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.

CDN & Edge CachingFree tier

Fastly: Pricing, Features & Alternatives

Fastly is the CDN engineers choose for control: purges land globally in about 150 ms, caching logic is configurable in VCL, and Fastly Compute runs WebAssembly at the edge. A free developer allowance covers 100 GB of delivery and 1M requests a month. Beyond that, usage is billed by region at $0.08 to $0.28 per GB, or bought as packages starting with Basic at $1,500/month (100M requests) and Starter at $6,000/month. Security products and the larger packages are quoted.

Fastly Pricing Plans (2026)

Plan	Price	Highlights
Free allowance	$0	100 GB delivery / month · 1M requests / month · 5 TLS domains
Usage-basedPopular	$0.08–$0.28 / GB by region	Instant purge · Fastly Compute (Wasm) · Real-time logging
Basic package	$1,500 / month	100M requests / month · 20 TLS domains · 30M image requests
Advantage / Ultimate	Custom	2B–5B requests / month · Contracted support

Pricing summary: Free · paid from $1500/mo. Always confirm current pricing on the official site.

Key Fastly Features

Instant purge
Fastly Compute (Wasm)
Real-time logging

Pros

+Global purges in roughly 150 ms
+Fine-grained cache control with VCL and edge compute
+Real-time logs and metrics streaming

Cons

−Per-GB rates are several times Bunny's
−Packages start at $1,500/month
−VCL is a learning curve of its own

Best Fastly Alternatives

Compare all

Bunny CDN

Free · then usage-based

Cloudflare CDN

Free · paid from $25/mo

Akamai

Usage-based

Fastly Compared

Fastly vs Bunny CDN Fastly vs Cloudflare CDN Fastly vs Akamai

Fastly FAQ

What is Fastly used for?⌄

Fastly is a cdn & edge caching tool. Programmable edge cloud with instant cache purges and Compute at the edge, used by large publishers and commerce sites.

Is Fastly free?⌄

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

How much does Fastly cost?⌄

Fastly offers a free tier, with paid plans starting at $1500/month. Some plans are usage-based (pay-as-you-go).

What are the best Fastly alternatives?⌄

Popular Fastly alternatives include Bunny CDN, Cloudflare CDN, Akamai. Compare pricing and features on our Fastly alternatives page.