When comparing PAC Manager vs Shellngn - Cloud Based SSH Client, the Slant community recommends PAC Manager for most people. In the question“What are the best SSH clients for UNIX-like systems?” PAC Manager is ranked 10th while Shellngn - Cloud Based SSH Client is ranked 12th.
Ranked in these QuestionsQuestion Ranking
Pros
Pro PAC is pretty simple and does its job of collecting and managing a list of connections that can be quicly used to connect to some machine through SSH
Pro SSH & SFTP in your browser
Since this tool is cloud-based, there's no need to download and install anything. You can simpy run it from the browser.
Pro RDP/VNC Support
Pro Always up to date
Pro Your devices are available on any device
Pro Tunnel support
Pro RDP/VNC In your browser
Remote desktop your servers from the browser.
Pro Telnet Support
Cons
Con The developer officially abandoned the project
Early in 2017 the developer announced that he had no interest in continuing to develop it. Not a single line of code has been added or improved since then,
Con Heavily dependent on long-forgotten libraries
PAC Manager draws its underlying terminal functions from the Perl libraries written to interface with GNOME Terminal, circa...2006. The libraries have been untouched for at least five or six years, and just recently have begun to be removed from major distribution repositories like Debian and Ubuntu. It's a chore to get them installed and will only continue to get harder.
Con The tool has problems with blocking focus on its window, so sometimes it's hard to quickly switch to another one
Con Expensive
$3.90 per month
Con Not free
In fact not only not free, but only available at a subscription basis.
Con Sluggish output
It's ok for a quick session, but compared to native apps it's output is slow.
Con Lack of configurability
Not enough options to trim it to your needs.