Kmap vs Circuit Simulator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Kmap
Simplify Boolean expressions and create Karnaugh maps for up to six variables. Offers both Sum of Products and Product of Sums, with support for 'don't-care' conditions and step-by-step solution viewing. Ideal for students and engineers in digital logic and computer engineering.
- Karnaugh map creation (2-6 variables)
- Automatic Boolean minimization
- Sum of Products (SOP) and Product of Sums (POS)
- Don't-care (X) support
- Truth table input
- Color-coded grouping overlays
- Step-by-step solution view
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Kmap helps students and engineers simplify Boolean expressions quickly and clearly. Create and solve 2 to 6 variable Karnaugh maps with automatic minimization and a clean, fast interface. Features: Sum of Products (SOP) and Product of Sums (POS) Don't-care (X) support Direct K-map input Truth table input Color-coded grouping overlays Step-by-step solution view Light and dark appearance Ideal for digital logic, computer engineering, and Boolean algebra coursework.
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
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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/
Screenshots
Verdict
The clearest difference is in-app purchases: Kmap at none against Circuit Simulator's 8. Kmap also leads on review sentiment (100% vs 77%) and rating (5.0 vs 4.7). Circuit Simulator's advantage is update cadence (every 6 weeks vs every 128 months) and ratings volume (87 vs 5). On price, ads, device support and iOS requirement 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. Kmap asks for nothing beyond the download.
Kmap holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Circuit Simulator has 87 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 100% of Kmap's written reviews are positive against 77% of Circuit Simulator's.
Kmap ships an update every 128 months, Circuit Simulator every 6 weeks. The most recent releases landed on October 4, 2026 and October 16, 2026 respectively.
| Parameter | Kmap | Circuit Simulator |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (5 ratings) — better | 4.7 (87 ratings) |
| Positive reviews | 100.0% of reviews — better | 76.9% of reviews |
| Number of ratings | 5 | 87 — better |
| Update frequency | Every 128 months | Every 6 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.1 — better | 15.3 |
| Further details — not scored | ||
| Size | 30 MB | 103 MB |
| Age rating | 4+ | 4+ |
| Developer | Richard Michalka | Sindhu Gopi |
Customer experience
Kmap
Circuit Simulator
In-app purchases
Kmap
No in-app purchases
Circuit Simulator
- Extensions Subscription$0.991 Month
- Sensors Extension$0.99
- Custom Chips Extension$1.99
- Instruments extension$2.99
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- Analog Extension$3.99
- Misc Extension$3.99
- Digital Extension$3.99
- Extension Pack$12.99
Questions
Is Kmap free?
Is Circuit Simulator free?
Which has better reviews, Kmap or Circuit Simulator?
Do Kmap or Circuit Simulator have ads?
Which is updated more often, Kmap or Circuit Simulator?
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