Cleanup if you have multiple CALC versions...

Please remove the Free version of CALC if you've purchased a standalone CALC Premium or CALC Swift versions. (This does not apply to the in-App purchase of the Premium version.) Removing the Free version will prevent confusion between the shared configuration memory of these separate CALC apps. For instance, if you run the Free version by accident later on, it may temporarily mess up some of your Settings and Converter preferences...

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