Bingo. We hear about some new iOS app and are interested but we're Android users. I would gladly give the developer my email so they can ask me to revisit this

Bingo. We hear about some new iOS app and are interested but we're Android users. I would gladly give the developer my email so they can ask me to revisit this later if/when they've got something/anything for Android, but I'm not going to remember to come back to this or heaven forbid poll/monitor it.