Presentation.io is a service that helps your audience follow along with your presentations. Presentation.io does this by allowing the members of your audience to see your slides on their laptops, iPads, and Android tablets and watch them change when you advance your slides. This ensures that everyone is on the same slide at the same time. This week Presentation.io added a new option that allows you to use your cell phone as a remote to control your slides.
To start using Presentation.io upload a PPT or PDF to your free Presentation.io account. Presentation.io then gives you a URL to distribute to your audience. When the members of your audience open that URL they will be able to see and follow along with your presentation. When you're done with your presentation just click "stop presenting" and the synchronization stops. To use your phone as a remote just start your presentation and Presentation.io will send you a text with a link to make your phone a remote. Simply upload your presentation, click "Settings" and then "Use mobile phone as controller."
The free version of Presentation.io keeps your presentation on file for four hours before it expires.