Hi Julia,
You can defiantly POC Target for your mobile apps without deploying a new app to Apple or Google Play store. Start by adding a targetLocationRequest (mbox) to your app. This creates a container around a specific element on the screen or has the ability to manipulate multiple UI elements on the same screen. Next, create a targetLoadRequest. This is how you manage the response back from Target.
Happy to discuss further, but the documentation Parit shared should get you started.
Thanks,
Kollin