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.

Payment Gateway

Stripe: Pricing, Features & Alternatives

Stripe provides APIs and tools for online payments, subscriptions, invoicing, fraud prevention, and financial operations. It supports businesses of all sizes with usage-based pricing and enterprise custom plans.

Stripe Pricing Plans (2026)

Plan	Price	Highlights
StandardPopular	~2.9% + $0.30 (varies by region)	No setup or monthly fees · Cards, UPI, wallets, and bank transfers · Global payments support
Custom	Custom pricing	Volume-based discounts · Multi-product discounts · Country-specific pricing

Pricing summary: Usage-based. Always confirm current pricing on the official site.

Key Stripe Features

No setup or monthly fees
Cards, UPI, wallets, and bank transfers
Global payments support
Fraud prevention (Radar)
Subscriptions & invoices
Developer-friendly APIs

Best Stripe Alternatives

Compare all

Lemon Squeezy

Usage-based

Paddle

Usage-based

PayPal / Braintree

Usage-based

Stripe FAQ

What is Stripe used for?⌄

Stripe is a payment gateway tool. Payments infrastructure for the internet with global card support and developer-friendly APIs.

Is Stripe free?⌄

Stripe does not offer a permanent free tier.

How much does Stripe cost?⌄

Stripe uses usage-based (pay-as-you-go) pricing — see the official pricing page for current rates.

What are the best Stripe alternatives?⌄

Popular Stripe alternatives include Lemon Squeezy, Paddle, PayPal / Braintree. Compare pricing and features on our Stripe alternatives page.

Not sure if Stripe fits your stack?

Get a free, AI-powered tech stack tailored to your budget, app type, and team size — including the best payment gateway pick for you.

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