Gravity vs KMPShip

When choosing between Gravity and KMPShip, it's essential to understand the key differences that make each boilerplate unique. Both are excellent choices for building SaaS applications, but they cater to different needs and development approaches.

What is Gravity?

Gravity is a full‑stack boilerplate for JavaScript/TypeScript projects combining a Node.js backend with a React (or React Native) frontend designed to give developers a head‑start when building SaaS applications. It aims to deliver a working foundation so that you don’t need to assemble all the plumbing (auth, billing, database, UI, API) from scratch. The boilerplate includes support for multiple databases (like Postgres, MySQL, MongoDB, MariaDB and possibly others) which gives flexibility depending on your data/storage preferences. There is also a full “stack” support: server (Node.js + Express/API backend), web client (React + Tailwind or similar), and optionally native mobile clients (via React Native), which helps if you want a unified codebase for web + mobile. Beyond the core stack, Gravity claims to bundle SaaS‑ready features: authentication (email/password, magic links, social logins, 2FA, account security), subscription & billing support (with free plans, trials, seat‑based or usage billing), and a library of UI components & views (dashboard, admin tools, layout components, responsive UI, dark mode, etc.). Gravity also offers a “website/landing page template” (built with a static‑site generator + modern site tooling) useful for marketing, landing pages, pricing pages, etc. — thereby giving you both the “app core” and “public‑facing site” foundation.

Developed by Kyle Gawley, Gravity has become a popular choice among developers looking for a reliable starting point for their SaaS projects.

What is KMPShip?

KMPShip is a production-ready boilerplate built with Kotlin & Compose Multiplatform for Android & iOS. Go from idea to App Store and Google Play in days, and start earning from day one. If you are an indie dev, freelancer, or working on your next client project, KMPShip gives you a solid foundation with everything essential already set up. Forget weeks of configuration and endless troubleshooting. With KMPShip, everything is ready out of the box: - Authentication (Google, Apple, Email/Password) - Payments with RevenueCat (In-App purchases, subscriptions and paywall) - Notifications (local & push) - CI/CD pipelines with GitHub Actions & Fastlane - Clean architecture, offline mode, dark mode - Sample app and documentation - Access to a private Discord community Recognized by leading platforms: KMPShip is already gaining recognition from leading startup communities and developer platforms, trusted by indie makers and freelancers worldwide. Start building apps faster and turn your ideas into income today.

Created by Vivien Mahé, KMPShip offers a robust foundation for building scalable SaaS applications.

When building a SaaS application, choosing the right payment integration is crucial for monetization success. Let's compare the payment options available in Gravity and KMPShip.

Both Gravity and KMPShip are excellent choices for building SaaS applications. Your decision should be based on your specific requirements, budget, and technical preferences.

Gravity is ideal if you're looking for a feature-rich solution with built-in authentication.

KMPShip stands out for its competitive pricing and is perfect for developers who need authentication.

Ultimately, both boilerplates will help you launch your SaaS product faster and more efficiently. Review the detailed comparison above, consider your project requirements, and choose the one that aligns best with your goals.