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Electro Master
Electro Master — pro electrical calculators in your pocket
Electro Master puts 11 electrical calculators, an offline reference library, and PDF project reports in one app — no more juggling a calculator, notebook, and printed tables on site. Everything works fully offline, and every calculator shows the formula behind the result so you can trust the numbers. Free core tools; Pro unlocks short-circuit, motor starters, grounding & more. Available in 5 languages (EN, ES, BG, RO, SR). Built with electricians, for electricians.
I built ElectroMaster because every electrician I know still juggles a calculator, a notebook, and a stack of reference tables on the job site. I wanted all of it in one fast, reliable app that works fully offline — because basements and substations don't have signal.
What's inside:
⚡ 11 electrical calculators
Free: Ohm's Law, Voltage Drop, Cable Sizing, Fuse/Breaker, Power
Pro: Power Factor Correction, Short-Circuit, Grounding, Lighting, Motor Starters (DOL & Star-Delta)
📚 Offline reference library — cable ampacities, standard ratings and tables, always in your pocket, no internet needed.
📁 Projects & documents — organize jobs, attach photos, and export clean PDF reports to share with clients or your team.
🌍 5 languages — English, Spanish, Bulgarian, Romanian, Serbian.
🎯 Built with electricians in mind: every calculator shows the formula behind the result, validates your inputs, and gives you numbers you can trust in the field.
Free to use with core calculators, or unlock everything (all Pro calculators + no ads) for €2.99/month.
I'd love your feedback — what calculator should I add next? 🔌
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About Electro Master on Product Hunt
“Electro Master — pro electrical calculators in your pocket”
Electro Master was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #35 on the daily leaderboard. Electro Master puts 11 electrical calculators, an offline reference library, and PDF project reports in one app — no more juggling a calculator, notebook, and printed tables on site. Everything works fully offline, and every calculator shows the formula behind the result so you can trust the numbers. Free core tools; Pro unlocks short-circuit, motor starters, grounding & more. Available in 5 languages (EN, ES, BG, RO, SR). Built with electricians, for electricians.
Electro Master was featured in Android (57.4k followers), Developer Tools (516.3k followers) and Tech (628.5k followers) on Product Hunt. Together, these topics include over 287k products, making this a competitive space to launch in.
Who hunted Electro Master?
Electro Master was hunted by Ivan Pirgozliev. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
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Ivan Pirgozliev
👋 Hey Product Hunt!
I built ElectroMaster because every electrician I know still juggles a calculator, a notebook, and a stack of reference tables on the job site. I wanted all of it in one fast, reliable app that works fully offline — because basements and substations don't have signal.
What's inside:
⚡ 11 electrical calculators
Free: Ohm's Law, Voltage Drop, Cable Sizing, Fuse/Breaker, Power
Pro: Power Factor Correction, Short-Circuit, Grounding, Lighting, Motor Starters (DOL & Star-Delta)
📚 Offline reference library — cable ampacities, standard ratings and tables, always in your pocket, no internet needed.
📁 Projects & documents — organize jobs, attach photos, and export clean PDF reports to share with clients or your team.
🌍 5 languages — English, Spanish, Bulgarian, Romanian, Serbian.
🎯 Built with electricians in mind: every calculator shows the formula behind the result, validates your inputs, and gives you numbers you can trust in the field.
Free to use with core calculators, or unlock everything (all Pro calculators + no ads) for €2.99/month.
I'd love your feedback — what calculator should I add next? 🔌