For some reason my V10 gets very warm when I am listening to my podcasts. No screen on or nothing else on. This is the only time it gets warm. Ant ideas, also it seems to drain the battery.
My V10 remains very cool streaming internet radio (which would be the closest thing I have to a podcast)... Room temperature with the screen off. Only slightly warmer with the screen on and the auto-dim function. Have you checked the battery usage monitor to see what is consuming the most power?
What permissions are you allowing doggcatcher? Might want to try turning off the permissions it doesn't need.
Try uninstalling then reinstall the app and see if that helps. If it doesn't, and the hot temps worry you, consider an alternative. I'm using BeyondPod and have no problems with it. A good alternative to consider if you are looking.