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.

AnalyticsFree tier

PostHog: Pricing, Features & Alternatives

PostHog is an open-source product analytics suite that helps teams understand user behavior with event tracking, funnels, session replays, and feature flags.

PostHog Pricing Plans (2026)

Plan	Price	Highlights
FreePopular	Free	Up to 1M events per month · Event-based analytics · Funnels & trends
Paid	Usage-based pricing	Unlimited events · Advanced retention analysis · Longer data retention

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

Key PostHog Features

Up to 1M events per month
Event-based analytics
Funnels & trends
Session replay
Feature flags

Best PostHog Alternatives

Compare all

Amplitude

Free

Firebase Analytics

Free

Google Analytics

Free

Mixpanel

Free

AppsFlyer

Usage-based

Plausible

From $9/mo

PostHog FAQ

What is PostHog used for?⌄

PostHog is a analytics tool. Product analytics platform with event tracking, feature flags, and session replay.

Is PostHog free?⌄

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

How much does PostHog cost?⌄

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

What are the best PostHog alternatives?⌄

Popular PostHog alternatives include Amplitude, Firebase Analytics, Google Analytics, Mixpanel, AppsFlyer. Compare pricing and features on our PostHog alternatives page.

Not sure if PostHog fits your stack?

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