Meeter is described as 'simplifies your workflow for joining and issuing calls'. There are four alternatives to Meeter for Mac and iPhone. The best alternative is MeetingBar, which is both free and Open Source. Other great apps like Meeter are Superpowered (Paid), Chronos Zoom Link Organizer (Free) and Up Next (Free).
Up Next See your day at a glance. Integrated with Google Meet so you can quickly join meetings with command-J or present to meetings with shift-command-J. Up Next is a menu bar app for macOS 10.12+. Install the latest version from the App Store. ??