The first App will be the X2Beep.
The new X2 Decoder has no headphone connection anymore. Because there
are a lot of timekeepers who rely on the beeps we made X2Beep. X2Beep
can be installed on a PC or laptop and beeps on every passing. For every
loop the beep frequency can be set. Even for loops on decoders that are
on the track and not in the timekeeping room.