Detailed Comparison 2025

Modern Mern vs SaaS UI

Compare Modern Mern and SaaS UI side-by-side. We've analyzed features, pricing, and capabilities to help you choose the best boilerplate for your SaaS project.

Quick Overview

Modern Mern screenshot

Modern Mern

Modern MERN is a full‑stack boilerplate for building SaaS‑style web applications, combining a JavaScript/TypeScript‑based backend with a modern React frontend. Under the hood it uses a MERN‑derived stack (MongoDB, Express/Node.js, React), augmented with modern tooling like Next.js, TypeScript, Tailwind CSS, and Prisma plus optional serverless deployment on AWS.

$699
by Remi Wg
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Key Features

AuthenticationStripeAdmin PanelDashboardSubscriptions
Best Value
SaaS UI screenshot

SaaS UI

Saas UI is a premium starter kit / boilerplate built on Next.js (with React + TypeScript) designed specifically for building SaaS and B2B web applications quickly and with solid structure. It pairs a rich UI/design system with the backend scaffold and common SaaS plumbing so you don’t have to build everything from scratch. Right away you get a full-featured component library and design system prebuilt UI components, themes, responsiveness, dark/light mode support all optimized for building dashboards, admin panels, web apps or SaaS products. On the functionality side, Saas UI ships with support for user authentication (login/signup, social login options, account management), workspace/team/organization support (workspaces, team invites, role-based access), subscription & billing flows with Stripe (subscription plans, per‑seat or team‑based billing, metered usage and entitlement management), and built‑in support for multi-tenancy / per‑workspace billing/perms. The stack includes a modern backend API layer (via tRPC), a database setup that works with PostgreSQL (and other options), and a dev environment optimized for productivity (TypeScript, Turborepo/monorepo friendly configuration, sensible defaults for linting/formatting).

$249
by Eelco Wiersma
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Key Features

AuthenticationAdmin PanelDashboardSubscriptions

Feature-by-Feature Comparison

Feature
Modern Mern$699
SaaS UI$249
Price$699$249
DeveloperRemi WgEelco Wiersma
Authentication
Stripe Integration
Paddle Integration
Lemon Squeezy
Dodo Payments
Polar
Creem
Admin Panel
User Dashboard
Subscriptions
Blog
SEO Optimized
Documentation
Support
Tailwind CSS
API
Two-Factor Auth
Multi-Tenancy
Teams
Shadcn UI
View DetailsView PageView Page

Modern Mern vs SaaS UI: Detailed Analysis

When choosing between Modern Mern and SaaS UI, 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 Modern Mern?

Modern MERN is a full‑stack boilerplate for building SaaS‑style web applications, combining a JavaScript/TypeScript‑based backend with a modern React frontend. Under the hood it uses a MERN‑derived stack (MongoDB, Express/Node.js, React), augmented with modern tooling like Next.js, TypeScript, Tailwind CSS, and Prisma plus optional serverless deployment on AWS.

Developed by Remi Wg, Modern Mern has become a popular choice among developers looking for a reliable starting point for their SaaS projects.

What is SaaS UI?

Saas UI is a premium starter kit / boilerplate built on Next.js (with React + TypeScript) designed specifically for building SaaS and B2B web applications quickly and with solid structure. It pairs a rich UI/design system with the backend scaffold and common SaaS plumbing so you don’t have to build everything from scratch. Right away you get a full-featured component library and design system prebuilt UI components, themes, responsiveness, dark/light mode support all optimized for building dashboards, admin panels, web apps or SaaS products. On the functionality side, Saas UI ships with support for user authentication (login/signup, social login options, account management), workspace/team/organization support (workspaces, team invites, role-based access), subscription & billing flows with Stripe (subscription plans, per‑seat or team‑based billing, metered usage and entitlement management), and built‑in support for multi-tenancy / per‑workspace billing/perms. The stack includes a modern backend API layer (via tRPC), a database setup that works with PostgreSQL (and other options), and a dev environment optimized for productivity (TypeScript, Turborepo/monorepo friendly configuration, sensible defaults for linting/formatting).

Created by Eelco Wiersma, SaaS UI offers a robust foundation for building scalable SaaS applications.

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Payment Integration: Modern Mern vs SaaS UI

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

Modern Mern Payment Options

Modern Mern supports Stripe.

SaaS UI Payment Options

SaaS UI integrates with Lemon Squeezy. With Merchant of Record support, you can focus on building your product while the payment provider handles tax compliance, invoicing, and regulatory requirements across different countries.

Key Differences Between Modern Mern and SaaS UI

💰 Pricing

Modern Mern is priced at $699, while SaaS UI costs $249. SaaS UI offers better value at a lower price point, saving you 450 dollars.

⚡ Features & Capabilities

Both boilerplates include authentication systems, making it easy to implement user login and registration.

Payment processing is available in both options. Modern Mern supports Stripe, while SaaS UI integrates with Lemon Squeezy.

Both include admin panels for managing your application.

🎯 Best Use Cases

Modern Mern

  • • SaaS startups looking for quick deployment
  • • Projects requiring authentication
  • • Teams with flexible budgets
  • • Multi-tenant applications

SaaS UI

  • • SaaS applications needing rapid development
  • • Projects requiring authentication
  • • Teams with flexible budgets

When to Choose Modern Mern vs SaaS UI

Choose Modern Mern if:

  • You're building a multi-tenant SaaS application
  • You want to start with Modern Mern's specific tech stack and approach
  • Your project aligns with Modern Mern's feature set

Choose SaaS UI if:

  • You're looking for the most cost-effective solution
  • You prefer SaaS UI's specific approach and features
  • Your requirements match SaaS UI's capabilities

Final Verdict: Modern Mern vs SaaS UI

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

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

SaaS UI 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.

Frequently Asked Questions: Modern Mern vs SaaS UI

Which is better: Modern Mern or SaaS UI?

The "better" choice depends on your specific needs. Modern Mern excels in comprehensive features, while SaaS UIstands out for value pricing. Consider your budget, required features, and development timeline when making your decision.

What's the price difference between Modern Mern and SaaS UI?

Modern Mern costs $699 while SaaS UI is priced at $249. That's a difference of $450. Both are one-time payments with no recurring fees, making them cost-effective long-term investments for your SaaS project.

Can I switch from Modern Mern to SaaS UI later?

While technically possible, switching boilerplates mid-project is challenging and time-consuming. Each boilerplate has its own architecture, dependencies, and patterns. It's best to carefully evaluate both options now and choose the one that best fits your long-term needs to avoid costly migrations later.

Do Modern Mern and SaaS UI offer similar features?

Both boilerplates offer core SaaS features, but with different implementations and additional capabilities. Check the detailed feature comparison table above to see exactly which features each boilerplate includes. Key differences include payment integrations, authentication systems, and admin panel availability.

Which boilerplate is better for beginners?

For beginners, consider factors like documentation quality, community support, and code complexity. Both Modern Mern and SaaS UI are designed to be developer-friendly, but your choice should depend on your familiarity with their respective tech stacks and the learning resources available.

Are there any hidden costs with Modern Mern or SaaS UI?

Both boilerplates are one-time purchases with no recurring licensing fees. However, you may incur costs for third-party services they integrate with (like payment processors, email services, or hosting platforms). These operational costs are separate from the boilerplate purchase and apply to any SaaS application.

How long does it take to launch with Modern Mern vs SaaS UI?

Both boilerplates significantly reduce development time compared to building from scratch. Depending on your customization needs, you could launch a basic SaaS product in days or weeks rather than months. The exact timeline depends on your specific requirements, team size, and development experience.

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