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.

Plausible vs PostHog: Which is Better in 2026?

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Analytics

Choosing between Plausible and PostHog? Both are popular analytics tools. Below we compare them on pricing, free tiers, features, and pros & cons so you can pick the right fit for your stack.

Plausible is for: Site owners who want a simple, cookie-free traffic dashboard on a small monthly plan, or a self-hosted version.

PostHog is for: Product teams who want analytics, session replay, feature flags, experiments and error tracking in one tool with a free monthly allowance.

Quick verdict

There’s no single winner; pick on your constraint. Choose Plausible if you want a one-page traffic dashboard rather than event-level product analytics. Choose PostHog if you want product analytics, session replay and feature flags without stitching three tools together.

Plausible vs PostHog — Side by Side

	Plausible	PostHog
Category	Analytics	Analytics
What it is	Privacy-friendly web analytics	Product analytics suite
What it measures	Website traffic, goals and funnels	Product events, replays, flags, errors
Self-hosting	Yes, Community Edition (AGPL)	Hobby deploy (about 100K events a month)
How you pay	Monthly plan by pageview volume	Free allowance, then per-product usage
Free access	30-day trial; free self-hosted edition	1M events and 5K recordings a month
Pricing	From $9/mo	Free · then usage-based
Starting price	From $9/mo	Free tier available
Free tier	—
Best for	Analytics — privacy-friendly, simple dashboard, open source	Analytics — product analytics, session replay, feature flags

Pros & Cons

Plausible

Cookie-free, one-page dashboard
Free self-hosted Community Edition (AGPL)
Imports Google Analytics history

No free hosted plan (30-day trial)
Funnels and revenue attribution start on Business
No session replay or feature flags

PostHog

Free monthly allowance: 1M events and 5,000 recordings
Analytics, replay, flags and error tracking in one tool
Billing limit per product

Usage is billed separately for each product
Self-hosted hobby deploy suits about 100,000 events a month
Free plan keeps 1 year of data and 1 project

Key Features Compared

Plausible

Starter $9 a month for up to 10,000 monthly pageviews and 1 site
Growth $14 a month: up to 3 sites and 3 team members, shared links and embedded dashboards
Business $19 a month: up to 10 sites, funnels, ecommerce revenue attribution and the Stats API (600 requests an hour)
Prices rise with pageview volume; yearly billing gives 2 months free
30-day free trial, no credit card
Community Edition: free, self-hosted, AGPL-licensed

PostHog

Free every month: 1M analytics events, 5,000 session recordings, 1M feature flag requests
Also free monthly: 100,000 error-tracking exceptions and 1,500 survey responses
Usage above the free allowance is billed per product, with a billing limit per product
Paid plans keep events 7 years (1 year on free) and allow 6 projects (1 on free)
Open source under MIT, except the ee directory; self-hosted hobby deployments suit about 100,000 events a month

Choose Plausible if…

You want a one-page traffic dashboard rather than event-level product analytics.
You want to self-host later with the same product.
You want to import your Google Analytics history.

Plausible review & pricing

Choose PostHog if…

You want to start free — PostHog has a free tier and Plausible does not.
You want product analytics, session replay and feature flags without stitching three tools together.
You want a free tier that resets monthly, with or without a card on file.
You want to cap spend per product with billing limits.

PostHog review & pricing

Frequently Asked Questions

Is Plausible better than PostHog?⌄

What is the difference between Plausible and PostHog?⌄

What it is — Plausible: Privacy-friendly web analytics. PostHog: Product analytics suite. What it measures — Plausible: Website traffic, goals and funnels. PostHog: Product events, replays, flags, errors. Self-hosting — Plausible: Yes, Community Edition (AGPL). PostHog: Hobby deploy (about 100K events a month). How you pay — Plausible: Monthly plan by pageview volume. PostHog: Free allowance, then per-product usage. Free access — Plausible: 30-day trial; free self-hosted edition. PostHog: 1M events and 5K recordings a month.

Plausible vs PostHog: which is cheaper?⌄

Plausible pricing: From $9/mo. PostHog pricing: Free · then usage-based. Confirm current pricing on each tool's official site, as plans change.

When should I skip both Plausible and PostHog?⌄

Skip Plausible if you need product analytics, session replay or feature flags. PostHog combines them. Skip PostHog if you only need simple website traffic stats. Plausible and Fathom are simpler.

Sources · tool facts checked November 2026