PRICING

Buy once. Own it forever.

The tool is a one-time purchase. AI is an optional add-on — it burns metered API capacity, so it's the only thing that subscribes.

Free

$0
forever
  • 1 active connection
  • Full Modbus master, all function codes
  • Timeline, byte inspector, slave scan
  • AI trial: 30 explains + 3 extractions
  • Charts limited to 2 channels
Download free
No account. No email. Just the .exe or .zip.
LAUNCH · 30 DAYS

Pro

$69$99
one-time · yours forever · 2 devices
  • Unlimited connections & sessions
  • Slave simulation with value generators
  • Unlimited chart channels + CSV export
  • Offline activation, no phone-home ever
  • Free 1.x updates · priority support
Buy Pro — $69
30-day money-back · VAT handled at checkout by Paddle

AI Assistant

$49
per year · or $6.9 monthly
  • 1,000 frame explanations / month
  • 30 point map extractions / month
  • Works on Free or Pro
  • Frames sent only when you press Explain
  • Nothing stored on the gateway
Add AI Assistant
Cancel anytime · core app unaffected
Launch bundle: Pro + one year of AI for $99 (regular $119) — the whole workbench, under a hundred bucks.
✓ 30-day money-back guarantee✓ Invoices for company reimbursement✓ Merchant of record: Paddle

What exactly does "2 devices" mean?

One Pro key activates two machines at the same time — say, the office desktop and the site laptop. Move anytime by unbinding a slot at fieldbench.app/devices.

Do I need an account?

No. Purchase produces a license key; the key is your identity. No sign-up, no password, nothing to leak.

How do refunds work?

30 days, no questions asked — reply to your receipt email or see the refund policy. Paddle (our merchant of record) processes it back to your original payment method.