• Logbook Pro for Apple iOS version 8.1 is now available on the App Store. Major update including signature endorsements and dark/light theme support. Click here to install now.
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Correction Entries...


Nov 19, 2001
Is logbook pro capable of negative values? For example, if I realized that I made a mistake on a previous entry and want to correct it by subtracting the value how would I do this? I also keep a paper logbook in which the lines match those of my logbook pro file line for line. Therefore, I'd like to be able to correct the incorrect entry by entering a value with a negative number rather than editing the original entry in order to maintain the integrity of my logbook and matching records between my traditional paper log and LogbookPro file.

Post Edited (pilotbum) : 1/14/2005 4:38:30 AM GMT

Neal Culiner

Founder, President
Staff member
Nov 14, 2001
Logbook Pro is not designed for negative 'correction' entries. It has not been tested and most likely will not work. The concept of the e-Logbook is to have the ability and go back and correct a prior entry, but I do understand your intent is to keep your e-Log in sync with your paper logbook.