If the question is whether an S10 is ANT+ compatible, the answer is yes, no doubt. I've used S5, S7 and S10 with all types of sensors. Can't really recommend an app -- I use phones to navigate using Locus PRO, which doesn't support power meters. I've installed and tested Stages (lower end power meters) app, though -- it works. I vaguely remember trying a few apps, but they are probably in the apps graveyard that you are referring to. I've settled on a Garmin Fenix 5 watch to record data (and navigate no-brainers) and on Locus Pro to navigate tricky segments.