I normally use Wordswag to create inspirational images to share on social media. I even blogged about it. I was scheduling some posts in the iOS Hootsuite app and was prompted to try their photo editing app, Enhance.
Once installed, you can use an image you have or you can search for royalty free images:
Once you have an image, you can crop it, change orientation or add effects. I like how you can add a logo or watermark. The text options are really good as well.
Lastly, you can save, share your image or schedule it in Hootsuite!