If you're tired of circuit apps behaving like toys And not just as tools, this guide is for you. On Android, there are options with different approaches: from real-time simulation platforms designed for tweaking parameters on the fly, to environments oriented toward digital logic. Here we tell you where each one shines and what limitations you may encounter.
Many newbies come from LTSpice and similar with the idea of practicing on mobile, but They are looking for something simpler, more intuitive and stable. to learn and validate ideas quickly. We'll compare PROTO, EveryCircuit, and logic circuit simulators for Android in detail, including community-mentioned alternatives like Droid Tesla and Icicuit, and a look at an emerging development called Voltsim.
What you should expect from an Android simulator
In mobility, reliability is king: that it doesn't close, that the device models are realistic, and that the interface allows for frictionless iteration. From there, it's important to consider numerical precision, the variety of analyses, the component library, and the flow being interactive enough to understand the circuit without struggling with menus.
It is also worth considering cost and limits of the free version, if there's a community or public library of circuits to inspire you, and if the app updates quickly in the event of errors. If your focus is digital logic, you might prefer an environment centered around gates and flip-flops; if your focus is analog, you'll want controlled sources, realistic transistors, and fine-grained transient analysis.
A distinctive plus on the mobile It's the interactivity: turning knobs live, seeing voltage/current animations, and changing parameters with your finger while the simulation runs. This is precisely where some Android apps have an advantage over classic PC tools.
Finally, check if The schematic editor makes wiring easy, if the built-in oscilloscope is capable, and if there are exports (PNG/JPG/PDF) or synchronization to share and document your designs.
EveryCircuit: A polished and highly educational interactive simulation
EveryCircuit bets on the tactile experience: You build the schematic, press play, and watch dynamic animations of voltage, current, and charge that help you understand what's happening at each node and component. While the simulation runs, you can adjust parameters with an analog control, and the circuit responds in real time; you can even "draw" arbitrary signals with your finger.
Underhood, integrates its own numerical engine Optimized for mobile use, it respects Ohm's and Kirchhoff's laws and realistic semiconductor models. The schematic editor incorporates automatic cable routing and a minimalist interface designed to reduce touches and increase productivity.
The app is popular among high school and college students, breadboard/PCB makers and radio amateurs because combines simplicity, innovation and power in your pocketPlus, it doesn't include ads, which is a welcome addition during long sessions.
In terms of analytics, EveryCircuit offers continuous (DC), AC with frequency sweep and transient, thus covering the basic needs to study operating points, frequency response and temporal behavior.
Featured Features
- Public Library growing community circuits.
- Animations of voltage waveforms and current flows, and of the charge in capacitors.
- Analog control in real time to tune parameters without stopping the simulation.
- Integrated oscilloscope and smooth switching between DC and transient.
- A single button play/pause to manage the simulation easily.
- Saving and loading of schematics and a mobile simulation engine built from the ground up.
- shake the phone to help start oscillators (nice and useful detail).
- Intuitive interface and without ads.
Components available
- Fonts and signal generators.
- Controlled sources: VCVS, VCCS, CCVS, CCCS.
- Liabilities: resistors, capacitors, inductors, transformers.
- Instrumentation: voltmeter, ammeter, ohmmeter.
- Actuators: DC motor, lamp.
- Adjustable: potentiometer.
- Commutation: SPST, SPDT switches, NO/NC push buttons, relays.
- Diodes: Zener, LED, RGB LED and rectifiers.
- Semiconductors: MOSFET and BJT.
- operational amplifier seems to be ideal.
- Digital logic: AND, OR, NOT, NAND, NOR, XOR, XNOR gates; D, T, JK flip-flops; SR flip-flops (NOR and NAND); 555 timer; counter; 7-segment display and decoder; ADC and DAC.
Business model and other details
EveryCircuit is free to use and has an optional one-time purchase of $14,99 which unlocks larger schemas, unlimited saves, and cloud syncing across devices. For community authentication, request access permission to your accountIt's a well-rounded tool for learning and experimenting without overwhelming yourself with unnecessary complexity.
