What's New
iDTMF ton frequency accuracy improved
App Description
iDTMF is a training aid for DTMF tone practice.
iPhone Screenshots
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App Changes
- March 04, 2014 Initial release
- September 04, 2014 New version 1.1
- November 05, 2014 Price increase: $0.99 -> $1.99
- January 06, 2015 Price decrease: $1.99 -> $0.99
- August 01, 2015 New version 1.3
- December 20, 2015 New version 1.4
- June 15, 2019 New version 1.5
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