Apple App Analytics - Apple's very own iTunes Connect App Analytics
StatCounter - StatCounter is a simple but powerful real-time web analytics service that helps you track, analyse and understand your visitors so you can make good decisions to become more successful online.
My Motiff - Allowing you to stay connected in realtime
Histats - Start tracking your visitors in 1 minute!
Usage Analytics in appFigures - Track usage for your app along side downloads, ranks & more
Matomo - Matomo is an open-source web analytics platform