Agreed... Mojo works very well with iPhone 6s and takes to sound to a much higher level! That is high praise as iPhone 6s already sounds very very good. Using Tidal and Deezer, nothing else is needed. There isn't, probably there won't ever be (unless Chord or a similar high-end audio company releases one) a DAP that can quite reach the sound quality of Mojo. Mojo is a game changer, for 399 quid, you get far better sound than the 3000 quid AK 380. All you need is a compatible (preferably an iPhone since Android phones can be incompatible) smartphone.
I hope Fiio hurries up and releases that Lightning cable soon.
A quick email to Chord or their distributrs should tell you which phones work, Android phones should work easily with the Mojo - mine worked without a hitch