You'll either annoy or delight those who follow you on Instagram/etc. by putting artsy typography over top of your shots of coffee cups, skies with clouds and fields of snow with Over ($1.99 in the App Store).
You can check out their Instagram or Tumblr feeds to get an idea of what's possible.
Sample of Over
https://instagram.com/p/Vj006ztEEw/
https://instagram.com/p/V9fiSVtEDO/
Could be neat if used properly. Very annoying if used a lot. With great power comes great responsibility.