It hits an enormous user base: Apple says it has sold 250m iOS devices, including some 140m iPhones.
There have been multiple competitors that came in its wake – notably SoundHound and Sony's own TrackID – but they have been overshadowed by Shazam's enormous user base (it has more than 100 million monthly users).
But commenters have been quick to point out that Tidal will have to secure an enormous user base in order to be in a position to be able to sustain that model.
This type of partnership solves a problem for messaging apps, which have enormous user bases but no easy way to monetize them, and it's a boon for brands, which would receive not only additional exposure but also an enormous amount of formerly off-limits consumer information.
So we still have an enormous user base and growth and engagement.
Facebook's enormous user base means people are using it in all sorts of ways.
If record companies are smart, they'll do what Bertelsmann 's BMG Music did in October and embrace Napster's enormous user base and considerable brand equity.
But Facebook brings its enormous user base, advanced streaming back-end, and social graph to the fight.
Skype currently has an enormous user base, with 145 million average monthly connected users and 29 million concurrent users at peak times.
Instagram, meanwhile, is a free app, with no paid services, but an enormous user base of 27 million people, built so far only around iPhone usage.
