Single Language Apps

Single Language Apps refer to software applications developed primarily or exclusively using one programming language throughout the entire codebase, including frontend, backend, and any other components. This approach contrasts with polyglot programming, where multiple languages are used for different parts of an application. It simplifies development by reducing complexity, tooling overhead, and the need for cross-language integration.

Also known as: Monolingual Apps, Single-Stack Apps, Unified Language Apps, One-Language Apps, Homogeneous Language Apps

Why learn Single Language Apps?

Developers should consider Single Language Apps when building small to medium-sized projects, prototypes, or when team expertise is limited to one language, as it streamlines hiring, training, and maintenance. It is particularly useful for startups, educational tools, or applications where rapid development and consistency are prioritized over leveraging specialized languages for specific tasks like data processing or UI rendering.

Learning Resources

• docs: The Art of Monoglot Programming
• tutorial: Single Language vs. Polyglot: Choosing the Right Approach
• video: Building Full-Stack Apps with a Single Language
• book: Software Architecture Patterns: Monolithic vs. Polyglot