SimpMusic started in April 2023 as a personal side project. The goal was simple: build a clean, lightweight music player that respects the user, runs on Android first, and grows naturally with feedback from real listeners.

Over the following months, the project gathered an active community of testers, translators, and contributors from multiple countries. What began as a single Android app expanded into a desktop release for Windows, macOS, and Linux, sharing the same Kotlin codebase through Compose Multiplatform.

Today SimpMusic is maintained as a public, GPL-3.0 project on GitHub. Every release, every bug fix, and every translation lives in the open and is shaped by the people who use it.

SimpMusic is written in Kotlin and uses Compose Multiplatform for the user interface. The same codebase is shared between Android and the Desktop targets, which keeps the app consistent across platforms and makes it possible to ship new features everywhere at once.

The architecture follows a clean, modular structure with a clear separation between presentation, domain, and data layers. This makes it easier for new contributors to find their way around the code and for the maintainer to evolve the project safely over time.

The website you are reading now is built with Next.js, React, Tailwind CSS, and NextUI. Blog content is stored in Appwrite, analytics are handled by Google Analytics, and crash monitoring uses Sentry. Hosting is generously provided by Vercel.

SimpMusic is 100% open-source under the GPL-3.0 license. Every line of code is public, auditable, and open to contribution. We believe great software should be transparent, accessible, and built together.

No tracking. No premium tiers. No hidden fees. Just a music app that respects your privacy and your freedom.