VoltSim - circuit simulator

Contains adsIn-app purchases
4.4
1.15K reviews
Content rating
Everyone
100K+
Downloads
Content rating
Everyone
In-App Purchases
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About this app

VoltSim is a realtime electronic circuit simulator like Multisim, SPICE, LTspice, Altium or Proto for circuit design with a better user experience.

VoltSim is a complete circuit app in which you can design circuit with various components and simulate an electric or digital circuit.

During simulation you can check voltage, current and many other variables. Check signals on multichannel oscilloscope or multimeter and tune your circuit in real time! You can also use VoltSim as logic circuit simulator and perform digital electronic analysis! This app will help you visualize how the voltage varies across the circuit and how current flows through it.

Voltsim is an electronic circuit simulator app with in-build logic circuit simulator and digital circuit simulator.

The examples provided with the app cover the basic functionality of all components.

Some app use-cases:
learn electronics
electronics circuit simulator
circuit simulator arduino (upcoming)
electric circuit simulator

You can report an issue or make component request at https://github.com/VoltSim/VoltSim/issues or just email us :)

Feature highlights:
* Material, intuitive user interface
* Unlimited workspace
* Animation of potential difference and current
* Automatic wire routing
* Manually adjust wire routing
* Automatic simulation
* Plot values in oscilloscope
* view values in multimeter
* Export circuits


Components:
+ Voltage sources (single and double terminal)
+ Current source
+ Resistor
+ Potentiometer
+ Capacitor (polarised and non-polarised)
+ Inductor (inductance)
+ Transformer
+ Diode
+ Zener diode
+ Tunnel Diode
+ LED
+ Transistor (NPN, PNP)
+ Mosfet (n, p)
+ Switches (SPST, Push, SPDT)
+ Operational amplifier
+ Voltmeter
+ Ammeter
+ ohmmeter
+ Fuse
+ Joint ( for creating cross joints in wire )
+ Text
+ Relay
+ Bulb
+ Digital gates (and, or, xor, nand, nor, xnor, not, logic in/out)
+ FlipFlops
+ 555 IC
+ schmitt trigger
+ ADC
+ DC Motor
+ SparkGap
+ Buzzer
+ Probe
+ OhmMeter
+ Speaker
+ LDR
+ Diac
+ oscillator
+ thyristor

Realtime Simulation: VoltSim offers realtime electronic circuit simulation, just like the industryleading tools Multisim, SPICE, LTspice, Altium, and Proto. Experience the magic of circuits coming to life as you build and test them.

UserFriendly Interface: Say goodbye to the steep learning curve! VoltSim provides a better user experience, making it accessible to beginners and experts alike. You don't need to be an electrical engineer to get started.

Comprehensive Component Library: Design circuits using a wide range of components at your disposal. From resistors and capacitors to microcontrollers and sensors, VoltSim has it all. Unleash your creativity with endless possibilities.

Electric and Digital Circuits: Whether you're interested in analog electric circuits or digital circuits, VoltSim caters to your needs. Create and simulate circuits with ease, and watch as your ideas evolve into functional systems.

DOWNLOAD VOLTSIM NOW AND SPARK YOUR CIRCUIT DESIGN PASSION!
Updated on
Apr 19, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
App activity
This app may collect these data types
App activity, App info and performance, and Device or other IDs
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

4.4
1.07K reviews
Ace Ganot
April 1, 2026
Thank you for creating the app. It's a great help. But could you make a tutorial on how to use the Dependent Sources. I tried to use CCVS, and I don't quite understand how to use it. The element labelled "A" is confusing. I tried to connect it to the resistor branch since it is where the current of the source depends on (based on the circuit I was trying to configure), but the circuit stops working. I hope you can answer this question, thank you
1 person found this review helpful
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risingphoenix
April 7, 2026
Hi, Thank you for the feedback! We have a component guide in the app (bottom bar) was that helpful? The A is the input current and in output formula you can refer it as "a". please email voltsim.app@gmail.com if you need more help. we will add more help videos as well.
Karan Saxena
April 14, 2026
amazing simulator that lets me experiment with circuits from the comfort of my phone. I really wish there was a community section that shares schematics. there is also one request I ask for , that is in the component guide to have a basic circuit for the respective component that shows how it works or at least it gives an idea.
2 people found this review helpful
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Scott Penny
March 30, 2026
Great app ... Put it on your phone for your kids instead of the mind-numbing junk they consume all day. For the BIG kids, it is straightforward and easy to use, great for proof of concept prior to wetting boards.
2 people found this review helpful
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What’s new

New Script chip component: with custom code editor
New IC library: 74XX TTL
New IC library: 40XX CMOS
New IC library: 78XX
New amoled theme
New components: LED Bar and Trimmer Capacitor
Import and export custom ICs
Fix component rotations