Rates card
Free to use. $12 when it's earning its keep.
Try everything free for 7 days — $0 today, cancel anytime. The 3 free tools stay free forever; Pro is for when builder.tools is part of how you run the business.
Free
$0forever
3 reviewed US tools, free forever — no account needed.
- Add a card and every reviewed US Pro tool is free for 7 days — cancel anytime
- 3 US-ready calculators and practical job tools
- Concrete, Paint and the Unit Converter
- Complete calculator results with no account or card
- Results stay on this device
Most popular
Pro
$12per month founding price — locked for life. Rising to $15 for new members. Or $109/year.
11 reviewed tools for US contractors, with more added after localization review.
- All 11 reviewed US tools and calculators unlocked
- US customary measurements, American terminology and dollar pricing
- New reviewed US localizations included as they are released
- Account with cloud sync — pick up any job on any device
- Your business details on every export, no watermark
Site
$39per month
The whole company working from one playbook.
- Everything in Pro, for up to 4 people
- Invite your team by email
- Shared business profile on quotes & invoices
- Priority support from a real person
Fair questions
- Is the free plan actually free?
- Yes. 3 reviewed US tools need no account or card: Concrete, Paint and the Unit Converter.
- Does one account work in the UK and US versions?
- Yes. Your email, password and plan are shared. Starting from a US page keeps the navigation in the US section and opens checkout in dollars.
- What does Pro unlock in the US edition?
- Pro unlocks all 11 tools that have completed US review, keeps the same account across both sections and includes future US localizations as they are released. UK-specific tools remain paused on their US routes until their American method is verified.
- Why are some US tools marked under review?
- Tools tied to UK tax, law, building regulations or British Standards need a separate US method. We pause those results instead of changing the label and presenting UK guidance as American guidance.
- Can I cancel?
- Any time from your account page, with no phone call. Your device-based data remains available either way.