Lately there has been more and more apps available with Ableton Link the latest one being brought to my attention is Beatonal.
The app is still in Beta but the developer is searching for more Beta testers until it gets fully released.
Last but not least:
Early BETA testers can grab it for free until 22nd of August 2017.
To read more about the app and how to sign up for some Beta action go here:
http://www.planet-h.com/gstomperbb/viewtopic.php?t=624&p=2201#p2201