Butterflies for Android
Very expansive resource
Very useful
Very informative
Not for casual ID or beginners. Abysmal search function: finds only scientific names. Cant search by color or common name. Info on each species is good but brief. Samsung Note 2. Uninstalling.
Good
I was not impressed by one butterfly. The green hairstreak. I don't know what they had but it's not what I have. Also, it seems that the ones they have are out of London. Some others seem to be from there.
Excellent app
by H####:
Great reference for free version. Informative for most part and detailed on most.