Kmap vs Kmap Solver
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.
Kmap Solver
This app solves Karnaugh Maps (Kmaps) for up to five variables, providing all possible solutions and displaying them on the map. It also generates four optimized output logic circuit versions, including traditional, common inverters, and NAND/NOR only circuits.
- Solves Kmaps for 2, 3, 4, or 5 variables
- Displays all possible Kmap solutions
- Shows four optimized logic circuit versions
- Traditional circuit output
- Common inverters circuit output
- NAND/NOR only circuit output
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This application solves Karnaugh Map, also called Kmap, for 2, 3, 4 or 5 variables. It is the only application I know that will provide (and show on Kmap) ALL possible kmap solutions. It will also shows four different versions of an optimized output logic circuit: a tradicional version, a circuit with common inverters and NAND/NOR only circuit.
Screenshots
Verdict
The clearest difference is price: Kmap at Free against Kmap Solver's $3.99. Kmap also leads on rating (5.0 vs 3.4) and review sentiment (100% vs 67%). Kmap Solver's advantage is update cadence (every 9 months vs every 128 months) and iOS requirement (13.2 vs 15.1). On ratings volume, 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
Kmap is free to download; Kmap Solver costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Kmap holds the better App Store score, 5.0 against 3.4. Both are backed by a comparable volume of ratings — 5 and 8 respectively. Written reviews point the same way: 100% of Kmap's written reviews are positive against 67% of Kmap Solver's.
Kmap ships an update every 128 months, Kmap Solver every 9 months. Both last shipped on October 4, 2026.
| Parameter | Kmap | Kmap Solver |
|---|---|---|
| Price | Free — better | $3.99 |
| Rating | 5.0 (5 ratings) — better | 3.4 (8 ratings) |
| Positive reviews | 100.0% of reviews — better | 66.7% of reviews |
| Number of ratings | 5 | 8 — better |
| Update frequency | Every 128 months | Every 9 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.1 | 13.2 — better |
| Further details — not scored | ||
| Size | 30 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | Richard Michalka | Adriano Moutinho |
Customer experience
Kmap
Kmap Solver
In-app purchases
Kmap
No in-app purchases
Kmap Solver
No in-app purchases
