How to Build Your Own FastSpring
Replace FastSpring with a custom build. Global ecommerce platform for software, SaaS, and digital products
Build Difficulty: 4/5
A few focused days to build a solid replacement
Estimated Timeline
Based on 42 features at Few Days difficulty, expect about 3-5 days with AI-assisted development.
Recommended Tech Stack
Full-stack React framework with API routes and server components
PostgreSQL database, auth, and real-time subscriptions
Utility-first styling for rapid UI development
Payment processing, subscriptions, and invoicing
Key Features to Replicate
Top features across 8 categories. See all 42 features
Billing(6 features)
Automatically retry failed payments and reduce churn with intelligent dunning workflows.
Automatically calculate prorated charges for mid-cycle upgrades and downgrades.
Support multiple billing frequencies, seat-based pricing, and usage-based billing models.
Manage recurring billing, free trials, discounts, and subscription lifecycle management automatically.
Configure free trials with flexible terms and automatic conversion to paid plans.
+1 more in this category
Analytics(5 features)
Generate custom reports on revenue, customers, churn, and business metrics.
Track revenue, customer metrics, conversion rates, and business performance in real-time.
AI-powered identification of at-risk customers before they cancel.
Analyze customer groups by acquisition date to understand lifetime value and retention patterns.
Track NRR, MRR, ARR, and other key SaaS metrics automatically.
Marketing(4 features)
Run a managed affiliate program with commission tracking and automated payouts.
Create, distribute, and track discount codes with flexible rules and usage limits.
Create limited-time offers and scheduled promotions with automatic activation.
Offer tiered pricing based on quantity with automatic discount application.
Checkout(3 features)
Fully responsive checkout experience optimized for mobile devices.
Customizable shopping cart with one-click checkout and guest purchase options.
Allow customers to checkout using Apple, Google, Facebook, and Microsoft accounts.
Compliance(3 features)
Full compliance with GDPR, PSD2, and other EU regulatory requirements.
Restrict sales to specific countries based on regulatory or business requirements.
Automatically calculate and manage sales tax, VAT, and GST across jurisdictions worldwide.
Product Management(3 features)
Generate, manage, and validate product licenses with activation and expiration controls.
Create and sell product bundles with custom pricing and volume discounts.
Manage per-user licensing with seat provisioning and user count controls.
Security(3 features)
Reduce chargeback risk with verification tools and dispute management support.
Built-in fraud prevention tools protect against chargebacks and fraudulent transactions.
PCI DSS Level 1 certified platform eliminates payment security burden from merchants.
Administration(2 features)
Perform bulk customer updates, license generation, and data imports via CSV.
Manage team members with role-based access control and permission levels.
Cost Calculator
Keep Paying FastSpring
Build It Yourself
Total Cost Comparison
DIY hosting estimate based on Vercel + Supabase free/pro tiers (~$20/mo). Build time estimated from 42 features at easy complexity.