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.

DatabaseFree tier

Convex: Pricing, Features & Alternatives

Convex is a modern backend platform that combines a real-time database, serverless functions, cron jobs, file storage, search, and AI-assisted app generation. It is designed for fast iteration and scalability, with strong TypeScript-first ergonomics and deep integration with modern frontend frameworks.

Convex Pricing Plans (2026)

Plan	Price	Highlights
Free & StarterPopular	$0 / month (pay as you go)	1–6 developers · 40 deployments · Chef AI app generation
Professional	$25 / developer / month	Unlimited developers · 120 deployments · Everything in Free & Starter

Pricing summary: Free · paid from $25/mo. Always confirm current pricing on the official site.

Key Convex Features

1–6 developers
40 deployments
Chef AI app generation
Real-time database with indexes
Text search and vector search
File storage
Webhooks and cron jobs
Authentication

Pros

+Excellent real-time data model
+Very fast developer iteration
+TypeScript-first backend
+Built-in cron, auth, and storage
+AI-assisted app generation
+Scales cleanly from prototype to production

Cons

−Pricing is per-developer at scale
−Less control than self-managed databases
−Ecosystem smaller than traditional databases

Best Convex Alternatives

Compare all

Redis

Free

Supabase

Free · paid from $25/mo

MongoDB Atlas

Free · paid from $30/mo

Neon

Free

Appwrite

Free · paid from $25/mo

AWS RDS (PostgreSQL)

Usage-based

Convex Compared

Convex vs AWS RDS (PostgreSQL)Convex vs Redis Convex vs GCP Cloud SQL (PostgreSQL)Convex vs Azure Database for PostgreSQL Convex vs Supabase Convex vs MongoDB Atlas

Convex FAQ

What is Convex used for?⌄

Convex is a database tool. Reactive backend-as-a-service with a built-in database, real-time queries, serverless functions, and AI-powered app generation.

Is Convex free?⌄

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

How much does Convex cost?⌄

Convex offers a free tier, with paid plans starting at $25/month.

What are the best Convex alternatives?⌄

Popular Convex alternatives include Redis, Supabase, MongoDB Atlas, Neon, Appwrite. Compare pricing and features on our Convex alternatives page.

Not sure if Convex fits your stack?

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

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