Creating an app with voice recognition exclusively for mobile devices

I'm looking to create a digital teacher to help stimulate the learning experience of my students. Instead of integrating a voice recognition service, I would simply like to use the native ASR features present on most mobile devices. I am new here, and I was actually just hoping to get an opinion from someone with more experience using Voiceflow. If I create an app that is exclusive for mobile devices, would this bypass the need for voice recognition integration?