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.

Localhost TunnelsFree tier

ngrok: Pricing, Features & Alternatives

ngrok gives a local or private service a public HTTPS URL in one command, with a request inspector and replay that make it the default for testing webhooks and OAuth callbacks. It has grown into a general ingress platform: traffic policies, OAuth and IP restrictions in front of the URL, and an SDK to embed tunnels in your own app. Pricing as of October 2026: Free (3 endpoints, 1 GB transfer, 20K requests, one dev domain, and an interstitial warning page on HTTP), Hobbyist $10/month with no interstitial, and Pay-as-you-go from $20/month plus usage, which adds your own domains at $0.01 per active hour.

ngrok Pricing Plans (2026)

Plan	Price	Highlights
Free	$0	3 endpoints, 1 GB transfer · 20K HTTP requests · Interstitial page on HTTP
HobbyistPopular	$10 / month	5 GB transfer · 10 ngrok-branded domains · No interstitial
Pay-as-you-go	$20 / month + usage	Unlimited endpoints · Bring your own domain · 3 users included

Pricing summary: Free · paid from $10/mo. Always confirm current pricing on the official site.

Key ngrok Features

5 GB transfer
10 ngrok-branded domains
No interstitial

Pros

+One command to a public URL, on every OS
+Request inspector and replay for webhook debugging
+Auth and traffic policy in front of the tunnel

Cons

−Free plan shows an interstitial page and caps requests
−Custom domains need Pay-as-you-go
−Gets expensive for always-on production ingress

Best ngrok Alternatives

Compare all

Cloudflare Tunnel

Free

Pinggy

Free · paid from $3/mo

zrok

Free · paid plans by quote

ngrok Compared

ngrok vs Cloudflare Tunnel ngrok vs Pinggy ngrok vs zrok

ngrok FAQ

What is ngrok used for?⌄

ngrok is a localhost tunnels tool. The best-known way to put a localhost server on a public URL, now a full ingress platform with traffic policy, auth and custom domains.

Is ngrok free?⌄

Yes — ngrok has a free tier you can start with, and paid plans for more usage and features.

How much does ngrok cost?⌄

ngrok offers a free tier, with paid plans starting at $10/month.

What are the best ngrok alternatives?⌄

Popular ngrok alternatives include Cloudflare Tunnel, Pinggy, zrok. Compare pricing and features on our ngrok alternatives page.