I remember seeing an app a couple months ago that made it able to open an app, while in a different one, and back. I can't for the life of me remember where it was or what it was called. I didn't like the restrictions it had at the time, but the developer was working on improvements, I know I wanted to follow up on it.

I tried MRoogle, I just can't seem to find the right keywords to come up with it.
Thanks for your help
I tried MRoogle, I just can't seem to find the right keywords to come up with it.
Thanks for your help