https://en.wikipedia.org/wiki/Robotium tells me it's deeper than an APK. I can't guess why you as a developer would ask this. I'm not slighting you in the least but a developer would hit up the Robotium stie for more as well as if they need to, join the mailing list.

Besides you would do testing of your app your chosen way until you sort this out. Which means this app is not needed by most.