Testing and browsers services compared: free tiers and pricing

4 testing and browsers services, each with its free tier and lowest paid price as read from its pricing page.

Service	Free tier	Lowest paid price	Checked
Browserbase	Free: $0/mo, 3 agent runs and $5 in model tokens	Developer $20/mo; Startup $99/mo	2026-10-23
BrowserStack	Free trial	Freelancer plan $19/mo month-to-month (less billed annually)	2026-10-23
Checkly	Hobby: $0/mo	Starter $24/mo; Team $64/mo (billed annually)	2026-10-23
Mailtrap	Free plan	—	2026-10-23

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Prices read from each vendor’s own pricing page

Vercel
Supabase
Stripe
Clerk
Resend
Neon
Cloudflare
PostHog

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Claude
ChatGPT
Cursor
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Cost now, as you grow, and in year one after startup credits
Cost cliffs, and stay, optimise or switch comparisons
70 vendors priced in full, with every plan and what it includes, and more being added
317 developer services on Vendors, 70 priced in full and the rest with free tiers and starting prices, growing as we research more
Audits of apps already built: what they run on, what to change
MCP server with 34 tools for Claude, ChatGPT, Cursor and more
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Where do the prices come from?

From each vendor's own pricing page. 70 of the 70 vendors in the cost engine were checked against their pricing pages in October 2026; any others are marked unverified. The other services on Vendors were read in October 2026 for their free tier and lowest paid price; the ones we couldn't read are marked Not Priced Yet. Both keep growing: we add vendors and services as we research them. Every answer lists its sources and the date each price was checked, and a price counts as out of date after 14 days. Check the vendor's page before you commit to anything.

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Testing and browsers services compared: free tiers and pricing

What do I use to build this?And how much will it cost?What do you want to build?

What Are You Building?

Prices read from each vendor’s own pricing page

One placefor every stack decision.

Plan

Cost as you grow

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Billing

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Give your AI assistantaccess to Kong Reviews.

See what real productsare built on.

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Missing a Vendor?

Questions

Pick what works.Build what’s next.

What do I use to build this?
And how much will it cost?What do you want to build?

One place
for every stack decision.

Give your AI assistant
access to Kong Reviews.

See what real products
are built on.

Already built?
Start from what you run.

Pick what works.
Build what’s next.

Pick what works.
Build what’s next.