Tightness Test
Step through a structured tightness testing workflow with guided routing and a clear pass/fail outcome to record against the job.
A TightnessPro app by Audit-Pro Ltd
Tightness testing, purging & volume — done on site.
TightnessPro guides qualified gas engineers through structured tightness testing, direct purge, and installation-volume workflows, then produces clean, branded PDF records with captured signatures — all from your phone or tablet.
Coming soon
App Store
Coming soon
Google Play
- Works offline in the field
- On-device data — nothing sent to us
- Branded PDF reports
Three core workflows
Direct Purge
Run a direct purge workflow with the calculations handled for you, capturing the details needed for a complete record.
Installation Volume
Calculate installation volume from pipe sections and meter volume, ready to feed into your test and reporting.
Built for engineers in the field
Guided & offline
Clear, step-by-step screens that work without a signal on site. A short offline grace period keeps you working if connectivity drops.
Branded records
Apply your company name, logo, and operative details so every exported report carries your branding.
Captured signatures
Collect the engineer signature, and an optional gas-user signature, directly on the device before export.
Private by design
Your company details, job data, and reports are stored only on your device. We do not run a server that collects your data.
Easy export
Generate a PDF and open, print, or share it with your own tools. Files are named by date and site for tidy record-keeping.
Phone or tablet
A responsive layout designed for everyday use on the devices you already carry to the job.
Professional PDF reports
Each tightness test and purge can be exported as a structured PDF record that includes your company details, the site address, the captured signatures, and the relevant test details — ready to hand to the customer or keep for your files.
TightnessPro is a calculation and reporting aid for qualified gas engineers. It supports, but does not replace, your professional judgement, applicable gas safety requirements, manufacturer instructions, and your own working procedures. You remain responsible for verifying results and for the safety and compliance of any work.
Simple subscription
TightnessPro is available on an annual subscription with a 7-day free trial for new subscribers. Billing is handled by the App Store or Google Play, and you can manage or cancel any time in your store account settings.