Great app for phone, trying on my iPad. – Electrodroid Pro Review

I use it all the time for frequencies calculations and wavelengths. Already have a free version on my Samsung S 4, and just purchased $2,99 Pro version for IPad. Would be nice if the app had some information about Mosfets, Bjts, transistors, maybe a calculator for Mosfets protection using resistors and zeners, etc. Also would be nice not to pay again to have this PRO app on my Samsung phone as I have already purchased a PRO version for the iPad but can't transfer the pro version to Samsung, can I?
Review by booknook@ on Electrodroid Pro.