<p>ATLAS.ti is a tool for systematic qualitative data analysis released under a for-pay license. It offers multi-window frames, overviews generated through interactive network views utilizing visual interconnections, and cloud views and reports. A free demo version is also availalble, and does not include a time limit. This tool was first developed in 1989 and has been in continous development since. The web edition has been available since 2002.</p>