Best iOS Open Source Software

Fast, zero-copy serialization library for games and services

The fast, private, and independent web browser that puts your security first.

Free, peer-to-peer messaging and calling app with no servers and no personal data required.

An encrypted messenger that runs over standard email servers instead of a proprietary network.

Stateless password manager

No-logs VPN with open-source apps, unlimited connections, and strong torrenting support.

Self-hosted open-source file sync and share platform with high performance.

Free research manager to collect, organize, cite, and share sources.

Open-source media center for all your entertainment needs

Secure CommsOS for mission-critical operations

The most secure hardware wallet for crypto assets

Google's open-source framework for building natively compiled apps for mobile, web, and desktop from one codebase.

Open-source multi-chain crypto wallet with built-in transaction security simulation.

Private messenger with no user IDs, so you own your contacts and groups

A local-first, privacy-focused workspace for notes, docs, and databases you fully own.

Self‑hosted grocery list and recipe manager

No-logs VPN from a 15-year operator that publishes transparency reports and annual security audits.

Open-source Spotify client for every platform

Secure, self-hosted team messaging and collaboration.

Open-source client-side encryption that locks individual files before they sync to any cloud drive.