All five are desktop applications for Windows, although some are compatible with Mac OS and Linux. At the end, you'll find a short list of feature comparisons (Table A). If you're supporting a small organization with an even smaller budget, consider one of these free software management solutions.
Unfortunately, proprietary software is usually expensive or ransomed via subscription fees.
Poor planning is the root of most project failures and interestingly, the smaller the project, the less scrutiny the plan gets! If you're managing projects, execution will benefit from tight tracking.