Company Carol Bishop created these great apps:
Speech Sounds on Cue (Aus Eng), Speech Sounds on Cue Lite Aus, Speech Sounds on Cue Lite US, Speech Sounds on Cue (US Eng), Speech Sounds for Kids - Aus, Speech Sounds For Kids - USA, Speech Sounds For Kids Lite - Australian Edition, Speech Sounds For Kids Lite - US Edition, and others..
