Best Low Voltage Systems Guide Apps

151+ iOS apps curated and reviewed

4.6 avg rating
16 free apps
Updated May 2026

From beginner-friendly picks to power-user tools, our low voltage systems guide list covers 151+ iPhone apps updated through May 2026. Compare ratings, prices, and screenshots in one place.

Top Picks for Low Voltage Systems Guide

Southwire® Voltage Drop Calc#2

Southwire® Voltage Drop Calc by Southwire Company

Southwire Calculator
Strong Contender
🔧 Utilities
4.6😐(1.4K ratings)
Free
Southwire® Voltage Drop Calc screenshot 1
Southwire® Voltage Drop Calc screenshot 2
Southwire® Voltage Drop Calc screenshot 3
Southwire® Voltage Drop Calc screenshot 4
Southwire® Voltage Drop Calc screenshot 5
Southwire® Voltage Drop Calc screenshot 6

Calculate the right wire size for your electrical circuit with this voltage drop calculator. Ensure proper conductivity while meeting specific voltage drop limits and NEC ampacity standards. Perfect for AWG and KCMIL sizes in various applications.

What We Love

  • 🚀 Quick and useful
  • 🚀 Great Quick Reference
  • 👍 A must have app for electricians
  • 👍 Love These

Room to Improve

  • 🐛 Motor starting Voltage drop
  • 🐛 Useless!
  • 🐛 Won't work
Ugly's Electrical References#3

Ugly's Electrical References by Informed Publishing

Worth Considering
📊 Productivity
5.0😐(1 ratings)
$12.99
#5in Productivity
Ugly's Electrical References screenshot 1
Ugly's Electrical References screenshot 2
Ugly's Electrical References screenshot 3
Ugly's Electrical References screenshot 4

This app is a comprehensive electrical reference guide that has been updated to align with the 2020 National Electrical Code. It offers a range of features such as calculators, interactive tools, and in-depth information for electricians, making it a valuable on-the-job resource.

What We Love

  • 🚀 Quick reference
  • 👍 Helpful for apprentices and journeymen
  • 👍 Convenient to have on phone
  • 👍 Useful calculators

Room to Improve

  • 🐛 Videos/audio not working
  • 🐛 Bookmarking issues
  • 🐛 Glitchy navigation

More Low Voltage Systems Guide apps to explore

4
Master Electrician Ref. Lite
Master Electrician Ref. Lite
Master Electrician Ref. Lite
A handbook for electricians
Free

A comprehensive electronic pocket electrician reference guide for electrical professionals and enthusiasts, providing essential information, calculations, NEC tables, and safety manuals. Visit MasterSparky.com for more details and upgrade to the full version for extensive content covering NEC codes over various years.

📊 Productivity
(2.4K)
5
Voltage Drop Calculator.
Voltage Drop Calculator.
Voltage Drop Calculator.
Wire Size, NEC & IEC Tools
Free
🔧 Utilities
(411)
6
WireSizer - DC Voltage Drop
WireSizer - DC Voltage Drop
WireSizer - DC Voltage Drop
DC Wire Size Calculator
$4.99

This DC Voltage Drop Calculator makes it easy to choose the right wire size for low-voltage DC systems, providing fast, accurate, and intuitive calculations for professionals and DIY enthusiasts alike. Simply input your circuit details and instantly see the correct wire gauge for your desired voltage drop, ensuring safe and efficient electrical connections.

🔧 Utilities
(224)
7
Electrician Handbook — Basics
Electrician Handbook — Basics
Electrician Handbook — Basics
Electric circuit, voltage, ohm
Free
$5.99 | 100% OFF

An essential Electrician's Handbook for learning electrical theory, circuits, and calculations, suitable for beginners, amateurs, and professionals in the field. Featuring theory explanations, interactive circuit diagrams, calculators, and practical installation guides. Improve your electrical knowledge and skills with this comprehensive manual.

