Kallu vs Sharplet

Free conference call over the phone, easy, software-free, unlimited, worldwide, reliable

Kallu is simply a free, unlimited and worldwide conference call service over the phone that everyone can use for personal or professional purposes.

Kallu works like a regular phone call, everywhere, on any phone. Wherever you can make a call, you can call with Kallu.

Location: Barcelona, Spain

Course marketplace for learning and remembering course content indefinitely.

Sharplet is a web application that allows users to remember more in less time. It uses the highly effective “spaced repetition” learning method to optimally schedule flashcard review sessions. This method helps users commit whatever it is they want to learn to long-term memory in an extremely efficient manner. Ultimately, this means users spend less time revising what they already know and more time on what they don’t.