Clerk Billing vs Payflow.dev

Payflow.dev offers a payment API with one-line integration; Clerk Billing adds subscription UI and plan management on top of Stripe.

Side by side

What it is: Clerk Billing:Clerk Billing adds subscription billing to apps with ready-made UI components and no webhook code.; Payflow.dev:Payment API with 1 line of code optimized for startups
Best for: Clerk Billing:Drop-in subscription billing UI; Payflow.dev:Simple payment API
Who it’s for: Clerk Billing:SaaS developers who already use Clerk for authentication.; Payflow.dev:—
Pricing: Clerk Billing:Freemium; Payflow.dev:Subscription
Plans: Clerk Billing:Billing Add-on 0.7% of billing volume; Payflow.dev:—
Works with: Clerk Billing:React, Next.js, Astro, TanStack React Start, Expo, Stripe; Payflow.dev:—
DevHunt upvotes: Clerk Billing:1; Payflow.dev:2
Launched on DevHunt: Clerk Billing:May 2025; Payflow.dev:Dec 2024

Prebuilt pricing UI. Use <PricingTable/> component to display plans and let users subscribe instantly.
Unified user & subscription data. Customer subscription status is stored alongside user data automatically.
Feature gating helpers. Control access with <Show/> component or has() based on plan entitlements.
Stripe integration. Connect a Stripe account and Clerk syncs payments, methods, and transactions.
Free trial support. Offer free trials without extra configuration.
Dev-stage testing. Development instances use Stripe test mode for safe trial of billing flows.

Payment API with 1 line of code optimized for startups

Based on each tool's website and DevHunt data. Details may change; check the official sites.