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.

All launches

User Research & Feedbackexportdou.cnJul 23, 2026

ExportDou

Name: App Stack Builder
Availability: InStock

Export public Douyin comments and replies to Excel or CSV

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About

ExportDou is a focused tool for exporting public comments and replies from Douyin videos. Paste a public Douyin video link or the full share text, preview the video and real comments, choose the export size and whether to include replies, then download normalized CSV or Excel data. It is built for content teams, e-commerce operators, agencies, researchers, and developers who need structured comment data for topic discovery, customer feedback analysis, reporting, and downstream workflows. Long-running jobs continue in the background with visible progress, result previews, private downloads, and billing based on the rows actually exported. For automation, ExportDou also provides a Chinese developer center, OpenAPI specification, public Postman Collection, CLI, and Agent Skill. It only processes user-supplied public Douyin links and does not require Douyin login credentials, cookies, or browser extensions. ExportDou is not affiliated with Douyin.