Screen Snap Recorder - No Root

A free app that allows users to record their smartphone screens.
Audio is recorded through the microphone, which makes it possible to use the app for gameplay videos, Snapchat, etc.
The video quality of the screen recording can be adjusted, meaning that high frame rates and full HD video can be beautifully recorded.
Recorded videos can be used with chat application such as Snapchat without limitations.

The main functions of Screen Snap Recorder - No Root

Screen recording function
Size setting for video recordings
Automatic stop timer function (options include 30 minutes, one hour, no limit)
Audio recording can be switched on or off
Three second starting countdown timer function
Usable with Snapchat and other services
Shareable on Twitter / Facebook
Tutorial videos available at any time for reference