For a simple app, cordova and react native would be overkill. Just think for a moment whether you really need a mobile app. Unless you are going to do a lot of

For a simple app, cordova and react native would be overkill. Just think for a moment whether you really need a mobile app. Unless you are going to do a lot of client side interaction on the mobile like ordering, i'd recommend you to create a simple website. Use foundation or bootstrap to create a simple, responsive website. If you really feel that you requirements can change over time towards more heavy interactivity, use django to create a json api that would be consumed by a responsive react based frontend exclusively using ajax calls (Look to reddit's mobile site for an example). This allows you to scale to native mobile apps if the need arises in the future. Since you have zero experience with web and mobile, jumping head first into react native and cordova and mobile would be a big folly. Make and ship a regular, responsive website first before even thinking about mobile apps. Shipping out small but working apps and improving on them is better that spending months on an all encompassing platform that only exists on paper.