Most teams start with what is already there: comments right inside PowerPoint. That works, until a deck goes through three versions, two departments and an external agency. Here is where each approach shines.

How the two compare

PowerPoint comments Slider
Pin to an exact spot On objects Any point or area
Voice and video comments — ✓
Outside reviewers Need file access Invite by mail or link
Live presence ✓ co-authoring ✓ with follow mode
Feedback across versions Stays in one file Matched, changes flagged
Self-hosting in the EU — ✓ one command

When PowerPoint comments are enough

If one or two people leave a few notes in the same file and nobody outside your company needs to look, built-in comments are quick and free. They live inside the .pptx, so they travel with it.

When Slider saves a round

As soon as feedback comes from several people, or from someone without access to your OneDrive, Slider keeps it in one place. Everyone sees each comment on the spot it is about, can answer by voice or video, and when you upload version 4, comments follow the slides they belong to.