People management software is a category name rather than a product definition. In practice it covers the manager-facing half of HR: one-to-ones, goals, feedback, absence visibility and the team record, and most of it overlaps something you own.
The name covers three different products
One sort is a lightweight HR record for employers with no HRIS. Another is a performance and engagement layer that sits on top of an existing HRIS. A third is a manager dashboard bundled into a payroll suite. They are priced similarly and solve different problems, so the first job is deciding which of the three your shortlist actually contains.
Check what your current system already does
Most HRIS and payroll suites shipped goal tracking, one-to-one notes and absence views in the last few years. Employers routinely buy a people management tool to get features they are already licensed for, because nobody turned them on. Audit the incumbent before taking demos; it is the cheapest hour in the project.
Adoption is decided by the manager, not the buyer
These tools live or die on whether line managers use them weekly. That means the mobile view, the number of clicks to log a conversation, and whether it nags people usefully rather than constantly. Run a pilot with the managers who are least interested in HR software, not the enthusiasts, because they are the ones who decide whether the data is real.
Notes about people are records with obligations
One-to-one notes, feedback and performance comments are personal data. People can ask to see them, and what a manager typed in a hurry becomes evidence in a dispute. Set expectations and retention rules when you roll the tool out, and train managers that a field in a system is not a private notebook.
Questions people ask about people management software
Is this the same as an HRIS?
No. An HRIS is the system of record for employment data. People management tools are usually the manager-facing layer over it.
Can it replace performance reviews?
It can replace the annual form with a continuous record, which most managers prefer. It does not replace the conversation or the decision.
What size of employer needs one?
Usually above the point where the leadership no longer knows everyone, commonly somewhere past fifty staff.