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.

Usage-Based Billing & Metering

Metronome: Pricing, Features & Alternatives

Metronome meters usage in real time and turns it into invoices for usage, seat, subscription and hybrid pricing, including enterprise contracts with commits, credits and overrides. It is built for very high event volume, which is why AI and infrastructure companies use it. Stripe completed its roughly $1B acquisition in January 2026 and Metronome still sells as its own product. The Startup plan is 0.8% of billed volume plus $0.04 per 1,000 ingested events. Custom adds Salesforce, NetSuite and cloud-marketplace invoicing, warehouse exports and enhanced SLAs.

Metronome Pricing Plans (2026)

Plan	Price	Highlights
StartupPopular	0.8% of billings + $0.04 / 1K events	Real-time metering · Usage, seat and hybrid pricing · Stripe integration
Custom	Custom	Salesforce, NetSuite and marketplace invoicing · Warehouse exports · Dedicated account manager

Pricing summary: Usage-based. Always confirm current pricing on the official site.

Key Metronome Features

Real-time metering
Usage, seat and hybrid pricing
Stripe integration
Embeddable usage dashboards

Pros

+Handles very high event volume
+Enterprise contracts with commits and credits
+Tight Stripe integration now that Stripe owns it

Cons

−Percentage-of-billings pricing grows with revenue
−Not open source
−More than most early-stage products need

Best Metronome Alternatives

Compare all

Lago

Free · paid from $599/mo

Flexprice

Free · paid from $500/mo

Orb

Usage-based

Metronome Compared

Metronome vs Lago Metronome vs Orb Metronome vs Flexprice

Metronome FAQ

What is Metronome used for?⌄

Metronome is a usage-based billing & metering tool. Usage-based billing platform for AI and cloud companies, now owned by Stripe. Real-time metering, contracts and credits at very high event volume.

Is Metronome free?⌄

Metronome does not offer a permanent free tier.

How much does Metronome cost?⌄

Metronome uses usage-based (pay-as-you-go) pricing — see the official pricing page for current rates.

What are the best Metronome alternatives?⌄

Popular Metronome alternatives include Lago, Flexprice, Orb. Compare pricing and features on our Metronome alternatives page.