often is CityRat updated?
The latest version is 1.0.2, updated on October 30, 2026. While specific update frequency isn't detailed, the app has received updates since its release.
Does CityRat have ads?
No, CityRat does not contain advertisements. It is a paid application with no ads.
What is the age rating for CityRat?
CityRat has an age rating of 4+, making it suitable for a wide range of users.
Can CityRat be used in a music production host?
Yes, CityRat functions as an AUv3 effect, allowing it to be used within compatible music hosts for advanced audio processing.