unCloud 1.0 for Mac could be downloaded from the developer's website when we last checked. We cannot confirm if there is a free download of this app available.
According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. The software belongs to Internet & Network Tools. This free Mac application is a product of Rui Guerra and David Jonas.
From the developer:
unCloud is an application that enables anyone with a laptop to create an open wireless network and distribute their own information. Once it is launched, a passerby using a mobile Internet device can connect to this open wireless network. Users can access information wirelessly while at the same time remain disconnected from the Internet.
You may want to check out more software for Mac, such as Unclouder, which might be similar to unCloud.