How to Build Your Own Rain POS
Replace Rain POS with a custom build. Point of Sale Software for Retailers
Build Difficulty: 4/5
A few focused days to build a solid replacement
Estimated Timeline
Based on 66 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
Key Features to Replicate
Top features across 8 categories. See all 66 features
Inventory Management(14 features)
Create and manage product kits and bundles
Manage purchase orders and receiving of inventory
Auto-fill product data with Notions Marketing integration
Manage seasonal inventory changes easily
Track and manage consignment inventory
+9 more in this category
Marketing(9 features)
Send automated email campaigns to customers
Send data-driven marketing messages at the right time
Automated email campaigns based on customer behavior
Manage customer reviews on Facebook and Google
Built-in email marketing campaigns and automation
+4 more in this category
E-Commerce(8 features)
Personalized experiences for online and in-store shopping
Manage and fulfill online orders from integrated website
Get products online with website seamlessly integrated with POS
Customizable widgets for website builder
Thousands of products built-in to get store up and running quickly
+3 more in this category
Business Features(6 features)
Increase class signups with online registration and text reminders
Manage and schedule group classes with registration
Handle class registrations and supply management
Create and manage guided trips and lesson schedules
Create and schedule workshop events
+1 more in this category
Customer Management(5 features)
Build customer profiles based on style preferences
Track customer information and loyalty program data
Create and send customer invoices
Track customer information, purchase history, and preferences
Request customer reviews at point of sale
Core POS(4 features)
Avoid manual errors when entering transactions
Manage multiple store locations from one dashboard
Seamlessly integrated point of sale system with e-commerce website
Unlimited number of user accounts and product listings
Integrations(4 features)
Automated tax calculation and compliance
Sync data with QuickBooks accounting software
Sync with Shopify e-commerce platform
Streamlined ordering process using Notions Marketing
Reporting(4 features)
Essential reporting and business intelligence features
Create custom reports for business analytics
Improve business intelligence with marketing results, inventory turn, and top customers
Easy-to-understand yet comprehensive business reporting
Cost Calculator
Keep Paying Rain POS
Build It Yourself
Total Cost Comparison
DIY hosting estimate based on Vercel + Supabase free/pro tiers (~$20/mo). Build time estimated from 66 features at easy complexity.