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.

AI Coding Assistant

The 5 Best Google Antigravity Alternatives in 2026

Looking for an alternative to Google Antigravity? Below we compare the best ai coding assistant alternatives by pricing, free tiers, and what each is best for — so you can pick the right fit for your budget and stack.

Google Antigravity vs Alternatives — Quick Comparison

Tool	Pricing	Free tier	Best for
Google AntigravityYou searched	Free		AI Coding Assistant — google, antigravity
Cursor	Free · paid from $20/mo		AI Coding Assistant — cursor, ai-editor
GitHub Copilot	Free · paid from $10/mo		AI Coding Assistant — ai, developer-tools
Windsurf	Free · paid from $15/mo		AI Coding Assistant — windsurf, ai
Gemini Code Assist	Free · paid from $22.8/mo		AI Coding Assistant — ai, ide
Claude Code	From $17/mo	—	AI Coding Assistant — ai, claude

Top Google Antigravity Alternatives, Explained

1. Cursor

Free tier· Free · paid from $20/mo

AI-powered code editor with built-in agents, deep model support, and fast local development workflows.

Cursor pricing & review

2. GitHub Copilot

Free tier· Free · paid from $10/mo

AI-powered coding assistant that helps you write, review, and understand code faster directly in your IDE.

GitHub Copilot pricing & review

3. Windsurf

Free tier· Free · paid from $15/mo

AI-powered coding assistant with fast context, multi-model support, and strong collaboration features for individuals and teams.

Windsurf pricing & review

4. Gemini Code Assist

Free tier· Free · paid from $22.8/mo

AI-powered coding assistant by Google that provides code completion, explanations, refactoring, and chat inside IDEs.

Gemini Code Assist pricing & review

5. Claude Code

· From $17/mo

AI coding assistant by Anthropic for writing code, analyzing data, and executing programs across web, desktop, and terminal.

Claude Code pricing & review

Frequently Asked Questions

What are the best alternatives to Google Antigravity in 2026?⌄

The best Google Antigravity alternatives in 2026 are Cursor, GitHub Copilot, Windsurf, Gemini Code Assist, Claude Code. Each is a ai coding assistant option you can compare on pricing, free tiers, and features in the table above.

Is there a free alternative to Google Antigravity?⌄

Yes — Cursor, GitHub Copilot, Windsurf offer free tiers, making them strong free Google Antigravity alternatives for bootstrapped startups.

Why look for a Google Antigravity alternative?⌄

Common reasons include pricing, a specific feature gap, ease of use, or wanting an open-source or free-tier option. Comparing ai coding assistant tools side by side helps you pick the best fit for your stack and budget.

Find your perfect ai coding assistant tool

Skip the research. Get a free AI-powered tech stack matched to your budget, app type, and team size in seconds.

Build my stack free