You could have downloaded OneBigDrive 1.0 for Mac from our application library for free. Setup_onebigdrive_macos_1_.dmg is the most common filename for this application's installer. The most popular version among OneBigDrive for Mac users is 1.0. This Mac app is a product of All Marketing Solutions, Inc. The software lies within Productivity Tools, more precisely Cloud Services.
From the developer:
OneBigDrive allows you to connect and secure all your clouds. This application allows you to consolidate multiple free and/or paid cloud storage accounts into one big drive. This simple application encrypts your files before sending them to the cloud.
You may want to check out more Mac applications, such as Kerio Sync Connector Installer, TimeWatch or Share Send, which might be related to OneBigDrive.