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.

Document Parsing for AIFree tier

Unstructured: Pricing, Features & Alternatives

Name: App Stack Builder
Availability: InStock

Unstructured started as an open-source Python library, Apache-2.0 with about 15,600 GitHub stars, for partitioning PDFs, Office files, HTML, emails and images into typed elements such as titles, tables and list items. The hosted platform wraps that into full pipelines: pull files from S3, Google Drive, SharePoint or Confluence, parse them, chunk, enrich, embed, and write the result to a vector database or warehouse on a schedule. That connector-and-pipeline layer is the main reason teams pick it over a parse-only API.

The platform gives 10,000 free pages with no card, then charges $0.015 a page ($15 per 1,000) with all features included. Business is custom and adds multi-user accounts, dedicated support, and deployment as a dedicated instance, in your VPC or on bare metal. The open-source library is free to run anywhere but has fewer models and no hosted pipelines. As of October 2026.

Unstructured Pricing Plans (2026)

Plan	Price	Highlights
Open source	Free (Apache-2.0)	Python library you run yourself · Partitioning and chunking · Fewer models than the platform
Pay as you goPopular	$15 per 1,000 pages	First 10,000 pages free · No card to start · All features and connectors
Business	Custom	Multi-user accounts · Dedicated instance, in-VPC or bare metal · Dedicated technical support

Pricing summary: Free · then usage-based. Always confirm current pricing on the official site.

Key Unstructured Features

First 10,000 pages free
No card to start
All features and connectors

Pros

+Open-source library you can run anywhere
+Source and destination connectors for full ingestion pipelines
+Simple flat per-page price

Cons

−Hosted per-page price is higher than basic parsing elsewhere
−Open-source library trails the hosted models on hard layouts
−More pipeline than you need if you only want Markdown

Best Unstructured Alternatives

Compare all

Docling

Free

LlamaParse

Free · paid from $50/mo

Reducto

Usage-based

Unstructured Compared

Unstructured vs Docling Unstructured vs LlamaParse Unstructured vs Reducto

Unstructured FAQ

What is Unstructured used for?⌄

Unstructured is a document parsing for ai tool. ETL for unstructured data: an Apache-2.0 Python library plus a hosted platform at $15 per 1,000 pages after 10,000 free, with connectors that move parsed, chunked and embedded content into your vector store.

Is Unstructured free?⌄

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

How much does Unstructured cost?⌄

Unstructured is free to use, with usage-based pricing on some features.

What are the best Unstructured alternatives?⌄

Popular Unstructured alternatives include Docling, LlamaParse, Reducto. Compare pricing and features on our Unstructured alternatives page.