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.

Lemon Squeezy vs Paddle: Which is Better in 2026?

Name: App Stack Builder
Availability: InStock

Payment Gateway

Choosing between Lemon Squeezy 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.

Lemon Squeezy is for: Creators and small software sellers already on Lemon Squeezy, now that Stripe is moving users to Stripe Managed Payments.

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 Lemon Squeezy if you already sell on Lemon Squeezy and it covers your needs. Choose Paddle if you sell software globally and don’t want to register for VAT and sales tax.

Lemon Squeezy vs Paddle — Side by Side

	Lemon Squeezy	Paddle
Category	Payment Gateway	Payment Gateway
What it is	Merchant of record for digital products	Payments and billing platform
Merchant of record	Yes	Yes
Online card fee	5% + 50¢, plus some extra fees	5% + 50¢, tax handling included
Monthly fee	None	None
Built for	Digital products and software	SaaS and software
Pricing	Usage-based	Usage-based
Starting price	Pay-as-you-go	Pay-as-you-go
Free tier	—	—
Best for	Payment Gateway — digital products, merchant of record, migrating to Stripe	Payment Gateway — merchant of record, SaaS, global tax

Pros & Cons

Lemon Squeezy

Merchant of record for digital products
Store, subscriptions and affiliates included
No monthly fee

Stripe is moving users to Stripe Managed Payments
Some international payments carry extra fees
5% + 50¢ per sale

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

Lemon Squeezy

5% + 50¢ per transaction, no monthly fee; some international and edge-case payments carry small extra fees
Lemon Squeezy is the merchant of record; sales are made through Link, LLC (formerly Lemon Squeezy LLC)
2026 update: Stripe aims to give Lemon Squeezy users an easy migration to Stripe Managed Payments
Subscriptions, abandoned-cart emails and affiliates included; up to 21 payment methods including PayPal

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 Lemon Squeezy if…

You already sell on Lemon Squeezy and it covers your needs.
You sell digital products and want a store, affiliates and tax handling together.

Lemon Squeezy 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 Lemon Squeezy better than Paddle?⌄

What is the difference between Lemon Squeezy and Paddle?⌄

What it is — Lemon Squeezy: Merchant of record for digital products. Paddle: Payments and billing platform. Online card fee — Lemon Squeezy: 5% + 50¢, plus some extra fees. Paddle: 5% + 50¢, tax handling included. Built for — Lemon Squeezy: Digital products and software. Paddle: SaaS and software.

Lemon Squeezy vs Paddle: which is cheaper?⌄

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

When should I skip both Lemon Squeezy and Paddle?⌄

Skip Lemon Squeezy if you are starting today. Stripe Managed Payments is the stated direction for Lemon Squeezy users. 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