The free edition of KPT V1.4 for PowerPoint for Mac.
It adds a KPT Basic tab to PowerPoint with the everyday tools: split text into paragraphs or lines, merge, change case (your colours stay), paragraph alignment and left-to-right / right-to-left direction; align, distribute and make shapes the same size; and Format Table with three colour presets. Everything else shows as a locked button that tells you what it does in KPT ADVANCED.
It installs next to KPT V1.4 (and your other KPT add-ins) without touching them: a different file, a different tab and a different folder.
The installer asks for your Mac password because PowerPoint reads add-ins from a folder shared by every user of this Mac. No account, no ads, no tracking, nothing is sent anywhere.