VIPER

Lesson in the iOS Roadmap · Stage 15: Reactive Programming

Last updated 14 September 2026

What is VIPER?

VIPER is an architectural pattern that divides app code into five distinct components: View, Interactor, Presenter, Entity, and Router. Each component has a single, clearly defined responsibility, making the codebase highly modular and testable. VIPER is commonly used in large iOS projects where strict separation of concerns is a priority.

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Free resources to learn VIPER

VIPER: common questions

Can I learn VIPER in Hindi?

This lesson is written in English. Once you sign in, open it in the interactive course and ask the AI tutor to explain VIPER in Hindi or Hinglish. The tutor answers from this lesson’s own text, so it stays on the syllabus, and it runs on your own Google, OpenAI or Anthropic key.

Is this VIPER tutorial for beginners?

It is lesson 93 of 170 in the free iOS roadmap, in stage 15, Reactive Programming. If you are new to iOS, start from stage 1 and come back here in order; if you already know the earlier stages, this lesson stands on its own.