- Languages/Technologies: Objective-C, Java, C, JavaScript/TypeScript, Kotlin (beginner), JSON, HTML, CSS.
- Frameworks/Tools: React Native, React, Redux, React Query, React Navigation, React Hooks, Context API, CodePush, i18next (internationalization), socket.io.
- Mobile Services: OneSignal (notifications), Firebase, Parse, Auth0, Twilio, TokBox.
- Third-Party Libraries: Fresco, Bolts, Google Analytics, Google Maps, OkHttp, Picasso, Glide, Fabric.
- IDEs: Xcode, Android Studio, Eclipse, VSCode.
- Version Control: Git (iOS, Android, Web).
- Databases: MySQL, SQLite3.
- Design Tools: Adobe Photoshop, Illustrator, Lightroom, Sketch.
- Content Management: WordPress, Joomla.