Apps Like CRUMB for iPhone and iPad
Build circuits in 3D with real components
Build and test electronic circuits in a 3D environment. Construct prototypes without physical components. Explore transistor functions and audio filtering. Access a component catalog for circuit design and experimentation.
CRUMB screenshots
Ranked alternatives
Showing 81–100 of 1,000 ranked alternatives.



Basic Electric Circuit
Willie van Schalkwyk
Learn basics and build simple circuits
Learn about circuits with interactive lessons on series and parallel configurations. Calculate voltage, current, and resistance. Simulate behavior and observe current flow visually.

Electrical Calculator lite
V PUGAZHENTHI
Calculate voltage, current, and resistance
Calculate values using resistor color codes, voltage, current, and resistance formulas. Perform impedance and RLC circuit analysis. Input values to get accurate results for engineering, wiring, and circuit design tasks.

Learn JavaScript Programming
Shahbaz Khan
And build web apps
With interactive tutorials and project-based lessons. Complete exercises to practice coding concepts. Access code examples and debug tools. Track progress and review lessons for reinforcement.

Rocket Lab
Smithsonian Institution
Design rockets and launch missions
Design rockets with customizable components like shape, propellant, and staging. Simulate suborbital, orbital, and escape velocity missions. Track performance metrics and adjust designs based on flight data.



Lineman's Reference - URD
Digital Apprentice LLC
Troubleshoot underground cables
Learn to isolate and hipot cable sections, troubleshoot underground outages, and replace pad-mounted transformers. Access fault indicators, cable isolation, and transformer isolation labs. Complete troubleshooting exercises with optional quizzes.


Electronics docs & calculators
Anas Abubakar
Design circuits with component references
Electrohelper allows users to access references for electronic components and circuits. It includes tools for calculating various filters like Butterworth, Sallen-Key, Chebychev, and Bessel. Users can view component details and circuit diagrams.

EE ToolKit PRO
Thomas Gruber
Design circuits, simulate, and analyze electronics
Manage electronic circuits with schematic design tools. Calculate resistor values and voltage drops. Simulate circuit behavior and analyze results. Access component datasheets and engineering formulas. Export designs and share project files.






GanElektri
Everton Borges
Solve circuits and analyze power
Solve electrical circuit problems with interactive exercises on Ohm's Law, Kirchhoff's Laws, and impedance calculations. Practice resistive circuits, node and loop analysis, and motor efficiency. Review complex numbers and power factor concepts.


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Apps are ranked by functional similarity, category fit, rating confidence, and popularity.