Download of PencilCase 1.0.1 for Mac was on the developer's website when we last checked. We cannot confirm if there is a free download of this app available. We recommend checking the downloaded files with any free antivirus. This Mac app is a product of Robots and Pencils. The application lies within Developer Tools, more precisely IDE.
From the developer:
PencilCase is an application that allows you to create applications for iPhone and iPad. Using the built-in Cards and Supplies, you can incorporate the features you expect to see in mobile apps, from menus to buttons to galleries. Also you can share your finished applications.
You may want to check out more Mac applications, such as Objective Basic, AngelTemplate or Universal Document, which might be related to PencilCase.