🔍 Reference
(965)
8
Ohms Law Calc.
Ohms Law Calc.
Ohms Law Calc.
Wire Size & Voltage Drop
Free

Ohms Law Calc. is a comprehensive app featuring 62 electrical calculators and formulas for various calculations such as voltage, current, resistance, and power. Explore a wide range of tools including voltage drop, power factor, transformer calculator, and more!

🔧 Utilities
(1.3K)
9
NEMA Guide
NEMA Guide
NEMA Guide
NEMA Configuration Guide
Free
🔧 Utilities
(0)
10
Prysmian Group Voltage Drop
Prysmian Group Voltage Drop
Prysmian Group Voltage Drop
by Prysmian S.p.A.
Free

This tool helps electrical professionals quickly calculate maximum circuit distance and minimum conductor size for a required voltage drop, providing essential details like actual voltage loss and maximum amps. Try it out to easily determine conductor sizes and circuit distances based on NEC codes and conductor types.

📊 Productivity
(6)
11
Learn Electronics Basics
Learn Electronics Basics
Learn Electronics Basics
Basic Concepts of Electronics
Free

This app is designed to help students, engineers, and professionals learn and recollect the basics of electronics, covering topics such as electricity, voltage, current, and components like diodes and transformers. With a user-friendly interface, it provides a comprehensive guide to gain preliminary knowledge in electronics, and users are encouraged to provide ratings, feedback, and suggestions.

📚 Education
(6)
12
Medium Voltage Calculations
Medium Voltage Calculations
Medium Voltage Calculations
Medium voltage installations
Free
📊 Productivity
(1)
13
Overhead Install Guide
Overhead Install Guide
Overhead Install Guide
Southwire Calculator
Free
🔧 Utilities
(4)
14
Victron Toolkit
Victron Toolkit
Victron Toolkit
by Victron Energy
Free

This application enables users to optimize their system's performance with precise diagnostics and user-friendly tools, allowing for easy device status checks, voltage drop calculations, and inverter/charger performance monitoring. By using this tool, users can ensure a reliable system and make informed decisions with confidence.

💼 Business
(11)
15
Alpha Electricity 101 Guide
Alpha Electricity 101 Guide
Alpha Electricity 101 Guide
by Alpha Technologies, Inc.
Free
💼 Business
(1)
16
Digital Electronics Guide
Digital Electronics Guide
Digital Electronics Guide
Digital circuits made simple
Free

This powerful reference tool helps electronics students, engineers, and hobbyists design, learn, and prototype digital circuits with ease, covering essential theory and practical guides on key topics. Perfect for quick learning or as a companion for working on electronic circuits and digital systems, start exploring and building your digital electronics projects today!

📚 Education
(2)
17
Electronics Engineer Helper
Electronics Engineer Helper
Electronics Engineer Helper
Calculators and references
Free

A must-have app for electronics enthusiasts with calculators and references covering a wide range of topics including Ohm's law, capacitor codes, resistor color marking, and much more. Join over 100,000 users in simplifying electronics work or studies today. Unlock even more tools with the PRO version for enhanced functionality. Check it out now!

📊 Productivity
(427)
18
Generac Field Pro
Generac Field Pro
Generac Field Pro
by Generac Power Systems, Inc.
Free

This application streamlines the installation and commissioning of Generac energy systems with a guided workflow, smart updates, and diagnostic tools, allowing users to test and register systems efficiently. Get started with a few taps and simplify the installation process today.

🔧 Utilities
(17)
19
MasterElec - NEC Code Guide
MasterElec - NEC Code Guide
MasterElec - NEC Code Guide
Electrical Voice Assistant
Free
🔧 Utilities
(0)
20
Lineman's Reference - XFMR LAB
Lineman's Reference - XFMR LAB
Lineman's Reference - XFMR LAB
Interactive Transformer Lab
$12.99

An interactive transformer lab simulator app designed for lineman and apprentices, allowing users to study transformer connections with tools like a volt meter, ohm meter, and rotation meter. Features quick reference diagrams, quizzes, customized experiences for power companies, and various labs for different transformer configurations. Accessible learning tool for mastering transformer operations and configurations.

📚 Education
(123)