Storm.dev is described as 'A collaborative network of nodes. Storm is the way to improve the management of your web application' and is an app in the OS & Utilities category. There are more than 100 alternatives to Storm.dev for a variety of platforms, including Linux, Windows, Online / Web-based, Mac and Self-Hosted solutions. The best alternative is GitLab, which is both free and Open Source. Other great apps like Storm.dev are Zabbix (Free, Open Source), JIRA (Paid), Jenkins (Free, Open Source) and Nagios (Freemium, Open Source).
Tsung (formerly IDX-Tsunami) is a distributed load testing tool. It is protocol-independent and can currently be used to stress HTTP, WebDAV, SOAP, PostgreSQL, MySQL, LDAP and Jabber/XMPP servers. It is distributed under the GNU General Public License version 2.