Company Marc Kerstein created these great apps:
WebFX, ChargeMe - Fake Battery Charging for iPhone, Earworm, DoubleTake, Diverter, CardTrack - The Card Tracker, The Jerx, Decibel - Ellusionist, PrivacyMessage: Messages turn invisible 4feet away, WikiTest, Xeno - Reveal A Thought, BioSwap, Streets Pro, Amalgam by Marc Kerstein, Inertia Pro, WikiTest Peek, TimedOut, ISO - Kerstein & Qualter, Subliminal, and others..
