I guess there's no way but if it's open source, like this one, you can recompile it. The iOS version seems to use CocoaPods for the dependencies so it should be easy to compile the project.
Even that isn't strictly guaranteed to work; have you read ken's Reflections on Trusting Trust? Strictly speaking, you'd need to hand-compile (or at least hand-verify) the app, and trust the underlying platform as well (dalvik and/or the hardware).
