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.

Feature Flags & ExperimentsFree tier

Statsig: Pricing, Features & Alternatives

Statsig started as an experimentation platform and grew flags, analytics and session replay around it, which is the opposite direction from most of this category and shows in the product: the stats — sequential testing, CUPED variance reduction, automated readouts — are the reason teams pick it. Pricing is metered on events, with a $150 Pro tier and a free tier that includes 2M events a month.

Statsig Pricing Plans (2026)

Plan	Price	Highlights
Developer	$0 (2M events / month)	Unlimited flag checks · 2M events per month · Session replay
ProPopular	$150 / month (5M events, then $0.05 per 1K)	5M events included · 100K session replays · Warehouse-native option
Enterprise	Custom	Warehouse-native deployment · Volume discounts · Data integrations

Pricing summary: Free · paid from $150/mo. Always confirm current pricing on the official site.

Key Statsig Features

5M events included
100K session replays
Warehouse-native option
Advanced statistics

Pros

+Experimentation stats are best in class
+Flags, analytics and replay in one bill
+Generous free tier
+Warehouse-native deployment option

Cons

−Event metering can spike unexpectedly
−Analytics is thinner than a dedicated tool
−Newer to enterprise procurement

Best Statsig Alternatives

Compare all

LaunchDarkly

Free

ConfigCat

Free · paid from $110/mo

GrowthBook

Free · paid from $40/mo

Unleash

Free · paid from $75/mo

Flagsmith

Free · paid from $45/mo

Statsig Compared

Statsig vs LaunchDarkly Statsig vs ConfigCat Statsig vs GrowthBook Statsig vs Unleash Statsig vs Flagsmith

Statsig FAQ

What is Statsig used for?⌄

Statsig is a feature flags & experiments tool. Flags, experiments and product analytics in one tool, with the statistics engine that made it worth switching.

Is Statsig free?⌄

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

How much does Statsig cost?⌄

Statsig offers a free tier, with paid plans starting at $150/month. Some plans are usage-based (pay-as-you-go).

What are the best Statsig alternatives?⌄

Popular Statsig alternatives include LaunchDarkly, ConfigCat, GrowthBook, Unleash, Flagsmith. Compare pricing and features on our Statsig alternatives page.

Not sure if Statsig fits your stack?

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

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