What are some alternatives?
When comparing ZPanel and Sandstorm.io, you can also consider the following products
cPanel - With its first-class support and rich feature set, cPanel & WHM has been the web hosting industry's most reliable, intuitive control panel since 1997.
YunoHost - YunoHost is a Debian GNU/Linux based distribution packaged with free software that automates the...
Sentora - Sentora is an open-source web hosting control panel built specifically to work on a variety of Linux distributions. Sentora is licensed under the GPL and is a separately maintained fork of the original ZPanel project.
Cozy - Choose simplicity, get Cozy.
Webmin - Webmin, Usermin, Virtualmin, Cloudmin, Linux, System Administration
Linode - We make it simple to develop, deploy, and scale cloud infrastructure at the best price-to-performance ratio in the market.