A web and app developer generally provides the following services:

1. Web Development: Building and maintaining websites, ranging from simple informational sites to complex web applications.

2. Application Development: Creating mobile apps for various platforms, such as iOS (Apple) and Android.

3. Front-End Development: Designing the user interface (UI) of websites and apps to make them visually appealing and user-friendly.

4. Back-End Development: Developing the server-side of web applications where data is processed, stored, and managed.

5. E-commerce Solutions: Developing online stores and payment gateways for e-commerce businesses.

6. Customization and Integration: Customizing and integrating existing systems and software to meet specific needs.

7. Database Management: Setting up and managing databases to efficiently store and retrieve data.

8. Maintenance and Updates: Providing ongoing support, including bug fixes, security updates, and functional enhancements.

9. Consulting and Advice: Offering technical advice and guidance to clients on web and app development strategies.

10. Responsive Design: Ensuring compatibility of websites and apps on various devices and screen sizes.

11. Security and Data Protection: Ensuring data security and protection against security risks.

12. Optimization and Performance Improvement: Enhancing the speed and performance of websites and apps.

The specific services may vary depending on the developer’s specialization and expertise, as well as the client’s needs.