PROTO: technical muscle, packages everywhere and sensor support
PROTO is a real-time simulator that lets you build circuits with a wide variety of components and measure voltages, currents, and multiple variables with a four-channel oscilloscope. You can pause and resume with a single button, copy components, learn with included examples, and share your designs. Plus, includes visual themes (Dark, Light, Ocean, Solarized) and exports to PNG, JPG and PDF.
Orientation is not just analog: PROTO serves as a logic circuit simulator and allows for digital analysis, so you can work from basic gates to counters, multiplexers, and registers. The team publishes the development on GitHub, where they accept bug reports and component requests, which accelerates the evolution of the app.
According to Play Store data, the app is listed under Education, version 1.40.0, updated on 09/20/2025, with over 3 million installs, 12.000 reviews and a average of 4,4 starsFor many Arduino projects, the Raspberry Pi or ESP32 can be a great help, and they have anticipated specific Arduino support in the future.
PROTO Base Components
- Fonts: DC, AC, square, triangle, sawtooth, pulse, and noise voltages; current source.
- Liabilities: resistance, potentiometer, capacitor (normal and polarized), inductor, transformer.
- Semiconductors and optoelectronics: diodes (rectifier, LED, Zener, Schottky), NPN/PNP transistors and N- and P-channel MOSFETs.
- Switching and actuators: SPST, relay, bulb, fuse.
- Analog: operational amplifier, NE555 timer.
- Digital: AND, NAND, OR, XOR, NOR, NXOR gates and inverter; logic input and output; voltage rail.
- Size: voltmeter and ammeter, ohmmeter.
- Special sensors/inputs: Photoresistor (uses the phone's light sensor), Accelerometer (uses the device's accelerometer), FM source.
- Others: memristor.
Extended packages
Analog package
- Tunnel diode, varicap, NTC thermistor.
- Center-tapped transformer.
- Schmitt trigger and Schmitt inverter.
- Solar cell, DIAC, TRIAC, thyristor, triode.
- Darlington NPN and PNP.
- Controlled sources: VCCS, VCVS, CCCS, CCVS.
- Optocoupler.
Digital package
- Adder, counter, latch.
- PISO and SIPO records.
- Seven-segment decoder and sequence generator.
- D, T and JK flip-flops.
- Multiplexer and demultiplexer.
Miscellaneous package
- Wobbulator, AM source.
- SPDT switch, DAC, antenna.
- Spark generator, LED bar, 7-segment LED.
- RGB LED and 14 segment LED.
- Ohmmeter, audio input and microphone.
- Device battery, DC motor.
- Diode bridge, crystal, 78xx voltage regulator.
- Frequency meter.
JavaScript Package
- Editor to write code with ES2020 interpreter.
- Accessing CI inputs and outputs from code.
- Four programmable custom ICs.
7400 TTL Package
- 7404 hexadecimal inverter; 7410 3-input triple NAND; 7414 Schmitt hexadecimal inverter.
- 7432 2-input quadruple OR; 7440 4-input dual-buffered NAND.
- 7485 4-bit magnitude comparator; 7493 binary counter.
- 744075 3-input triple OR; 741G32 2-input simple OR; 741G86 simple 2-input XOR.
4000 CMOS package
- Family available: 4000, 4001, 4002, 4011, 4016, 4017, 4023, 4025, 4081, 4511.
Sensor package
- Pressure, gyroscope, light.
- Magnetic field, proximity.
- Temperature and humidity
Recent developments and pace of improvements
The team has taken PROTO to Android 15 with edge-to-edge support and has announced a short survey to guide development. Notable fixes include a fix for the component tag issue when copying (issue #419), improved horizontal JavaScript interface (issue #415) and the attempted fix for a JS crash on the CAT S42 device (issue #411). This kind of transparency and rapid iteration is invaluable in the medium term.
Logic circuit simulators for Android: when to choose them and how PROTO and EveryCircuit fit together
If your goal is pure digital logic (gates, flip-flops, counters, registers, multiplexers), there are dedicated apps that simplify the learning curve and provide a very quick canvas for testing ideas. However, both PROTO and EveryCircuit include a robust set of digital components that covers gates, flip-flops, counters, and displays, so you can get quite advanced without leaving them.
