Can I use the One Top without the Tasty app? Matthew M. March 20, 2018 19:16 Updated Yes. You will be able to use the One Top in Direct mode as a normal induction cooktop. In Direct mode, the Tasty app is optional and you can control power levels via the buttons on the front of the cooktop. Note: For more information on Direct mode 🤔, visit How do I cook in Direct Mode? Related articles How do I cook in Direct Mode? Can I set a specific temperature without the Tasty app? Do I need Facebook to use the One Top? Do you have an Android app? Do I have to follow the ingredients exactly?