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

zrok: Pricing, Features & Alternatives

zrok shares a local web server, files or TCP/UDP service either publicly through a URL or privately, so only other zrok users you allow can reach it, with no URL on the internet at all. It is built on OpenZiti, NetFoundry’s open-source zero-trust overlay, and is Apache-2.0 licensed and actively maintained. The hosted service at zrok.io is free with 5 GB of bandwidth a day, 25 environments and 50 shares; commercial plans are by quote from NetFoundry. Self-hosting removes every limit, at the cost of running an OpenZiti network.

zrok Pricing Plans (2026)

Plan	Price	Highlights
Self-hosted	$0 (Apache-2.0)	No limits · Runs on OpenZiti
Free (hosted)Popular	$0	5 GB bandwidth / day · 25 environments, 50 shares
Commercial	Custom	SLAs and dedicated infrastructure · From NetFoundry

Pricing summary: Free · paid plans by quote. Always confirm current pricing on the official site.

Key zrok Features

5 GB bandwidth / day
25 environments, 50 shares

Pros

+Apache-2.0 and self-hostable with no limits
+Private shares with no public URL at all
+Generous free hosted tier

Cons

−Self-hosting means running an OpenZiti network
−Smaller community than ngrok or Cloudflare
−No published self-serve paid plan

Best zrok Alternatives

Compare all

Cloudflare Tunnel

Free

ngrok

Free · paid from $10/mo

Pinggy

Free · paid from $3/mo

zrok Compared

zrok vs Cloudflare Tunnel zrok vs ngrok zrok vs Pinggy

zrok FAQ

What is zrok used for?⌄

zrok is a localhost tunnels tool. Open-source (Apache-2.0) sharing and tunnelling built on OpenZiti zero trust. Use the free hosted service or self-host with no limits.

Is zrok free?⌄

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

How much does zrok cost?⌄

zrok is free to use, with usage-based pricing on some features.

What are the best zrok alternatives?⌄

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