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 AssistantFree tier

Google Antigravity: Pricing, Features & Alternatives

Google Antigravity is an AI-first development environment built by Google, released in public preview in November 2025. It features an agent-first architecture where autonomous AI agents can plan, execute, and verify tasks across your editor, terminal, and browser. The free tier includes access to Gemini 3 Pro, Claude Sonnet & Opus 4.5, unlimited tab completions, unlimited command requests, and generous weekly rate limits. Available for Windows, macOS, and Linux.

Google Antigravity Pricing Plans (2026)

Plan	Price	Highlights
IndividualPopular	$0 / month	Access to Gemini 3 Pro & Flash · Access to Claude Sonnet & Opus 4.5 · Access to GPT-OSS-120B
DeveloperPopular	Via Google One	Everything in Individual · More generous rate limits · Integrated with Google AI Pro or Ultra subscription
Team	Via Google Workspace	Everything in Individual · Higher rate limits for teams · Available via Google Workspace AI Ultra for Business
Organization	Coming soon	Enterprise-grade deployment · Organization-wide controls · Scalable usage via Google Cloud

Pricing summary: Free. Always confirm current pricing on the official site.

Key Google Antigravity Features

Access to Gemini 3 Pro & Flash
Access to Claude Sonnet & Opus 4.5
Access to GPT-OSS-120B
Unlimited tab completions
Unlimited command requests
Agent Manager for multi-agent workflows
Browser and terminal integration
Artifacts (screenshots, implementation plans, recordings)

Pros

+Extremely generous free plan
+Access to multiple leading AI models
+Unlimited tab completions
+Deep Google ecosystem integration
+Scales from solo to enterprise

Cons

−Pricing for paid plans is indirect (via Google One/Workspace)
−Enterprise plan not yet available
−Limited transparency on exact rate limits
−Still in public preview - may have bugs and security considerations
−Some users report subscription status sync issues

Best Google Antigravity Alternatives

Compare all

Cursor

Free · paid from $20/mo

GitHub Copilot

Free · paid from $10/mo

Windsurf

Free · paid from $15/mo

Gemini Code Assist

Free · paid from $22.8/mo

Claude Code

From $17/mo

Google Antigravity Compared

Google Antigravity vs Cursor Google Antigravity vs Claude Code Google Antigravity vs GitHub Copilot Google Antigravity vs Windsurf Google Antigravity vs Gemini Code Assist

Google Antigravity FAQ

What is Google Antigravity used for?⌄

Google Antigravity is a ai coding assistant tool. AI-powered agent-first IDE from Google with autonomous AI agents, generous free tier, and multi-model support.

Is Google Antigravity free?⌄

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

How much does Google Antigravity cost?⌄

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

What are the best Google Antigravity alternatives?⌄

Popular Google Antigravity alternatives include Cursor, GitHub Copilot, Windsurf, Gemini Code Assist, Claude Code. Compare pricing and features on our Google Antigravity alternatives page.

Not sure if Google Antigravity fits your stack?

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