At the moment, Unless doesn't support native mobile environments like iOS and Android.
We do support HTML. Any HTML rendered on a mobile device will work with Unless even if you use tools like Cordova. However, depending on your app, our live content editing features might not be suitable for editing on a mobile device.
We know that it would be really sweet if you could change any text instantly in your smartphone app without having to go through the AppStore's submission process, so we do have that feature request on our roadmap.