What is the Waterfall Photo Montage application, how does it work?

According to the introduction of Free Apps House, Waterfall Photo Montage is a Photography app on the Android platform. There is currently a 1.3 version released on Sep 23, 2016, you can see the details below.

See you near waterfall in hot summer.
Features:
1-Once you install this FREE app, use it without internet connection.
2- Beautiful, attractive, colorful and fashionable designs.
3- Very easy to use.
4- You can save your completed work and can share it on social media like facebook, whatsapp, twitter, email it etc.
How to use:
1- Download it Free, install and run the app.
2- Select a design, you like most.
3- Use a photo from your gallery or capture it from camera.
4- Please use appropriate angle of face for best result.
5- Use your fingers to set your photo it at right place.
6- You can see your photo clear behind the frame to set it at right place.
7- But when you will save your completed work, no behind shadow will appear.
7- Use 2 fingers to rotate your inserted photo and to enlarge it.
8- You can use flip option to change the directions of face.

Disclaimer:
this application complies with US copyright law guidelines of fair use. If you feel there is a direct copyright or trademark violation that doesn't follow within the fair use guidelines, please contact us directly.

Make sure that third-party apps are allowed on your device: go to Menu->Settings->Security-> and check "Unknown Sources"

Tap the APK file. Allow the app any required permissions it asks for. Then, at the bottom of the installer window, click INSTALL.

You'll see a confirmation the app is installed. Now you'll see the app available in your list of installed apps.