How to create this instagram edit?

[188]

(SKIP TO EXAMPLES IF YOU WANT)
Okay so I really wanna know what this app(s) is called! I always see popular Instagram accounts using it and they never tell you what it's called. So it like a collage with two scenes and it's blurry where they meet and something's there is words.
Example: go to Hungergameske or Switchedhd on Instagram, I wanna know how they do those types of pictures.

Example 2: http://instagram.com/p/lIpq_vgY2b/
http://instagram.com/p/gi-VGLt6m1/

Example 3: http://instagram.com/p/i5EHK6EckD/

I really wanna know how you can do that, like is their a app(s) or what? Someone please tell me!

[Maria]

Looks like something the app call picsart or pixlr express would do . Try those apps (: