Circuit Simulator vs Digital Simulator bitGateLab
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Circuit Simulator
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 simulation
- Digital circuit simulation
- Voltage and current analysis
- Multichannel oscilloscope
- Multimeter tools
- Circuit design and tuning
Read full descriptionHide full description
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 circuits 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. T&C: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Digital Simulator bitGateLab
Read full descriptionHide full description
bitGateLab Digital is a digital electronics lab on your PC, phone or tablet: design a circuit with logic gates, watch it run live, get its truth table and Karnaugh map, check the timing diagram and build it on a 3D breadboard with step-by-step wiring. Everything works offline, with no account. DESIGN AND SIMULATE • AND, OR, NOT, NAND, NOR, XOR, XNOR and buffer gates; inputs, switches, push buttons, DIP banks, LEDs, LED strips and bar graphs, 7- and 16-segment displays, buzzer. • Sequential logic: D, T, JK and SR flip-flops, clock, crystal, counters, 555 timer, word generator, serial monitor. • Components: multiplexers, buses, ROM and RAM, H-bridge, motor, optocoupler, registers. • Group any part of the circuit into a reusable block with its own pins. • Undo and redo, copy and paste, named and colored wires, grid and automatic fit. TRUTH TABLE AND KARNAUGH • Type a boolean equation or fill in the truth table and turn it into a circuit with one tap. • Karnaugh maps from 2 to 8 variables, with groupings, canonical form, minterms or maxterms. • Step-by-step simplification naming each law applied, NAND form and Verilog export. • From the circuit back to the truth table or the Karnaugh map. TIMING DIAGRAM • Every input combination as a binary counter, with the hex value of each cycle. • A and B probes to measure intervals, X and Z levels, slopes and propagation delay per logic family (TTL, CMOS...). • Export to PDF. 3D BREADBOARD • Your circuit becomes a real build on its own: 74-series chips, resistors, LEDs, switches and wires on one or more breadboards. • Step-by-step guide hole by hole (for example 44i → 12i), bill of materials and net list. • Move chips, LEDs and switches where you like, recolor wires, isolate a net or a single wire, undo and redo. • Labels on every input and LED, free rotation, zoom and image capture. MICROCONTROLLERS AND PROGRAMMABLE LOGIC • MCU51 (8051-compatible) and MCU14 (14-bit): program in C or assembly, assemble and single-step with registers, ports, timers, interrupts and UART. • 16V8, 20V8 and 22V10 PLDs: equations, fuse map and JEDEC file. • Ready-made examples: counters, blinkers, traffic lights, serial communication and more. SHARE AND SAVE • Save your circuits with version history; share them as a file, a link or a QR code. • Export images as SVG, PNG, JPEG, WebP or PDF, and code as Verilog. • Number systems calculator, two's complement and binary operations with flags. FOR LEARNING AND TEACHING • Reference of boolean algebra laws and theorems. • State table and state diagram of your sequential circuits. • Large-button interface, comfortable on PCs, phones and tablets; light and dark themes. • 16 languages: Spanish, English, Portuguese (Brazil and Portugal), French, German, Italian, Russian, Polish, Dutch, Turkish, Chinese, Japanese, Korean, Arabic and Hindi. PRIVACY No account, no cloud and no ads: your circuits are stored only on your device. Something not working? Settings → Report a problem sends your message with the app version, device model and a technical log, with no personal data. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://juchabit.com/privacy-policy/
Screenshots
Verdict
The clearest difference is update cadence: Digital Simulator bitGateLab at every 2 days against Circuit Simulator's every 6 weeks. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Circuit Simulator sells 8 in-app purchases, starting at $0.99 per month and Digital Simulator bitGateLab sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.
Circuit Simulator ships an update every 6 weeks, Digital Simulator bitGateLab every 2 days. The most recent releases landed on October 12, 2026 and October 9, 2026 respectively.
| Parameter | Circuit Simulator | Digital Simulator bitGateLab |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (87 ratings) — better | — |
| Positive reviews | 76.9% of reviews | — |
| Number of ratings | 87 — better | — |
| Update frequency | Every 6 weeks | Every 2 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.3 | 15.0 — better |
| Further details — not scored | ||
| Size | 103 MB | 47 MB |
| Age rating | 4+ | 4+ |
| Developer | Sindhu Gopi | RUBEN ESTRADA MARMOLEJO |
In-app purchases
Circuit Simulator
- Extensions Subscription$0.991 Month
- Sensors Extension$0.99
- Custom Chips Extension$1.99
- Instruments extension$2.99
Show 4 moreShow fewer
- Analog Extension$3.99
- Misc Extension$3.99
- Digital Extension$3.99
- Extension Pack$12.99
Digital Simulator bitGateLab
- bitGateLab Digital Monthly$1.991 Month
- bitGateLab Digital Annual$14.991 Year
- bitGateLab Digital Lifetime$29.99
Questions
Is Circuit Simulator free?
Is Digital Simulator bitGateLab free?
Do Circuit Simulator or Digital Simulator bitGateLab have ads?
Which is updated more often, Circuit Simulator or Digital Simulator bitGateLab?
Other comparisons















