Best Voltage Lab Apps

169+ iOS apps curated and reviewed

4.1 avg rating
16 free apps
Updated June 2026

Every iPhone needs a few good voltage lab apps. We benchmark 169+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.

Top Picks for Voltage Lab

VoltLab: Interactive Physics#2

VoltLab: Interactive Physics by Denis Gladkii

Lessons, Tests & Circuits
Strong Contender
📚 Education
5.0(188 ratings)
FreeIn-App Purchases
VoltLab: Interactive Physics screenshot 1
VoltLab: Interactive Physics screenshot 2
VoltLab: Interactive Physics screenshot 3
VoltLab: Interactive Physics screenshot 4
VoltLab: Interactive Physics screenshot 5

This app simplifies learning electricity through interactive lessons and visual experiments. It offers offline access, quizzes with detailed solutions, and a reference guide for formulas. Ideal for students and educators seeking to understand electrical concepts.

Southwire® Voltage Drop Calc#3

Southwire® Voltage Drop Calc by Southwire Company

Southwire Calculator
Worth Considering
🔧 Utilities
4.6😐(1.5K 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 appropriate wire size for electrical circuits. This tool helps determine wire size based on voltage drop and current carrying capacity, ensuring compliance with NEC ampacity limits.

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

More Voltage Lab apps to explore

4
Voltage Divider
Voltage Divider
Voltage Divider
by Ditty Labs, LLC
$1.99

This engineering utility calculates unknown values in a voltage divider circuit. It can solve for voltages or resistor values, displaying ideal and actual resistor options. It also shows current, power, and voltage tolerance.

Solves for Vin, Vout, R1, or R2Resistor picker with actual valuesDisplays ideal resistor value
🔧 Utilities
(3)
paid
5
Lineman's Reference - XFMR LAB
Lineman's Reference - XFMR LAB
Lineman's Reference - XFMR LAB
Interactive Transformer Lab
$12.99

This interactive simulator allows users to study and learn transformer connections. Test your wiring with various meters, and experience consequences of improper connections. Includes reference diagrams, informational material, and a quiz mode to test knowledge.

Transformer connection simulationVolt, ohm, and rotation metersAbnormal voltage and fuse explosion simulation
📚 Education
(123)
free
6
Voltage Mail
Voltage Mail
Voltage Mail
Read and send voltage emails
Free

Securely read and compose encrypted emails on your mobile device. This app allows you to send and receive secure messages, integrating with your existing email accounts and offering robust security features for organizations.

Read encrypted emails and attachmentsCompose new secure email messagesSend and receive secure emails
💼 Business
(736)
freemium
7
Voltage Drop Calculator.
Voltage Drop Calculator.
Voltage Drop Calculator.
Wire Size, NEC & IEC Tools
Free

Calculate voltage drop and wire size using both NEC and IEC standards. Supports various load types, conductor materials, and system configurations. Generates detailed reports for electricians, engineers, and contractors.

NEC and IEC dual standardsVoltage drop and wire sizing calculationsSupport for continuous load and corrections
🔧 Utilities
(411)
free with in-app purchases
8
Prysmian Group Voltage Drop
Prysmian Group Voltage Drop
Prysmian Group Voltage Drop
by Prysmian S.p.A.
Free

Calculate maximum circuit distance and minimum conductor size for required voltage drop. Designed for electrical professionals, it provides detailed information on conductor size, voltage loss, and amperage based on NEC standards.

Calculate Maximum Circuit DistanceDetermine Minimum Conductor SizeView Actual Voltage Loss
📊 Productivity
(6)
free
9
Electrician Handbook — Basics
Electrician Handbook — Basics
Electrician Handbook — Basics
Electric circuit, voltage, ohm
Free
$5.99 | 100% OFF

This app provides electricians, students, and installers with essential electrical theory, interactive diagrams, and practical calculators. It includes a community forum for users to share knowledge and seek advice, all accessible offline without ads or subscriptions.

