Mimo is described as 'Usenet Browser + Search' and is a usenet news client in the news & books category. There are more than 25 alternatives to Mimo for a variety of platforms, including Windows, Linux, Mac, Android and BSD apps. The best Mimo alternative is SABnzbd, which is both free and Open Source. Other great apps like Mimo are NZBGet, GrabIt, alt.binz and NewsBin.
SABnzbd is a free/open-source cross-platform binary newsreader written in Python.
The most efficient usenet downloader. NZBGet is written in C++ and designed with performance in mind to achieve maximum download speed by using very little system resources.
GrabIt is a free application that enables you to easily find and download content from Usenet news servers. The familiar looking interface makes selecting and downloading files intuitive and easy.
alt.binz is a powerful binary newsreader, for downloading and managing articles from Usenet. Checking the downloaded files, auto unpausing missing PAR2 blocks, repairing, and finally unraring them, are just a few options in this utility.
NewsBin Pro is a Usenet NNTP newsreader that downloads and decodes binary file attachments to Usenet posts.
HelloNzb - The Binary Usenet Tool
With HelloNzb you can download (binary) files from Usenet servers via NZB index files. The software is based on Java and can thus run on many platforms (tested on Windows and Linux). Automatic archive verification via PAR2, automatic RAR archive.
Pan is a newsreader, loosely based on Agent and Gravity, which attempts to be pleasant to use for new and advanced users alike. It has all the typical features found in newsreaders, and also supports offline reading, multiple connections, and a number of features for power users...
It works, it's being supported.
GetNZB is a free Newsreader software with integrated NNTP access for downloading files from Usenet. Register and get free Trial account now! GetNZB - Powerful and convenient Usenet Downloader
NewsLeecher is a tool made for fetching and managing articles from the Usenet. It downloads Usenet articles in a snap, and uses its inline engine to assemble and decode all the downloads. The powerful featureset and state-of-the-art user interface makes it an application...
A powerful Mac usenet client to browse usenet, create and reply to messages and download files.
nzb360 is a full-featured NZB / torrent manager that focuses on providing the best experience possible for controlling all of your usenet and torrent needs.
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You have to do the same process in two steps, download an nzb, upload it to this and then maybe(?) get the file...it's never worked for me.