Best Schematics Apps

174+ iOS apps curated and reviewed

4.3 avg rating
18 free apps
Updated June 2026

From beginner-friendly picks to power-user tools, our schematics list covers 174+ iPhone apps updated through June 2026. Compare ratings, prices, and screenshots in one place.

Top Picks for Schematics

EE ToolKit#1

EE ToolKit by Thomas Gruber

Electronics Engineering
Editor's Choice
📚 Education
4.7😊(1.4K ratings)
FreeIn-App Purchases
EE ToolKit screenshot 1
EE ToolKit screenshot 2
EE ToolKit screenshot 3
EE ToolKit screenshot 4
EE ToolKit screenshot 5
EE ToolKit screenshot 6

This comprehensive toolkit offers over 160 electronic applications, calculators, and reference tools for engineers, students, and hobbyists. It features a multi-functional keyboard, color code tools, audio scope, frequency generator, and component references with datasheet access. The app supports real-time circuit simulations and includes a file manager for saving calculations.

What We Love

  • 👍 Useful tools and features
  • 🚀 Comprehensive and informative
  • 👍 Intuitive and easy to use
  • 👍 Helpful for both beginners and professionals

Room to Improve

  • 🔒 Many features locked behind paywall
  • 🐛 Some bugs and glitches reported
  • 🔍 Limited free version functionality
Simurelay#2

Simurelay by Abdessamed Benkabouya

Strong Contender
📚 Education
4.0(15 ratings)
FreeIn-App Purchases
Simurelay screenshot 1
Simurelay screenshot 2
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Simurelay screenshot 4

Design and simulate electromechanical systems with a wide range of basic electrical components. Create detailed electrical diagrams using relays, switches, buttons, contactors, and timers.

Electrical Troubleshooting MS#3

Electrical Troubleshooting MS by David White

Are you a good troubleshooter?
Worth Considering
📚 Education
4.7(62 ratings)
Free
Electrical Troubleshooting MS screenshot 1
Electrical Troubleshooting MS screenshot 2
Electrical Troubleshooting MS screenshot 3
Electrical Troubleshooting MS screenshot 4
Electrical Troubleshooting MS screenshot 5

Learn to troubleshoot electrical circuits with a virtual voltmeter and PLC logic. This app offers 17 random electrical problems for a challenging learning experience, allowing you to practice identifying issues in motor starters and control circuits.

More Schematics apps to explore

4
EveryCircuit
EveryCircuit
EveryCircuit
by MuseMaze
Free

Build and simulate electronic circuits with dynamic animations of voltage, current, and charge. Adjust parameters in real-time and generate input signals with your finger. Explore a vast library of components and community designs.

Dynamic voltage, current, and charge animationsReal-time parameter adjustment with analog knobArbitrary input signal generation with finger
📚 Education
(57)
free with in-app purchases
5
Electronics Engineer Helper
Electronics Engineer Helper
Electronics Engineer Helper
Calculators and references
Free

This app provides a comprehensive suite of calculators and reference tools for electronics enthusiasts and professionals. It includes features for component identification, circuit calculations, and electrical property analysis, aiding in both study and practical work.

Datasheet searchResistor color code calculatorElectronic schematic symbols
📊 Productivity
(427)
free with in-app purchases
6
Nexur Fit
Nexur Fit
Nexur Fit
by Thiago Braga
Free

This exclusive app allows personal training clients and gym members to access personalized workouts with animated exercise illustrations. It features progress tracking, messaging, a training calendar, and gamified competition among users.

Personalized workout plansAnimated exercise guidesProgress tracking with graphs
💪 Health & Fitness
(11)
free
7
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
8
KiCAD Schematic Viewer
KiCAD Schematic Viewer
KiCAD Schematic Viewer
Schematic Viewing and Analysis
$2.99
🎨 Graphics & Design
(0)
9
MetanoNord App
MetanoNord App
MetanoNord App
by BIT LIFE SOLUTIONS SRL
Free
🔧 Utilities
(0)
10
UEJN
UEJN
UEJN
by UNION DE EMPLEADOS DE LA JUSTICIA DE LA NACION
Free
🔧 Utilities
(0)
11
Electronics Kit
Electronics Kit
Electronics Kit
by Siu Yuen Ho
Free

This app offers a comprehensive suite of electronics tools and calculators for hobbyists and professionals. It includes features for component value calculation, pinout diagrams, and various electronic resources. Users can access a free version with ads or a PRO version for enhanced functionality and an ad-free experience.

