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B12 vs Durable

Two fact sheets from our own research, side by side — pricing, platforms, API access and status re-checked by us rather than quoted from the vendors. B12 starts at $49, Durable at $22. Both have a free tier.

B12Describe a business and get a working site, then keep editing it by chat; adds intake, contracts and invoicingDurableGenerates a service-business site, then sells the CRM around it

Side by side

FactB12Durable
CategoryWebsite BuildersWebsite Builders
Pricing modelFreemiumFreemium
Starts at$49 month$22 month
Public APINoNo
PlatformsWebWeb
CompanyUnlimited Labs Inc.Durable
Launched2016—
Last verifiedSep 6, 2026Sep 6, 2026

What our research says

B12

B12 is less a website builder than a starter back office for a small service business — the generated site is the front door, and intake forms, contracts, e-signature, invoicing and email marketing are what you are actually paying for. That bundle justifies $49 a month in a market where a bare site costs a fraction of it, but only if you use the rest. The $1 introductory rate makes the real number easy to miss.

Pros

  • Generates a full first-draft site from a plain description, then edits by chat
  • Bundles client intake, contact manager, contracts with e-signature and email marketing
  • Free tier publishes a real site on a b12sites.com subdomain with no card
  • Custom domain is included in the paid plan rather than billed separately

Cons

  • $49/month is steep next to general-purpose site builders if you skip the back-office tools
  • AI credits are capped per plan — 30 a month on free, 200 on the $49 tier
  • Professional and Advanced plans carry unpublished setup fees
  • Launched project counts are capped at 20 or 30 depending on tier

Durable

Aimed squarely at trades and local services that have never had a website, and honest about it — the generated site is a competent one-page brochure, not a design. The reason to pay is the CRM, invoicing and booking bolted around it; judged purely as a page builder it loses to the free tiers of the general-purpose tools.

Pros

  • The free tier is a genuinely usable live site, not a time-limited preview
  • Custom domain registration is included in the paid tiers rather than billed separately
  • The 15% annual discount means month-to-month is not punitively priced, unlike most tools here
  • CRM, invoicing and scheduling in the same subscription remove two or three other bills

Cons

  • The free CRM stops at ten contacts, which any working business passes in a fortnight
  • Generated sites share a recognisable structure, so differentiation has to come from the copy
  • No API and no export path, so the site and the customer records live where they were made
  • Grow caps image generation at 500 a month despite being the top self-serve tier

Which one fits

Choose B12 if you need

  • Solo professionals and small service firms needing a site plus client intake in one place
  • Anyone who wants contracts and e-signature attached to their website rather than bought separately
  • Getting a credible first draft online without a designer

Choose Durable if you need

  • Service businesses going from no website to a live one in an afternoon
  • Sole traders who want contacts, invoices and a booking link in the same subscription
  • Anyone who would otherwise pay an agency four figures for a five-section brochure site

More comparisons

Browse all Website Builders →