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CaliBrate - Make batch iCal changes Pick of the Week
The macosxhints Rating:

[Score: 9 out of 10]
If you've ever wanted to modify a number of events in iCal, you'll soon find it's basically not possible. That's where CaliBrate comes in, which I discovered last week when it was written up as a Mac Gem on I'd never heard of the program before, so I downloaded it and gave it a trial run.

Over the years, my iCal calendars have become something of a mess. There were near-duplicate calendars (Personal and Home, for instance), as well as calendars that contained events that I'd originally placed on one calendar but really wanted to have on another. CaliBrate made short work of all these changes. It's got an intuitive interface with four tabs, one of which is the About tab.

You start by specifying a Search, to find the events you'd like to modify. After running the search, click on Results to see which events were selected (as well as unselected events, and you can drag between the two types to create the ideal set of events to modify). You then click on the Act tab to choose the action to apply to the selected events. There are many different actions, including Delete, move or copy to a new or existing calendar, changing the events' dates and/or times, searching and replacing in title and notes, adding attendees, and much more. Click Perform Action, and the changes are made.

In my testing, CaliBrate worked perfectly, and helped me clean up a mess of calendars and events in a hurry. It may not be a utility you need every day, but when you do need it, it seems well worth the $8.00 asking price.
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CaliBrate - Make batch iCal changes
Authored by: vocaro on Jul 07, '08 10:33:11AM
There are also some iCal cleanup programs here:

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CaliBrate - Make batch iCal changes
Authored by: bluescotch on Jul 07, '08 03:31:28PM

Yeah well, waste of money and time. Sorry to say but all those functions you describe they are ALREADY INCLUDED in iCal. So why spend $8 for something that is useless. I suggest to spend your time researching in what a mac CANNOT do instead of posting stuff like this.


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CaliBrate - Make batch iCal changes
Authored by: joshforman on Jul 08, '08 11:50:53AM

iCal can find and remove duplicates?

my ical is a mess. I used CaliBrate to easily see a list of all these dupes, and other unnecessary entries.

Also being a Palm user who had Datebk3/4/5, I have many entries with a bunch of junk in the notes. So I searched for "##" in the notes with CaliBrate (which oddly iCal couldn't even do), and was able to clear all those notes out. Had iCal actually performed this search, I wouldn't have been able to edit them all at once.

Josh Forman

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CaliBrate - Make batch iCal changes
Authored by: loren_ryter on Jul 10, '08 02:22:40AM

If what CaliBrate does were already in iCal, do you think I would have taken the time to develop it? iCal does not allow you to batch process events. Sure, you can search in a rudimentary way, but then you can't do anything with multiple events other than view them. In theory iCal can delete old events, but when CaliBrate was first developed it wasn't working on Leopard and it may still not be. iCal does nothing with duplicates, its search functions are limited, and on an on. Please, before you post a comment like this, make sure you have at least investigated what the product actually does. Thank you.

Thanks for the review, MacOSXHints editors!
(from developer)

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CaliBrate - Make batch iCal changes
Authored by: Don.a.dio on Mar 01, '11 06:29:18AM

This app is very helpful, ICAL definitely doesn't allow for modification of events in batches. Calibrate is a major timesaver.

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