AppX Alessandro Sassi App Development Site for Application Developed by Alessandro Sassi. Two years Apple WWDC winner has developed some APP you can find from here. .... Applications ... QUICKNOTES X The best app to take handwritten notes on your iPhone and iPad in a simple and fast way GLADIUS X The best 8-bit gladiators game on the App Store Geometry Run. ... more to come ... .... Download ... Take notes easily with QuickNotes X. Organize your handwritten notes in notebooks with a selection of covers and paper templates and export them as PDF or PNG images +350,000 Immediately at your finger.