Just in time, AppyFridays has three more awesome Mac apps that have gone on sale for free, but only for a limited time.

Type2Phone ($4.99 -> Free) — The app was featured by Apple and it was among Top 20 paid apps in App Store for quite a while. It allows to use your a Mac as Bluetooth keyboard to iPhone, iPad or Apple TV. Quickly type, dictate or paste text to your mobile device.

Dramatic Black & White ($5.99 -> Free) — This app lets you create awe inspiring black-and-white photography automatically from a snapshot or image. By removing color the photo transforms into a classic beauty with extraordinary light, texture and form.

Easy Music Converter ($9.99 -> Free) — This app is the fastest and the easiest batch music converter. The app lets extract audio from video, copy meta data, export files directly to iTunes library and a lot more in a few clicks.

All 3 apps will go free today in Mac App Store, however, this Sunday evening the sale will end. More details are available on the official website.