The flexible filter system in Planfred ensures that only the most current status of the respective plan appears in the plan list. The current status is therefore immediately visible for each project participant, and user errors can be avoided. On the other hand, Dropbox, etc. work with folder structures, in which case the current plan status of all plans is not apparent at a glance. Tiresome searching represents an unnecessary source of errors. Tracing up and downloads is also completely absent from other systems. Planfred traceably documents all interactions. Furthermore, a program needs to be installed by each participant for shared Dropbox, which isn’t required for Planfred.