---
title: "Free for open source"
description: "Open-source projects use MainSDK free forever. The rule is one paragraph and needs no application."
section: "community"
status: "Planned for 0.5"
spec: "community-launch"
canonical: "https://mainsdk.dev/docs/community/open-source"
updated: "2026-10-28"
---

# Free for open source

> Open-source projects use MainSDK free forever. The rule is one paragraph and needs no application.

Status: Planned for 0.5 · Canonical: https://mainsdk.dev/docs/community/open-source · Updated: 2026-10-28

Everything that runs inside your app is Apache-2.0 and free. Open-source projects also get any paid service MainSDK offers free forever.

**Eligibility.** An open-source project gets MainSDK free forever when its repository is public, its licence is approved by the Open Source Initiative, and it is not run for profit by a company. You write one line in your README that says you use MainSDK. There is nothing to apply for and no limit on users.

See also [pricing](pricing.md).