Can I use the One Top without the Tasty app? 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? Why does my One Top not reach its goal temperature? Do I need Facebook to use the One Top?