Gravity

Gravity helps you launch a SaaS fast with auth, payments, and dashboards ready.

Overview

Gravity provides a production-ready foundation for SaaS apps with authentication, subscription billing, admin dashboards, mobile apps, AI integrations, and UI templates, letting you skip boilerplate code and focus on features that matter.

Key features

Subscription billing with Stripe integration
Multi-dimensional authentication (email, magic links, social, 2FA)
Multi-tenant organizations with user roles
SaaS admin dashboard with metrics and logs
50+ UI components built with Shadcn
Native iOS & Android app templates
REST API with token auth and throttling
Transactional email system with 20+ templates
AI agent rules for Claude, Copilot, Gemini
40+ integration tests included

Pros

Saves 400+ hours of development time
Battle-tested code used by 1,200+ developers
Includes mobile app templates (React Native)
AI-native with built-in agent and IDE rules
Comprehensive documentation and setup wizard
12 months of updates included
Active Discord community support
Clean, well-organized codebase

Cons

Requires Node.js and React knowledge to customize
Limited to JavaScript (not TypeScript)
Custom features and builds available but require contacting founder
Renewal pricing increases after first year ($195-250/yr)

Use this if

You need a production-ready SaaS foundation with auth, billing, and admin tools; you want to save hundreds of development hours; you're building with Node.js and React; you need mobile app templates; you want AI-native integrations.

Skip this if

You need TypeScript support; you prefer open-source free solutions; you're not building with Node.js/React; you need a no-code SaaS builder instead of a code boilerplate.

Best for

Founders building SaaS MVPs quicklyTeams migrating to Node.jsDevelopers wanting production-ready auth and billingStartups seeking to save 400+ development hoursAI-native application development

Alternatives

Open-source SaaS boilerplates (free but less maintained)Wasp (full-stack framework)Firebase + custom frontendSupabase + Next.js starterCustom-built SaaS from scratch

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