Vevox has a new Office 365 PowerPoint add-in that will replace the original PowerPoint add-in by September 2024. See this guide for the benefits of the new add-in and how to install it and start using it to deliver polls via PowerPoint.
Converting polls from the legacy add-in to the Office 365 add-in
Any polls you have run using the legacy PowerPoint add-in will be captured in your dashboard. When you log in to the Office 365 Vevox add-in in PowerPoint, you can add poll slides from any previous sessions in your dashboard to your presentation.