interesting collection of tools.
However the tools are quite different and it depends on what you want to do.
testflight helps you to distribute the version among people. Good thing is that payment can be tested without ad-hoc provisioning profile and registered UDIDs. However, it's only for iOS and it takes time coz apple is processing it for quite some time and checks whether everything is correct in the ipa.
We use hockeyapp to distribute different versions of ann app (continous integration, final pre-release testing version and the production version).
So if you want to distribute a client on iOS and Android for testing by real humans on devices my recommendation is hockeyapp.
Several of the tools listed have automated testing, that is a totally different area and so far I rather experienced problems with that coz the tool needs to know how to interact with the app. As soon as you have calculated results which require interaction and thus are always different it gets difficult.