This iSELCAL App is a tone encoder which sounds SELCAL selective calling tones.
The tones are produced in accordance with ICAO Annex 10 Volume II, ARINC Characteristic 714-6 Mark 3 and ASRI SELCAL specifications.
It can be of great use to check SELCAL decoders since you will always have it with you, unlike those expensive and few SELCAL text boxes which are never around when you need them.
iOS 6.0 compatibility ensured, minor improvements.
With Family Sharing set up, up to six family members can use this app.