You might be surprised to hear that the second biggest app store after Apple’s App Store is in fact, Getjar, a cross-platform aggregator of apps. It has over 50k apps on offer across 97% of phones and has had close to 1bn downloads of free and paid apps. It benefits from confusion over app availability and discovery and makes its money through referral fees from the app publisher.

Over 70% of its downloads are Java apps, with Nokia’s Symbian second with 12%.