Last updated: 2026-02-17

Open Source

Pitchit is an ear-training game for iOS. Hear a tone, pick the matching note, and sharpen your musical ear one round at a time.

This app would not exist without open source. A lot of hard problems are already solved by people who share great tools and ideas, and this page is our thank-you note to them.

Swift Stack

Point-Free

The Composable Architecture State management, side effects, and feature composition in a way that stays testable as the app grows.

swift-dependencies Dependency injection with first-class support for previews and tests.

swift-sharing A simple way to persist and share values across the app.

sqlite-data SQLite-based persistence, query observation, and iCloud sync support.

xctest-dynamic-overlay Useful testing helpers that can run outside XCTest contexts.

Others

SwiftLint by Realm Keeps style and conventions consistent across the codebase.

This Landing Page

This landing page started as a fork of Automatic App Landing Page by Emil Baehr. We adapted it for Pitchit and added multilingual support.

Thank You

Building an indie app as a solo developer is much easier because of the open-source community. If these libraries help your work too, please consider supporting their maintainers.