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.

Chargebee vs Paddle: Which is Better in 2026?

Name: App Stack Builder
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Payment Gateway

Choosing between Chargebee and Paddle? 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.

Chargebee is for: SaaS teams with complex subscriptions who want billing, invoicing and revenue recognition on top of their existing gateway.

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

Quick verdict

There’s no single winner; pick on your constraint. Choose Chargebee if you need usage-based or complex subscription billing on top of Stripe or another gateway. Choose Paddle if you sell software globally and don’t want to register for VAT and sales tax.

Chargebee vs Paddle — Side by Side

	Chargebee	Paddle
Category	Payment Gateway	Payment Gateway
What it is	Subscription billing platform	Payments and billing platform
Merchant of record	No	Yes
Online card fee	Billed by your gateway	5% + 50¢, tax handling included
Monthly fee	$0 + 0.80% or $99 + 0.65% of billing	None
Built for	SaaS with complex billing	SaaS and software
Pricing	From $99/mo	Usage-based
Starting price	From $99/mo	Pay-as-you-go
Free tier	—	—
Best for	Payment Gateway — subscription billing, usage billing, RevRec	Payment Gateway — merchant of record, SaaS, global tax

Pros & Cons

Chargebee

Powerful subscription/revenue ops
Starts at $0 plus a share of billing
Integrates with major gateways
Great for complex billing

Not a merchant of record
Overhead for simple use cases

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

Key Features Compared

Chargebee

Billing priced as a share of billing volume: $0 + 0.80%, or $99 a month + 0.65% (break-even shown at $66K)
Includes 100M monthly usage events, 40+ payment gateways, invoicing and usage billing
Growth Starter free for Chargebee Billing customers: pricing tables, hosted checkout, self-serve portal
RevRec Performance and Enterprise priced on request

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

Choose Chargebee if…

You need usage-based or complex subscription billing on top of Stripe or another gateway.
You want invoicing and revenue recognition from one vendor.
You use more than one payment gateway.

Chargebee review & pricing

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

Frequently Asked Questions

Is Chargebee better than Paddle?⌄

What is the difference between Chargebee and Paddle?⌄

What it is — Chargebee: Subscription billing platform. Paddle: Payments and billing platform. Merchant of record — Chargebee: No. Paddle: Yes. Online card fee — Chargebee: Billed by your gateway. Paddle: 5% + 50¢, tax handling included. Monthly fee — Chargebee: $0 + 0.80% or $99 + 0.65% of billing. Paddle: None. Built for — Chargebee: SaaS with complex billing. Paddle: SaaS and software.

Chargebee vs Paddle: which is cheaper?⌄

Chargebee pricing: From $99/mo. Paddle pricing: Usage-based. Confirm current pricing on each tool's official site, as plans change.

When should I skip both Chargebee and Paddle?⌄

Skip Chargebee if you want billing from your payment processor. Stripe Billing is 0.8% of billing volume. Skip Paddle if you want a lower per-transaction rate as a merchant of record. Polar’s paid plans start at 3.8% + 40¢.

Sources · tool facts checked November 2026