USB OTG Checker is one of the best android usb otg checker application that comes with awesome features like "One Click To check" and "RAM Cleaner".
USB OTG Checker supports any brands of usb device (i.e USB flash drive 2.0 or 3.0) keyboard mouse etc.

Speciality:
1) Totally add free
2) One can easily test his/her smartphones otg compatibility without wasting the money of a USB OTG Cable connector.


Extra features: (Coming Soon)

-Memory acceleration
-Garbage cleaning
-Self-start management (requires ROOT privileges)
-Software management (uninstall system or installed apps)
- Ram cleaner
- fastest phone cleaner
- ram booster
- Clean junk files
- Space Cleaner
- Cache cleaner
- storage clean up
- powerful cleaner
- Cleaner Master
- cleaning master
- powerful android phone cleaner
- cleans phone memory
- Memory storage cleaner
- Speed Booster
- app booster
- junk removal
- restore a storage capacity
- Notification Manager
- Phone Booster & Memory Cleaner.
- Clear Download History
- Clear Search History
- Clear Browser History
- Smart RAM Boost