busycontacts

Install command: 
brew install --cask busycontacts

Name: BusyContacts

Contact manager focusing on efficiency

https://www.busymac.com/busycontacts/index.html

Cask JSON API: /api/cask/busycontacts.json

Cask code: busycontacts.rb on GitHub

Current version: 2025.4.3

Requirements: macOS >= 10.15

Analytics:

Installs (30 days)
busycontacts 24
Installs (90 days)
busycontacts 48
Installs (365 days)
busycontacts 172