Pricing · field commissioning tool
The field tool for BMS commissioning engineers and system integrators. It runs on your laptop, in the plant room, with no signal — no cloud, no account, nothing leaves the building.
The trial unlocks the full Pro feature set for 14 days. Email only, one per machine. Exports stay watermarked during the trial.
See it in the plant room
Real screens from a live job — a rack of Schneider & Socomec meters found over Modbus TCP, a Trend controller browsed over BACnet, the network mapped, and the branded PDF you hand the client.
Plans
Three plans, priced for a small trade, not a SaaS funnel. Prices ex-VAT; VAT or your country’s sales tax is added at checkout and a VAT invoice is provided.
Free · no account
For every engineer with a laptop in a plant room. Browse, scan and read any network.
No licence, no account, no expiry.
Per engineer
For the engineer who hands a deliverable to a client — branded reports, conversions, trend logs.
Or £249 one-time perpetual + £69/yr maintenance (updates + support; lapse and you keep your last build).
The 14-day trial opens the full Pro feature set — email only, no card.
For teams
For firms that would rather not count seats. Every engineer, one licence.
Per company site, unlimited engineers. Cheaper than per-seat from ~6 engineers up.
Enterprise — from £2,500/yr. Everything in Site, plus floating / concurrent seats, central activation and seat management, priority support, custom branding and onboarding.
Talk to us about Enterprise →
Full comparison
Reading the plant is free. Producing commissioning deliverables and working at scale is paid.
| Capability | Community | Pro | Site | Enterprise |
|---|---|---|---|---|
| BACnet discovery, browse, read-all-properties, priority-array | ✓ | ✓ | ✓ | ✓ |
| Modbus master read (FC 1–4) + interpretation | ✓ | ✓ | ✓ | ✓ |
| IP Scanner (full, incl. IEEE OUI DB, mDNS/LLMNR) | ✓ | ✓ | ✓ | ✓ |
| Bench Tools (decoder / scaler / thermistor / RTD / units / subnet) | ✓ | ✓ | ✓ | ✓ |
| Single-device BACnet + Modbus simulator | ✓ | ✓ | ✓ | ✓ |
| Manual single writes (BACnet PV / Modbus FC 5,6) with confirm | ✓ | ✓ | ✓ | ✓ |
| Trend Logger — live chart | 2-channel | ✓ unlimited | ✓ | ✓ |
| Data import / export — CSV in & out, Excel, JSON, trend→CSV | — | ✓ | ✓ | ✓ |
| Branded commissioning report (PDF) | — | ✓ | ✓ | ✓ |
| Converters — point-list conversion, .ppm.json, Trend/Niagara | — | ✓ | ✓ | ✓ |
| Saved connection profiles / per-site memory | — | ✓ | ✓ | ✓ |
| Bulk / cyclic / scripted writes, high-concurrency scans | — | ✓ | ✓ | ✓ |
| Floating / concurrent seats, central activation, seat management | — | — | — | ✓ |
| Support, custom branding, onboarding | — | ✓ priority |
Site is a per-site licence for unlimited engineers; it does not use floating/concurrent seats or central activation — those are Enterprise features.
How licensing works
Here is exactly what happens — before you pay and after.
Email address only — no account to create. Unlocks the full Pro feature set, so you can put the whole thing on a real job. The catch: exports stay watermarked until there’s a paid licence on the machine. One trial per machine.
A licence is a signed code (RSA-2048) locked to one machine — PSBMS holds the private key, the app only verifies. No signal? The app shows your Machine ID, you send it, we mint the code, you paste it in. No agent, no phone-home, no telemetry.
Payment runs through a Merchant of Record (Paddle / Lemon Squeezy), so VAT and US sales tax are calculated and collected correctly for your country. Prices are ex-VAT; a proper VAT invoice comes with every purchase.
While a subscription is active the licence renews automatically. If a renewal can’t reach us because you were offline, a 14-day offline grace period keeps Pro running, and you can re-activate any time by pasting a fresh code.
Cancel and the licence simply stops renewing; at expiry the tool drops to Community (free). Your saved sites, profiles and logs stay on disk — import/export and the branded report simply lock (they’re Pro features). Prefer to buy outright? Take the perpetual licence: £249 one-time + £69/yr optional maintenance — let maintenance lapse and your last build keeps running.
FAQ
Ready when you are
Community is a single offline .exe — no account, no card, no expiry. When you need the deliverables, the trial opens the full Pro feature set with one click.