JN Soundboard - An open-source hotkey soundboard program
Soundplant - Play sound files with the computer keyboard
Soundboard Studio - Soundboard Studio lets you take your podcast, live show, gig or performance to the next level.
iJingle - Instant playback of jingles, sound effects and music, right from your smartphone or tablet.
Soundpad - Play sounds in voice chats in high digital quality.
Farrago - Intuitive soundboard app to quickly play sound bites, audio effects, and music clips.