I offer creation and rapid deployment of web and mobile applications to test hypotheses or create a minimal version of a product.
In my work I use such frameworks as Bubble, WeWeb, Adalo.
I develop both backend logic and frontend and interactivity elements.
The application can have adaptive layout for different screens. It can be integrated with various external systems, including geocoding and payment acceptance.
You can also discuss the design of the app if there is no ready-made solution.