I showed up for an interview with a logbook pro printout in a nice binder at a Part 91 company. I had my green paper logbook in my bag just in case they wanted to see my endorsements. After I got the job, they asked me what program I used.
However, I'm sure someone out there might have a problem with it.
Why would they not allow them. The FAR just says "reliable record" not "In a green Jeppeson professional binder in a blue pen written in all caps."
Sec. 61.51 - Pilot logbooks.
(a) Training time and aeronautical experience. Each person must document and record the following time in a manner acceptable to the Administrator:
(1) Training and aeronautical experience used to meet the requirements for a certificate, rating, or flight review of this part.
(2) The aeronautical experience required for meeting the recent flight experience requirements of this part.