# Cult UI Pro — Polar Subscription

> Next.js SaaS starter template with Supabase and Polar subscription billing

A Next.js starter template equipped with Supabase authentication, database storage, and Polar payment integration for SaaS subscriptions. It includes ready-made marketing pages and an SEO-optimized MDX blog. Cult UI Pro transitioned to open source, discontinuing new sales while keeping templates available to existing buyers and repository viewers.

Website: https://pro.cult-ui.com/templates/cult-polar-subscription

## What it is for

- Launch a SaaS product with built-in subscription billing using Polar
- Set up Supabase authentication and database storage quickly in a Next.js project
- Publish an SEO-friendly MDX blog for marketing a web app

## Features

- Polar integration for managing payments and subscriptions
- Supabase authentication for user management
- Pre-configured Supabase database setup for user and subscription data
- SEO-optimized MDX blog setup
- Tailwind CSS and shadcn/ui components
- Marketing and landing page layouts

## Pricing

Open source. No longer for sale; project transitioned to open source

## Details

- Type: Website
- Category: [Development](https://xiry.app/topics/development.md)
- Topic: [Boilerplates & Starters](https://xiry.app/topics/development/boilerplates-starters.md)
- Open source: yes
- Platforms: Web, Self-hosted
- For: Next.js developers and indie hackers building subscription-based web apps
- Alternative to: ShipFast, SaaS Pegasus, Makerkit
- Tags: nextjs, supabase, polar, boilerplate, saas, tailwind

## Why it was saved

- [@nolansym, 7 August 2025](https://x.com/nolansym/status/1953477468448342506): A ready-to-use SaaS starter covering auth, database, subscription billing and marketing pages.

## Compare

- [Alternatives to ShipFast](https://xiry.app/alternatives/shipfast.md)

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- [nextjs-sessionauth-template](https://xiry.app/resources/nextjs-sessionauth-template): Next.js starter template featuring Lucia session auth and Stripe billing (GitHub repo, Open source)
- [Steven Tey's Starter Template Stack (Precedent)](https://xiry.app/resources/steven-tey-s-starter-template-stack-precedent): A full-stack Next.js tech stack for fast project prototyping and deployment. (List, Free)
- [Titan](https://xiry.app/resources/titan): Full-stack Next.js 15 starter with Better-Auth, Drizzle, and Tailwind v4 (GitHub repo, Open source)

Updated 10 October 2026. Page: https://xiry.app/resources/cult-ui-pro-polar-subscription

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