Download of ProteoCloud 1.1 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.
Please check the Mac app with an antivirus before launch as it is downloaded from the developer's website, and we cannot ensure that it is safe. The software is included in Education Tools. This free Mac application is a product of Thilo Muth and Lennart Martens.
From the developer:
ProteoCloud is a Java-based proteomics cloud computing pipeline system for peptide and protein identfications. It supports database searching and de novo. Requiring only MGF files as input the pipeline is able to identify peptides and proteins from tandem mass spectra. The search can be done on multiple servers and the results are stored on a centralized SQL server in the cloud.
You may want to check out more Mac applications, such as sciatrope, Analytics to Earth or TreeView X, which might be related to ProteoCloud.