Tiki is very flexible full-featured multilingual content management system (CMS) which you can use “out-of-the-box” to build your own website (PWA or anything else you can imagine to access using a web browser).
It is a Free/Libre OpenSource Software (licensed under GNU/LGPL) which is being released every 8 months under the Tiki Wiki CMS Groupware project. Tiki is a "wiki-way" all-in-one application powered by PHP, MySQL, Zend Framework, jQuery, Bootstrap and Smarty. Actively developed by large international community of contributors and translated in over 40 languages Tiki can be used to create all sorts of web-based applications like blogs, news sites, portals, knowledge bases, community wikis, company intranets or extranets.
Tiki offers a very large number of features out-of-the-box. Arguably more than any other Open Source Web Application. Highly configurable & modular, all the features are optional and easily administered via any web browser.
Major features include a robust wiki engine, news articles, discussion forums, newsletters, blogs, a file/image gallery, data tracker (e.g. for bug & issues, form generator), a links directory, polls/surveys and quizzes, a FAQ, a banner management system, a calendar, geolocation with maps, RSS feeds, a category system, tags, an advanced templating system, inter-user messages, a menu generator, a powerful user, group and permission system, internal search engine, external authentication support, and much more.
Based on our record, Freshservice seems to be more popular. It has been mentiond 3 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
If you're fine with writing emails instead of filling in an Outlook form (as a user), then https://freshservice.com/ might work. Source: about 2 years ago
FreshService is pretty good and ticks all the boxes you're looking for (https://freshservice.com/). Source: over 2 years ago
If you're not capable of hosting the solution yourself, there are solutions that have per-agent models that will cost you much less than SchoolDude, all while being substantially more feature rich. osTicket and FreshService are both great examples. A cloud hosted instance of osTicket is only $9/agent/month. FreshService is a more polished solution, but costs more at $19/agent/month. Source: about 3 years ago
DokuWiki - DokuWiki is a simple to use and highly versatile Open Source wiki software that doesn't require a database.
Asana - Asana project management is an effort to re-imagine how we work together, through modern productivity software. Fast and versatile, Asana helps individuals and groups get more done.
MediaWiki - MediaWiki is a free software wiki package written in PHP, originally for use on Wikipedia.
Redmine - Flexible project management web application
WordPress - WordPress is web software you can use to create a beautiful website or blog. We like to say that WordPress is both free and priceless at the same time.
Basecamp - A simple and elegant project management system.