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.

Session Replay & HeatmapsFree tier

Hotjar: Pricing, Features & Alternatives

Hotjar popularised heatmaps and session recordings for marketers and product teams who never open a SQL console. It merged into Contentsquare in 2025, and hotjar.com/pricing now redirects to Contentsquare's pricing. The plans changed with it. The Free plan measures 200,000 sessions a month, but replays only up to 10,000 of them and keeps data for one month; the old Hotjar free plan recorded 35 a day. Growth starts at $49/month ($39 billed annually) for 7,000 sessions with 13 months of data, and climbs through fifteen steps to $739 at 200,000 sessions. Pro and Enterprise are quoted by sales.

Hotjar Pricing Plans (2026)

Plan	Price	Highlights
Free	$0	200,000 sessions / month measured · Up to 10,000 replays · 1 month of data
GrowthPopular	From $49 / month ($39 billed annually)	7,000 sessions / month at entry tier · 13 months of data · 3 projects
Pro	Custom (from 1M sessions)	Quoted by sales

Pricing summary: Free · paid from $49/mo. Always confirm current pricing on the official site.

Key Hotjar Features

7,000 sessions / month at entry tier
13 months of data
3 projects
Scales to $739 / month at 200k sessions

Pros

+Easiest heatmaps and replays for non-technical teams
+Surveys and feedback widgets alongside behaviour data
+Much larger free plan since the Contentsquare merger

Cons

−Pricing climbs steeply with session volume
−Brand and plans in flux after the Contentsquare merger
−Less useful for debugging than developer-focused replay tools

Best Hotjar Alternatives

Compare all

Microsoft Clarity

Free

Fullstory

Free · paid plans by quote

Mouseflow

Free · paid from $25/mo

Hotjar Compared

Hotjar vs Microsoft Clarity Hotjar vs Fullstory Hotjar vs Mouseflow

Hotjar FAQ

What is Hotjar used for?⌄

Hotjar is a session replay & heatmaps tool. The best-known heatmap and session recording tool, now sold as part of Contentsquare. Growth starts at $49/month for 7,000 sessions.

Is Hotjar free?⌄

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

How much does Hotjar cost?⌄

Hotjar offers a free tier, with paid plans starting at $49/month. Some plans are usage-based (pay-as-you-go).

What are the best Hotjar alternatives?⌄

Popular Hotjar alternatives include Microsoft Clarity, Fullstory, Mouseflow. Compare pricing and features on our Hotjar alternatives page.