Code

Mobile app frameworks

5 technologies: what each one does, whether it is SaaS or open source, its price range and its website.
  • Flutter

    5.5K sitesOpen source

    Flutter is an open source framework by Google for building beautiful, natively compiled, multi-platform applications from a single codebase.

    Used byiFood,Nubank,QuintoAndar

  • Capacitor

    Open source

    Wraps a web app into iPhone and Android apps with access to native features.

  • Devise

    Open source

    Login and accounts for Ruby on Rails apps.

    Used byGitLab

  • Expo

    Open source

    Guide

    Framework and cloud builds for React Native apps on iPhone and Android.

  • React Native

    Open source

    Build iPhone and Android apps with React.

    Used byDiscord,Shopify

Data from the open Wappalyzer database (enthec/webappanalyzer, GPL-3.0), updated every week. Site counts from the HTTP Archive (September 2026). Code tools (frameworks, build, ORMs…) come from a list kept by Faundr.