CaliBrate for Mac allows you to create custom calendar search criteria, load a number of events that match that criteria, and then edit, move, or copy/paste them in bulk. The result is an app that could be useful if only it provided more guidance on how to use its many functions. While the tool offers quite a few options for how to search and edit events, the options are not always easy to navigate.
When you open CaliBrate, you can start searching immediately, but must allow it access to your calendars. On the main screen, you will set search criteria, choosing when to search, what events to look for, and which calendar to search on. You can then filter those results in search, and then define actions, all on different screens. There is no walk-through here -- everything is onscreen in five screens, but it won't tell you when to do the next step or what that next step necessarily entails. As a result, you might spend quite a bit of time jumping back and forth between options to see what you can do with the data you just pulled. The search function was fairly quick and the interface is all there; but without a clear indication of what everything does, there is a learning curve.
Despite that learning curve, the app works as advertised and has quite a few functions. We experienced no slow down or bugs during our tests and were able to make batch edits fairly quickly in a number of different calendars stored on a Mac. This is a trial version of the software and has limitations in how you can use the tools; the full version would be useful for someone who makes frequent bulk changes to their calendar, however.
Editors' note: This is a review of the trial version of CaliBrate for Mac 1.8.4