Free also allows users software for linux

Darwin Calendar Server provides a CalDAV server.

The Darwin Calendar Server is a standards-compliant server that allows multiple users to collaboratively share calendaring information. It provides a shared location on the network to store schedules, and allows users to send each other and manage invitations.

In order to provide interoperability with multiple calendaring clients, the server implements the CalDAV protocol, which is an extension of WebDAV, which is in turn an extension of HTTP.

TuxUsers application is a user management KControl module and stand alone utility.
It allows very wasy user accounts management:
- User creation, deletion and modification.
- Change KDM start icon.
- Predefined groups for new users to ease new user permissions.
- Thinkfinger fingerprint reader suported to add easily fingerprint auth. for your system.

Service Management is a Web application that allows users to manage service and repair, including work orders, service scheduling, service calls, preventative maintenance, and customer contact information.
Enhancements:
- Some bugfixes were made for PHP5.
- A new interface was implemented.

Supervisor is a client/server system that allows its users to control a number of processes on UNIX-like operating systems. It was inspired by the following:
- It is often inconvenient to need to write "rc.d" scripts for every single process instance. rc.d scripts are a great lowest-common-denominator form of process initialization/autostart/management, but they can be painful to write and maintain. Additionally, rc.d scripts cannot automatically restart a crashed process and many programs do not restart themselves properly on a crash. Supervisord starts processes as its subprocesses, and can be configured to automatically restart them on a crash. It can also automatically be configured to start processes on its own invocation.
- Its often difficult to get accurate up/down status on processes on UNIX. Pidfiles often lie. Supervisord starts processes as subprocesses, so it always knows the true up/down status of its children and can be queried conveniently for this data.
- Users who need to control process state often need only to do that. They dont want or need full-blown shell access to the machine on which the processes are running. Supervisorctl allows a very limited form of access to the machine, essentially allowing users to see process status and control supervisord-controlled subprocesses by emitting "stop", "start", and "restart" commands from a simple shell or web UI.
- Users often need to control processes on many machines. Supervisor provides a simple, secure, and uniform mechanism for interactively and automatically controlling processes on groups of machines.
- Processes which listen on "low" TCP ports often need to be started and restarted as the root user (a UNIX misfeature). Its usually the case that its perfectly fine to allow "normal" people to stop or restart such a process, but providing them with shell access is often impractical, and providing them with root access or sudo access is often impossible. Its also (rightly) difficult to explain to them why this problem exists. If supervisord is started as root, it is possible to allow "normal" users to control such processes without needing to explain the intricacies of the problem to them.
- Processes often need to be started and stopped in groups, sometimes even in a "priority order". Its often difficult to explain to people how to do this. Supervisor allows you to assign priorities to processes, and allows user to emit commands via the supervisorctl client like "start all", and "restart all", which starts them in the preassigned priority order. Additionally, processes can be grouped into "process groups" and a set of logically related processes can be stopped and started as a unit.

ePoll provides a Web-based poll written in server side Java.
ePoll is a Web-based poll written in server-side Java. It allows polls to be set up and administered. The content of the poll can be completely customized, and multiple-choice questions can have specific sets of answers. Statistics can be collected from the poll and reported on.
Main features:
- Voting and results viewing
- Multiple poll categories
- Multiple polling booths
- Polling booth security control
- Allows administrators to set up polls in the system and supply the set of opinions from which the user has to choose
- Allows administrators to configure the system to allow one vote per poll per user or multiple votes per user
- Allows users to register a vote on polls on the site
- Allows users to see the results of a vote broken down into total votes and number of votes for each option
- Allows users to list all polls running on the site
Enhancements:
- This release fixes many deprecations and compatibility with Expresso 5.6.

PKSampler project is a live-dj tool. It is different from other "live DJ tools" in that it focuses on allowing the user to mix lots of samples at once. The focus is on a simple touchscreen interface that allows quick access to user supplied loops and samples.

Simple dictionary application project allows users to use any plain text dictionary that is UTF-8 with one translation per line and words separated by tabulators.

Applications allow users to use free bilingual dictionaries offline. All dictionaries have to be UTF-8 files with one translation per line and words separated by tabulators. Hundreds of free bilingual dictionaries can be created and downloaded from the Universal dictionary system. Universal dictionary currently interconnects 33 languages (Afrikaans, Basque, Bulgarian, Croatian, Czech, Danish, Dutch, English, Esperanto, Estonian, Finnish, French, German, Greek, Hungarian, Icelandic, Indonesian, Italian, Japanese, Japanese Romaji, Latin, Lithuanian, Norwegian Bokmal, Polish, Portuguese, Romanian, Russian, Simplified Chinese, Slovak, Slovenian, Spanish, Swedish, Turkish)

Finomaton project allows users comfortably draw and typeset finite state machines (automata).

The resulting graphs can be exported to plain MetaPost and subsequently be included in TeX and LaTeX documents for excellent typesetting quality. Contrary to many other packages, the mouse can be used to interactively move objects around.

States are magnetic to facilitate connection, and any TeX command can be embedded in the labels of states and lines.