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Practice for various basic mathematical operations.
"Quick Math is perfect for students to improve their all round mathematics ability" - Apps In Education...
Change your voice in voice chat rooms and on PC-to-phone connections.
Capture audio from microphone and change the voice to that of an old man or a child.
Voice Screen Lock - Unlock Screen By Voice is a smart lock screen works on with your voice commands which makes your phone unique from others...
Access your Google Voice account right from your iPhone, iPad and iPod Touch.
Voice Lock Screen Speak something to unlock your phone. Speak voice command to unlock your phone.
"Animal Sound Voice Changer" and distorter lets you record yourself and make funny sounds. A funny voice changer free with cat meowing sounds...
Voice Changing software for the Macintosh Computer
A math puzzle of 4 cards.