SLD | Electrical diagrams - Electrical diagram creator
Effortlessly design electrical diagrams with customizable symbols & standards compliance for professional results in minutes!

- 4.24 Version
- 3.1 Score
- 335K+ Downloads
- In-app purchases License
- 3+ Content Rating
This application enables you to swiftly and efficiently create your own electrical installation diagrams. All you need to do is choose the symbol you wish to use and drag it to your preferred location.
- Symbols in accordance with IEC and ANSI standards for electrical engineering include:
Circuit breaker, plug, switch, disconnector, fuse, residual current device (RCD), contactor, motor, generator, socket, plug base, contact, normally open NO, normally closed NC, valve, level indicator, temperature sensor, delay and advance opening/closing devices, limit switch, handle, interlock, push button, mushroom button, lamp, grounding, energy meter, active (kWh) wattmeter, reactive (kvar) varimeter, transformer, voltage indicators, current indicators, three-phase windings, overvoltage devices, thermal relay, magnetic relay, coil, timer, minimum and maximum voltage settings, starter, rectifier, inverter, battery, converter, AC/DC and DC/DC converters, frequency meter, voltmeter, ammeter, ohmmeter, soft starter, variable resistors, reactance elements, diode, varistor, heater, fault indicators, star-delta transformer setup, insulation materials, regulators, connectors, conductors, phases, neutral lines, grounding, protective devices, fans, photovoltaic panels, control systems, load indicators, and the ability to enter text such as volts, amperes, watts, and energy readings.
# BASIC Version #
* You can design your single-line diagram using the same symbols available in the PRO Version.
* You are limited to a single scheme but can share it as an image, PDF, or file.
* Once a scheme is created, you cannot open another one since they are not saved.
* This version includes advertisements.
# PRO Version # (1 - In-App Purchases)
* You will have the ability to open, edit, and save your schemes.
* Access additional examples.
* This version is ad-free.
* Are you interested in translating the symbol texts and receiving a coupon for access to premium features? Please reach out!
* More examples and resources are available elsewhere.
* Instructional videos demonstrate various functions across different languages.
A Powerhouse Tool for Effortless Electrical Drafting
Having extensively used this application to design complex electrical installations for commercial projects, I've been thoroughly impressed by its intuitive workflow and professional depth.
The seamless drag-and-drop interface transforms schematic creation from a tedious chore into a truly efficient process.
What resonates most is the sheer breadth of standards-compliant symbols – finding precisely the right IEC or ANSI component, whether it's a specialized thermal relay, a photovoltaic panel, or a star-delta transformer setup, feels instantaneous.
This comprehensive library eliminates frustrating searches through external references, allowing me to focus purely on the engineering logic itself.
The ability to directly annotate schematics with text values like volts and amps further streamlines documentation.
While the BASIC version serves well for quick sketches or single-diagram tasks, upgrading to PRO felt essential for serious work; the ability to save, reopen, and edit multiple schematics without ads makes it indispensable.
It's become my go-to solution for creating clear, professional diagrams with remarkable speed and accuracy.
Your Top Questions Answered:
Is the PRO upgrade worth it? Absolutely, if you work with multiple schematics or need to revise designs. Saving/loading projects and removing ads significantly enhances productivity.
Can I access my diagrams on different devices? Currently, schemes are stored locally on the device used to create them unless manually exported/shared.
Does it support specific industry standards? Yes, the symbols strictly adhere to IEC and ANSI standards for electrical engineering symbols.
Is there learning material available? Yes, instructional videos demonstrating various functions are accessible within the application or the developer's resources.
- Version4.24
- UpdateJul 16, 2025
- DeveloperÁngel Martínez
- CategoryProductivity
- Requires AndroidAndroid 5.0+
- Downloads335K+
- Package Namecom.xlingenieria.unifilar
- Signature5a906afd072234a091c6a291272b1ed5
- Available on
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14.94 MB
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14.94 MB
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14.94 MB
User-friendly interface
Broad range of useful symbols
Ability to create professional diagrams quickly
Smooth performance and minimal bugs
Convenient for mobile use
Helpful for beginners in electrical diagramming
Supports sharing documents easily
Frequent updates addressing user feedback
Limited functionality in the free version
Difficulty saving files reliably
Lack of intuitive navigation and options
Missing key electrical symbols
Clunky menus make item selection challenging
Inconsistent text placement and rotation issues
Potential for losing data if app fails
Not suitable for complex automation schematics