JAX

I use CRESCENDO on my main desktop computer, but there are times I would like to put a few notes down while I am (say) watching tv, or listening to some music - and this away from my computer. I have tried to download CRESCENDO on my iPad, but am unable to do so. I have an old Samsung Android tablet which needs repairing. If I get it repaired, could I download CRESCENDO onto that? Any advice would be very helpful, thanks.