Vue.js is an open-source framework, but building a Vue.js application requires an experienced development team.
The cost depends on project scope, delivery time, team size, application complexity, design requirements, integrations and level of customisation. A simple interface or single-page application will have a different budget from a larger Vue.js platform connected with APIs, authentication, dashboards, payment systems, reporting tools and internal workflows.
Fixed price works when the scope is clearly defined. Time and materials gives more flexibility when requirements may change during development.
A reliable estimate starts with understanding your users, product goals, application structure, integrations and technical requirements.