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Electrician Reviews & Ratings
Rated 4.9 out of 5 by over 148 UK electricians and City & Guilds 2391 candidates.
4.9 / 5
★★★★★
Based on 148+ verified ratings on the UK App Store
★★★★★
Essential for passing the 2391-52 written exam
"The open vs closed book split matches the real exam setup perfectly. The explanations for fault coding observations saved me huge points on my written paper."
Dave Jenkins Approved Electrician & C&G 2391-52 Student • 14 June 2026
★★★★★
Great field tool for Max Zs check and EICR coding
"I use the Max Zs calculator daily on site. Applying the 80% rule instantly without flicking through GN3 tables makes condition reporting much faster."
Marcus Thorne Electrical Inspector, London • 28 May 2026
★★★★★
Brilliant explanation references to BS 7671
"Every question gives the exact regulation citation. Passed my 2391 practical and online exam on the first attempt using this app."
Steve Rogers Electrician & QS • 03 April 2026