One bill. One login. Four products.

Construction software priced like
software, not consulting.

Replace Procore + BrightHR + HBXL + Xero with four UK-built products that share one database. Same workflow. One tenth of the bill. Month-to-month, cancel any time.

Live

Site-Lynx

Site compliance, one workstation

from £12/month — scales by team size

Fifteen modules. Five team tiers: Solo £12, Team £29 (5), Business £69 (15), Company £149 (40). Free tier with watermarked PDFs.

  • RAMS, QA, Safety, Permits, Snags, Plant — 15 modules
  • 1,200+ UK regulatory references preloaded
  • AI-drafted RAMS in minutes
  • Team tiers up to 40 seats
  • COSHH module
  • Operative mobile app
Start free
Standard

Work-Lynx

HR + workforce, global ready

£2.50base /mo + £1 /employee

Every HR feature on every plan. 5-employee team = £7.50/mo.

  • GPS clock-in with geofences
  • Rotas, timesheets, leave, training
  • 49 UK policies preloaded
  • Employ AI — UK employment-law advisor
  • Calendar wall planner
  • Country-aware (UK / US / AU / IE)
Start 14-day trial
Per user

Cost-Lynx

Estimating built by a commercial manager

£22/user/month, all features

NRM2 BoQ + take-off + 537 UK 2026 rates preloaded.

  • NRM2-compliant BoQ editor
  • 537-rate UK 2026 starter library
  • AI rate suggest with provenance
  • 29 trade packages incl. architectural metalwork
  • Tender log with PLN-clock
  • Auto hand-off to Invo-Lynx on award
Coming soon
Pro

Invo-Lynx

Construction billing + accounts

£15/user/month · 30-day free trial

30 days free, no card. £15 per user for the full product — AfP, PLN clock, CIS300, subbie portal, retention, DRC VAT. MTD VAT, bank feeds, OCR landing through 2026.

  • 30-day free trial — no card needed
  • Applications for Payment with PLN clock
  • Pay Less Notice (s.111) PDF generator
  • Subbie portal — invited subbies free
  • CIS300 monthly return + statements
  • Domestic Reverse Charge VAT
Coming soon
Self-employed?

For the 4.3M UK sole-traders Xero forgot about.

One-person business, no time for accountancy software that costs more than your phone bill.

Best value

Invo-Lynx

£15/mo/month

One-person business? One user is £15 a month after a 30-day free trial. Unlimited invoices, unlimited quotes, CIS on subbie lines — everything you need to bill clients.

  • Unlimited invoices
  • Unlimited quotes
  • Stripe pay-link on every invoice
  • CIS deductions on subbie lines
  • Mobile-first
  • 30 days free · no card to start
Encrypted by default
TLS in transit, AES-256 at rest
UK-hosted
AWS London + Cloudflare
ICO registered
Data protection assured
Same login, same bill
No duplicate accounts, no faff

Pricing questions.

The bits people ask before they sign up.

No. Buy any one, pick up others as you need them. Same login, same bill, no migration when you add a product. Most contractors land on Site-Lynx + Invo-Lynx first, add Work-Lynx when team passes 5, Cost-Lynx when they win their first tender.

Try it free. No card.

Pick a product, sign up, build something. If it's not for you, you pay nothing.

Start free