What is App Stack Builder?

App Stack Builder is a free AI-powered tool that helps founders and developers choose the right tech stack for their projects based on budget, app type, team size, and skill level.

What is the best tech stack for SaaS in 2026?

The best tech stack for SaaS in 2026 typically includes Next.js 16 for frontend, Supabase for database and auth, Vercel for hosting, Stripe for payments, and PostHog for analytics. App Stack Builder can generate a personalized recommendation based on your specific budget and requirements.

Is App Stack Builder free to use?

Yes, App Stack Builder is completely free to use. You can generate unlimited tech stack recommendations without any cost.

What types of apps can I build with the recommended stacks?

App Stack Builder supports various app types including SaaS applications, web apps, mobile apps, e-commerce stores, internal tools, and AI/ML products.

How much does a SaaS tech stack cost per month?

A modern SaaS tech stack can cost anywhere from $0-50/month for bootstrapped startups using free tiers, $100-300/month for growth-stage startups, to $500+/month for enterprise-ready infrastructure. App Stack Builder helps you find the best tools within your specific budget.

What is the best tech stack for solo founders?

For solo founders, we recommend Next.js + Vercel (free), Supabase (free tier), Supabase Auth (free), Stripe (pay as you go), and Plausible or PostHog for analytics. This stack can run your entire SaaS for under $50/month.

Can I export my tech stack recommendations?

Yes, you can export your tech stack recommendations as a PDF document or copy them to your clipboard. You can also share a link to your stack with others.

Paddle vs Razorpay: Which is Better in 2026?

Name: App Stack Builder
Availability: InStock

Payment Gateway

Choosing between Paddle and Razorpay? Both are popular payment gateway tools. Below we compare them on pricing, free tiers, features, and pros & cons so you can pick the right fit for your stack.

Paddle is for: SaaS and software companies who want a merchant of record to handle sales tax, VAT, fraud and buyer support.

Razorpay is for: Businesses selling to customers in India who need UPI, cards, netbanking, wallets and EMI in one gateway.

Quick verdict

There’s no single winner; pick on your constraint. Choose Paddle if you sell software globally and don’t want to register for VAT and sales tax. Choose Razorpay if your customers mostly pay in India.

Paddle vs Razorpay — Side by Side

	Paddle	Razorpay
Category	Payment Gateway	Payment Gateway
What it is	Payments and billing platform	Payment gateway
Merchant of record	Yes	No
Online card fee	5% + 50¢, tax handling included	2% platform fee (India) + 18% GST
Monthly fee	None	None
Built for	SaaS and software	Businesses selling in India
Pricing	Usage-based	Usage-based
Starting price	Pay-as-you-go	Pay-as-you-go
Free tier	—	—
Best for	Payment Gateway — merchant of record, SaaS, global tax	Payment Gateway — India, UPI, payment gateway

Pros & Cons

Paddle

Merchant of record: collects and files sales tax for you
Fraud, chargebacks and buyer support included
No monthly or migration fees

5% + 50¢ costs more per sale than a plain gateway
Products under $10 need custom pricing
Custom rates only through sales

Razorpay

Built for UPI and Indian payment methods
No monthly fee
Rich payment methods
Good developer docs

Gateway, not merchant of record
India-focused
You handle tax compliance

Key Features Compared

Paddle

Pay-as-you-go: 5% + 50¢ per checkout transaction
Merchant of record: collects the right tax rate and files sales tax returns for you
Payments, checkout, subscriptions and billing in one platform; fraud, chargebacks and buyer support included
No monthly, migration or hidden fees; no lock-in period
Custom pricing for high volume; contact Paddle for products under $10

Razorpay

Standard: 2% platform fee across domestic methods, including UPI, RuPay, cards, netbanking and wallets
Corporate cards 2.15%; international cards up to 3%; international bank transfers 1%
GST of 18% applies to the platform fee
No setup fee, annual maintenance charge or refund fee

Choose Paddle if…

You sell software globally and don’t want to register for VAT and sales tax.
You want chargebacks and buyer support handled for you.
You want subscriptions and checkout from the same vendor.

Paddle review & pricing

Choose Razorpay if…

Your customers mostly pay in India.
You need UPI, netbanking and EMI as well as cards.
You want one flat platform fee across domestic methods.

Razorpay review & pricing

Frequently Asked Questions

Is Paddle better than Razorpay?⌄

What is the difference between Paddle and Razorpay?⌄

What it is — Paddle: Payments and billing platform. Razorpay: Payment gateway. Merchant of record — Paddle: Yes. Razorpay: No. Online card fee — Paddle: 5% + 50¢, tax handling included. Razorpay: 2% platform fee (India) + 18% GST. Built for — Paddle: SaaS and software. Razorpay: Businesses selling in India.

Paddle vs Razorpay: which is cheaper?⌄

Paddle pricing: Usage-based. Razorpay pricing: Usage-based. Confirm current pricing on each tool's official site, as plans change.

When should I skip both Paddle and Razorpay?⌄

Skip Paddle if you want a lower per-transaction rate as a merchant of record. Polar’s paid plans start at 3.8% + 40¢. Skip Razorpay if you sell mostly outside India. Stripe and Paddle are built for global card payments.

Sources · tool facts checked November 2026