App designed with calculate icon for private ( protect by pin code), "Vibrate app" will turn your phone to vibrate device, you can use it to test vibrate of phone, massage or do something you like, I have test on SamSung Galaxy, HTC, Sony, Xiaomi phone it worked well. Have fun with this tool :)
#Features:
Hide other eyes with calculator icon
Test vibrate
Massage
More vibrate mode
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9Apps 4.9