Component value calculatorsExtensive pinout diagramsElectronic resource library
🔧 Utilities
(63)
free with in-app purchases
12
Breadpad - SPICE Simulator
Breadpad - SPICE Simulator
Breadpad - SPICE Simulator
Electronic circuit breadboard
Free

Design and simulate electronic circuits on an interactive digital breadboard. Analyze designs with virtual oscilloscopes and logic analyzers, and perform precise SPICE netlist simulations. Offers a free tier with core features and a premium subscription for advanced analysis and export.

Interactive digital breadboardSPICE netlist simulationVirtual oscilloscope and logic analyzer
🛠️ Developer Tools
(140)
freemium
13
Electronics Toolkit!
Electronics Toolkit!
Electronics Toolkit!
Dozens of tools in one app
Free

This app provides a comprehensive suite of tools and calculators for electronics engineers, students, and hobbyists. It includes numerous calculators for resistors, LEDs, capacitors, Ohm's law, and more, alongside useful tables and unit converters.

Resistor color code calculatorsLED resistor calculatorOhm's law calculator
📚 Education
(507)
free with in-app purchases
14
Electronics docs & calcs
Electronics docs & calcs
Electronics docs & calcs
Electronics lab in your pocket
Free

This app serves as a pocket-sized electronics lab, offering a comprehensive reference for components and circuits. It simplifies complex calculations for filters, inductors, and various circuit configurations, aiding both engineers and hobbyists in their design processes.

Electronic component referenceElectronic circuit referenceFilter design calculators
📚 Education
(13)
free
15
Electrical Wiring Simulator
Electrical Wiring Simulator
Electrical Wiring Simulator
Practice Anytime, Anywhere
Free
$19.99 | 100% OFF

Practice real-world electrical wiring skills with interactive, step-by-step simulations. Learn load control, parallel/series wiring, and troubleshooting without tools or risk. Ideal for students and aspiring electricians.

Step-by-step simulationsReal-world wiring practiceLoad control and switching
📚 Education
(49)
paid
16
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
17
Infinity Sketch
Infinity Sketch
Infinity Sketch
Grid-based schematic sketching
Free

Create precise schematics with a customizable grid and line editing system. Seamlessly integrate images as backgrounds or symbols to enhance your workflow. Enjoy a practically infinite canvas for unrestricted creativity, all offline and completely free.

Customizable grid for precisionImage import for backgrounds/symbolsPractically infinite canvas
🎨 Graphics & Design
(10)
free
18
Carmin
Carmin
Carmin
Automotive Wiring Diagrams
Free

Access a comprehensive library of regularly updated automotive electrical wiring diagrams for car repair and study. Includes videos and technical documents for research and reference.

Electrical wiring diagramsRegularly updated diagramsVideos library
🔍 Reference
(175)
free with in-app purchases
19
Digital Electronics Guide
Digital Electronics Guide
Digital Electronics Guide
Digital circuits made simple
Free

This app serves as a comprehensive reference for digital electronics, covering essential theory and practical guides. It's designed for students, engineers, and hobbyists to learn and prototype digital circuits with ease. Features include detailed information on logic gates, IC families, and various digital components.

Logic gate tutorialsIC reference data (TTL 7400, CMOS 4000)Digital circuit design and prototyping
📚 Education
(2)
ad-supported
20
SLD | Electrical diagrams
SLD | Electrical diagrams
SLD | Electrical diagrams
Draw schemes easily
$1.99

Easily create single-line electrical diagrams with a vast library of IEC and ANSI standard symbols. Drag and drop components to build your schemes, with options to save and edit in the PRO version.

Create single-line diagramsDrag and drop symbol placementIEC and ANSI standard symbols
📊 Productivity
(130)
free with in-app purchases