DTMF Decoder vs Phonal Tonal Usage & Stats

Turns your iPhone into a simple DTMF decoder. Simply hold the iPhone's microphone near to a clear source of DTMF tones (telephone "Touch Tones") and it will display the numbers being dialed. The decoded digits are also placed into a text area from which you can copy them to the clipboard. See it in action here: https://www.youtube.com/watch?v=l_QD8KFCJPw Source code freely available: https://github.com/veghead/ios-dtmf-decoder

Apple App Store
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Phonal Tonal

Back in the day, phreaks had phun on the phone, using colored boxes to get free phone calls. Of course, none of those tricks work anymore. Phonal Tonal generates a variety of phone tones for nostalgia, fun, and educational purposes. Blue Box, Red Box, Green Box, Special Information Tones, DTMF, and more.