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.

CI/CDFree tier

CircleCI: Pricing, Features & Alternatives

CircleCI automates the build, test, and deploy process. It offers parallelism, caching, and orbs (reusable config) for faster pipeline execution.

CircleCI Pricing Plans (2026)

Plan	Price	Highlights
FreePopular	Free	6,000 build minutes/month · 30 jobs · 1 user
Performance	From $15/month	80,000+ credits/month · Unlimited users · Parallelism
Scale	Custom	Unlimited credits · Self-hosted runners · Audit logs

Pricing summary: Free · paid from $15/mo. Always confirm current pricing on the official site.

Key CircleCI Features

6,000 build minutes/month
30 jobs
1 user
Docker support
GitHub/Bitbucket integration

Best CircleCI Alternatives

Compare all

GitHub Actions

Free · paid from $4/mo

CircleCI FAQ

What is CircleCI used for?⌄

CircleCI is a ci/cd tool. Cloud-native CI/CD platform for fast, reliable software delivery.

Is CircleCI free?⌄

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

How much does CircleCI cost?⌄

CircleCI offers a free tier, with paid plans starting at $15/month. Some plans are usage-based (pay-as-you-go).

What are the best CircleCI alternatives?⌄

Popular CircleCI alternatives include GitHub Actions. Compare pricing and features on our CircleCI alternatives page.

Not sure if CircleCI fits your stack?

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

Build my stack free