Just downloaded to my ipad1 , works a treat but only iphone sized.
The ipad has a much longer battery life so it's easily worth it.
Can't complain at 69p
Don't thank me ... thank MarkCW for finding it to start with ...
for 69p it was worth "upgrading" my original iPhone Navionics ...
I'll load it onto the iPad too ... and just use the 2x zoom - it won't be as good as the proper iPad one - but for 69p and the limited use it will get (got 2 chartplotters onboard anyway!) it's worth it.