Electrical theory topicsInteractive circuit diagramsCalculators and formulas
🔍 Reference
(965)
free
10
Top Hand Transformer Lab
Top Hand Transformer Lab
Top Hand Transformer Lab
Wire. Energize. Learn.
$9.99
📚 Education
(0)
11
Voltage Regulator
Voltage Regulator
Voltage Regulator
by Siu Yuen Ho
Free

Calculate resistor combinations for adjustable voltage regulators. This tool helps electronics hobbyists and professionals determine desired output voltages and resistor values. Results can be exported and shared easily.

Adjustable voltage regulator supportCalculate resistor combinationsDetermine resistor values
📚 Education
(4)
freemium
12
Master Electrician Ref. Lite
Master Electrician Ref. Lite
Master Electrician Ref. Lite
A handbook for electricians
Free

This electronic pocket reference guide provides essential information for electrical professionals. It offers calculations, code tables, and detailed sections on motors, ampacities, grounding, and more, all accessible on your mobile device.

Motor and wiring informationAmpacity tablesConduit fill and grounding sizes
📊 Productivity
(2.4K)
paid
13
Circuit Laboratory
Circuit Laboratory
Circuit Laboratory
by Fabrizio Boco
$5.99

Analyze electronic circuits with DC, AC, multifrequency AC, and transient analysis. Draw circuits graphically, modify component parameters, and view voltage and current graphs. Supports various components and offers video tutorials for each.

DC, AC, Multifrequency AC, and Transient AnalysisGraphical circuit drawingComponent parameter editing
📊 Productivity
(2)
paid
14
Ohms Law Calc.
Ohms Law Calc.
Ohms Law Calc.
Wire Size & Voltage Drop
Free

This app provides a comprehensive suite of electrical calculations, including Ohm's Law, voltage drop, wire sizing, and impedance. It also offers numerous converters for various electrical units and parameters, aiding in circuit design and analysis.

Ohm's Law calculationsVoltage drop calculatorWire size calculator
🔧 Utilities
(1.3K)
free with in-app purchases
15
Circuit Simulator - VoltSim
Circuit Simulator - VoltSim
Circuit Simulator - VoltSim
Realtime electronic simulator
Free

Design and simulate electronic and digital circuits in real-time. Visualize voltage and current flow, and analyze circuit behavior with tools like oscilloscopes and multimeters. Offers a user-friendly experience for circuit design and digital electronic analysis.

Real-time electronic circuit simulationDigital circuit simulationVoltage and current analysis
📚 Education
(44)
free with in-app purchases
16
Electronic Lab Free
Electronic Lab Free
Electronic Lab Free
by Luai Elamir
Free

This app provides electrical and computer engineering tools for professionals and hobbyists. It offers circuit design, simulation, component libraries, and measurement functionalities for on-the-go use.

Circuit design and simulationComponent libraries and datasheetsCalculators and unit conversion
📚 Education
(16)
free
17
WCW Voltage Drop Calculator
WCW Voltage Drop Calculator
WCW Voltage Drop Calculator
Windy City Wire
Free

Calculate electrical circuit voltage drop quickly and accurately. Input circuit details like conductor material, wire size, voltage, phase, length, and load to determine voltage drop, percentage drop, and end-circuit voltage for efficient and safe installations.

Calculate voltage dropDetermine percentage voltage dropCalculate voltage at end of circuit
🔧 Utilities
(2)
free
18
Proxxi - Voltage
Proxxi - Voltage
Proxxi - Voltage
Pair to Proxxi Voltage device
Free

This application allows users to connect with and control a specific wearable device. It enables adjustments to settings, management of alerts, and powering the device on or off.

Connect to Proxxi Voltage deviceAdjust device settingsMute device alerts
💼 Business
(6)
free
19
Voltage Divider Calculator
Voltage Divider Calculator
Voltage Divider Calculator
by V PUGAZHENTHI
Free
🔧 Utilities
(0)
20
Physics Lab AR
Physics Lab AR
Physics Lab AR
Learn more from experiment
Free

Explore physics through interactive virtual experiments and augmented reality. Build and test electrical circuits with over 100 components, visualize electromagnetic fields, and even design your own galaxy. Ideal for students, teachers, and curious minds of all ages.

Virtual lab with AR modeBuild 3D electric circuits100+ circuit components
📚 Education
(1.5K)
free with in-app purchases