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.

AI Video Generation

Best AI Video Generation Tools for Startups in 2026

Compare the best ai video generation tools for startups and developers in 2026. We’ve rounded up 5 options with pricing, free tiers, and features side by side so you can pick the right fit for your stack and budget.

AI Video Generation Tools Compared

Tool	Pricing	Free tier
Synthesia	Free · paid from $29/mo
Luma Dream Machine	From $30/mo	—
Runway	From $15/mo	—
HeyGen	From $29/mo	—
Pika	From $8/mo	—

The Best AI Video Generation Tools, Ranked

1. Synthesia

Free tier· Free · paid from $29/mo

AI presenter videos from a script — 240+ avatars, 140 languages, and the tool most L&D teams use instead of filming.

No camera, studio or reshoots
140 languages from one script
Strong templates for training content

Synthesia & alternatives

2. Luma Dream Machine

· From $30/mo

Text- and image-to-video generation from Luma's Ray models, with credit-based plans and commercial rights from the first paid tier.

Strong image-to-video and keyframe control
Commercial rights on every paid tier
Fast iteration loop

Luma Dream Machine & alternatives

3. Runway

· From $15/mo

AI video generation and editing.

Leading text-to-video quality
Useful editing tools
Fast iteration

Runway & alternatives

4. HeyGen

· From $29/mo

AI avatar video and translation for marketing and training.

Realistic talking avatars
Video translation with lip sync
Good for training content

HeyGen & alternatives

5. Pika

· From $8/mo

AI video generation with strong motion effects.

Cheapest credible AI video
Fun motion and transform effects
Quick generation

Pika & alternatives

How to choose a ai video generation tool

Start with tools that offer a free tier to validate before you pay.
Match the tool to your team size and skill level.
Compare pricing as you scale — watch for per-seat or usage-based costs.
Prefer tools that integrate cleanly with the rest of your stack.

Frequently Asked Questions

What are the best ai video generation tools for startups in 2026?⌄

The best ai video generation tools for startups in 2026 include Synthesia, Luma Dream Machine, Runway, HeyGen, Pika. Compare them by pricing, free tiers, and features in the list above.

What is the best free ai video generation tool?⌄

Free ai video generation options include Synthesia — all offer a free tier suitable for bootstrapped startups and MVPs.

How do I choose a ai video generation tool?⌄

Start with your budget and team size, prefer tools with a free tier to validate, and make sure your pick integrates with the rest of your stack. App Stack Builder can recommend a complete, budget-aware stack in about 60 seconds.

Need the whole stack, not just ai video generation?

Get a free, AI-powered tech stack — matched to your budget, app type, and team size in 60 seconds.

Build my stack free