Have you always secretly wanted a sonic screwdriver but never bought one due to ridicule from family/friends? (in my case I just told them it was cool and they should like it too)
Have you never bought a sonic screwdriver because it’s too expensive? (now that’s more like it/me)
There’s an app for that.
Seriously! You can get it from iTunes, and it turns your mobile device into a sonic screwdriver.