PAT Testing · Fire Safety · Water Hygiene · and more

Compliance software
built by someone
who's been on site.

18 years in UK compliance. I built the tools I always wished existed. Professional apps, one fair price.

See PAT Testing App →Our story
BS 1363IET CoP 5th EdEaWR 1989BS 5839L8 ACOPCOSHH 2002BS 7671

Live Now

Arnold PAT Testing

Professional portable appliance testing records, IET CoP 5th Edition pass/fail logic, PDF certificates, client management — all offline on your iPhone or iPad.

  • —BS 1363 & IET CoP 5th Ed compliant
  • —Offline-first — works anywhere on site
  • —Instant PDF certificates
  • —35+ appliance types built in
  • —Cloud backup across devices
  • —£4.99/year — unlimited tests
Full details & downloadView all apps
35+
Appliance types
IET CoP
5th Edition logic
100%
Works offline
£4.99
Per year, unlimited

Available on

iPhone & iPad · iOS 17+

Android & web dashboard — coming soon

Roadmap

More apps coming soon

See full roadmap →
🔥

Arnold Fire Safety

BS 5839 · BS 5306

💧

Arnold Water Temperature

L8 ACOP · HSG274

Live →

🧹

Arnold Cleaning Records

COSHH 2002 · BICSc

⚗️

Arnold COSHH Manager

COSHH Regs 2002 · EH40

🔌

Arnold Fixed Wire Testing

BS 7671 : 2018

🏗️

Arnold Asbestos Manager

CAR 2012 · HSG264

All apps £4.99/year. Sign up on the contact page to be notified when they launch.

The Story

18 years on UK sites.
Now building the tools I always needed.

I've tested thousands of appliances, filled in paper forms in plant rooms, and used software that cost more than it was worth. Arnold Compliance is what I built for myself — and then realised every compliance engineer in the UK needed.

Read the full story →
Experience18 years in UK compliance
FocusSmall & medium businesses
Price£4.99/year — no hidden costs
PlatformiOS · Android soon · Web coming