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

AI Toolsbizcard.simon-gpt.comJul 21, 2026

BizCard Go

Name: App Stack Builder
Availability: InStock

Turn business cards into searchable, exportable contacts

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About

BizCard Go is an AI-assisted business-card capture and contact workflow for iPhone and iPad, with an Android closed test also available. It is built for founders, salespeople, consultants, and event attendees who need to turn piles of paper cards into contacts they can verify, search, and export. Scan or upload English and Chinese business cards, review and correct the extracted fields, keep the original card image for reference, search the contact library later, look up LinkedIn profiles, review likely duplicates deliberately, and export the records. The product is intentionally lighter than a CRM, so users can complete the post-meeting workflow without adopting a large sales system. The free tier includes 30 AI scans each month. I am actively looking for practical workflow feedback. The most useful test is to scan or upload three to five fictional or redacted cards, correct any OCR mistakes, find one contact later, and try an export. Please report the card language and layout, fields that were recognized incorrectly, confusing steps, and reproducible failures. Never share private contact data in screenshots.