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.

Notifications & RealtimeFree tier

Novu: Pricing, Features & Alternatives

Novu is the open-source answer to writing notification plumbing yourself. You define a workflow once — with steps, digests, delays and per-user preferences — and it fans out to whichever providers you have configured, including a React inbox component you can drop into your product. The whole thing can be self-hosted, which makes it the rare row in this category where building and buying are genuinely close.

Novu Pricing Plans (2026)

Plan	Price	Highlights
Free	$0	10,000 workflow runs / month · Unlimited subscribers · Up to 20 workflows
ProPopular	From $30 / month	30,000+ workflow runs · Higher rate limits · Unlimited subscribers
Team	From $250 / month	250,000+ workflow runs · 600 RPS trigger rate
Enterprise	Custom	10M+ runs · Self-hosted on-prem option · SSO and RBAC

Pricing summary: Free · paid from $30/mo. Always confirm current pricing on the official site.

Key Novu Features

30,000+ workflow runs
Higher rate limits
Unlimited subscribers

Pros

+Fully open source and self-hostable
+Drop-in React inbox component
+Bring your own delivery providers
+Generous free tier

Cons

−Self-hosting is a real operational job
−Smaller provider catalog than rivals
−Pro tier price scales with volume

Best Novu Alternatives

Compare all

Knock

Free · paid from $250/mo

Courier

Free

MagicBell

Free · paid from $249/mo

Novu Compared

Novu vs Knock Novu vs Ably Novu vs Courier Novu vs OneSignal Novu vs MagicBell Novu vs Pusher Channels

Novu FAQ

What is Novu used for?⌄

Novu is a notifications & realtime tool. Open-source notification infrastructure: one workflow drives email, SMS, push, chat and a drop-in in-app inbox.

Is Novu free?⌄

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

How much does Novu cost?⌄

Novu offers a free tier, with paid plans starting at $30/month. Some plans are usage-based (pay-as-you-go).

What are the best Novu alternatives?⌄

Popular Novu alternatives include Knock, Courier, MagicBell. Compare pricing and features on our Novu alternatives page.

Not sure if Novu fits your stack?

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

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