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.