PROTO stands out by offering complete TTL 7400 and CMOS 4000 families, as well as blocks such as adders, multiplexers, and PISO/SIPO registers, and even the option to create custom logic with JavaScript. EveryCircuit, for its part, integrates gates, flip-flops, 555 timers, ADC/DAC and 7-segment decoder, sufficient for academic and introductory cases.
In terms of teaching, the visualization with animations EveryCircuit's helps understand transitions and states, while PROTO shines in catalog coverage and sensor variety, allowing prototype mixed systems where the logic interacts with inputs from the phone (light, accelerometer, etc.).
Other alternatives mentioned by the community
In the opinions collected, there are those who consider that Droid Tesla is a step above of EveryCircuit in some respects, although preference may be a matter of taste and workflow. It is also noted that Icicuit would be the least favorable option on Android today, so it wouldn't be the first recommendation if you're looking for stability.
As a curiosity, a project has appeared on Google Play in early access called voltsim. Although it is in a very early stage, it is promising; the only reported drawback has been some inaccuracy when dragging components, but without any unexpected closures. If you're interested in trying new things, it might be worth keeping an eye on them.
Direct comparison: precision, flow and catalog
- Precision and simulation engineEveryCircuit boasts its own optimized interaction engine, with robust numerical methods and realistic models; PROTO offers a very high level of performance and is evolving rapidly, especially in analog with its extended package.
- Interactivity: both allow live parameter modification; EveryCircuit adds gestures such as “drawing” signals and shaking to start oscillators, with very clear animations; PROTO compensates with a four-channel oscilloscope and agile controls.
- Library and components: PROTO is a massive force in terms of breadth (TTL, CMOS, phone sensors, JavaScript for custom ICs, a huge analog assortment); EveryCircuit integrates the essential analog and digital tools with an active circuit community.
- Analysis: EveryCircuit includes DC, AC sweep, and transient; PROTO covers real-time analysis and adds tools such as wobbulator and frequency meter within your miscellaneous package.
- Experience and editor: both make wiring easier (EveryCircuit features automatic routing). Minimalist UI EveryCircuit's is outstanding; PROTO has improved its interface, including the horizontal view for JavaScript.
- Monetization and limits: EveryCircuit is free with a one-time purchase of $14,99 to lift limits and enable cloud; PROTO doesn't detail a specific paywall here and allows PNG/JPG/PDF export out of the box, which favors sharing and documenting.
- Stability and corrections: EveryCircuit is very stable overall; PROTO releases continuous fixes (Android 15, copied tag fixes, JS crash mitigation on specific devices), which gives trust in support.
- Use cases: If you want to “see” the circuit and learn with animations, EveryCircuit is ideal; if you need a wide arsenal of components, sensors and logic from standard families, PROTO is extremely difficult to match.
Recommendations according to your profile
- Beginning student and comes from LTSpice: EveryCircuit for its interactivity and visual clarity; you'll spend more time learning than fighting with menus.
- Makers with Arduino/RPi/ESP32: PROTO for its collection of sensors, exports, and digital/analog packages; it's a great fit for hybrid prototyping.
- Pure digital (logic): either of the two is good for initiation; if you need Specific TTL/CMOS and advanced blocks (PISO/SIPO registers, multiplexers), PROTO gives you more play.
- Who hates ads: EveryCircuit displays no ads and offers a reasonable one-time unlock.
- Novelty hunters: Keep an eye on PROTO for the pace of improvements, and try voltsim if you're interested in experimenting with early access.
For those who came here looking for an app that “doesn’t crash all the time” and doesn’t feel like a toy, The key is to adjust expectations to actual useEveryCircuit is superb as an interactive whiteboard for understanding circuits; PROTO is a Swiss Army knife with logic families, sensors, and exports that invite you to build complete systems. Together, they cover everything from basic learning to serious mobile prototyping, and with the continuous improvements they're receiving, the future looks bright for headache-free simulation on Android.