NextJet vs ShipFlutter

When choosing between NextJet and ShipFlutter, 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 NextJet?

NextJet is a full‑stack SaaS boilerplate built with Next.js, TypeScript and modern web‑app tooling, made to give developers a solid, production‑ready foundation when building subscription‑based or SaaS‑style applications. Out of the box it handles core infrastructure: user authentication + authorization (including OAuth and magic‑link support), payment/subscription logic via Stripe or Lemon Squeezy, and pre‑built user dashboards + admin panel. It also includes content‑management and marketing‑side features: a blog and documentation system using MDX, a customizable landing/marketing site, email templates, and onboarding flows. The project follows a modular, maintainable architecture (monorepo via Turborepo, clean folder structure, typesafety via TypeScript), which helps keep code organized, useful if you plan to grow or scale the app over time. Because much of the “plumbing” is already configured, you can skip repetitive setup and get to building your product‑specific logic faster. At the same time, using NextJet means trusting its built‑in architecture, tech stack and conventions. If your project needs a very different stack, unusual backend/data requirements or a minimal footprint, you might need to refactor or drop parts of what comes with the boilerplate.

Developed by Renas Hassan, NextJet has become a popular choice among developers looking for a reliable starting point for their SaaS projects.

What is ShipFlutter?

ShipFlutter is a cross‑platform starter kit built on Flutter (with Dart), intended to help developers ship Android, iOS and web apps from a single codebase without starting from scratch. It combines frontend UI, backend setup, and common infrastructure so you can launch mobile + web apps faster. ShipFlutter delivers a fully customizable app scaffold including: authentication (email/password, social login, anonymous auth), responsive cross‑platform UI with theming and localization, navigation via GoRouter, state management via Signals, and Material styling. On the backend it offers integration with Firebase (Firestore, Functions, hosting, realtime updates) and optional AI/ML capabilities via Vertex AI useful if you plan AI‑powered features. For monetization or SaaS‑style apps, it supports payments: mobile IAP/subscriptions via RevenueCat and web payments via Lemon Squeezy. It also includes support for notifications, analytics/monitoring, feedback, offline‑ready data handling, and optional templates (for example UI templates, landing‑page/marketing‑page templates, even Tinder‑style or chatbot‑style UIs) enabling you to ship full‑featured apps quickly.

Created by Marcel, ShipFlutter 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 NextJet and ShipFlutter.

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

NextJet is ideal if you're looking for a more affordable option with built-in authentication.

ShipFlutter stands out for its comprehensive feature set and is perfect for developers who need specific features.

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.