Isotope Browser vs Kmap Solver
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Isotope Browser
Access comprehensive nuclear data for over 4,000 nuclides and isomers. Explore interactive charts, filter by various criteria, and view detailed information for each nuclide. Data is sourced from reliable resources and available offline.
- Properties of over 4,000 nuclides and isomers
- Interactive Chart of Nuclides
- Periodic Table of Elements
- Filter by half-life, decay mode, radiation type, and energy
- Detailed nuclide information with web links
- Offline access to embedded database
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Provided by the Nuclear Data Section of the International Atomic Energy Agency, the app gives properties of more than 4 000 nuclides and isomers. A Chart of Nuclides, with zooming and tapping enabled, and a Periodic Table of Elements are included to allow easy selection and navigation. Filter criteria on half-life, decay mode, radiation type and energy can be selected. Summary data are presented in a scrolling list, with a details page for each nuclide containing web links to the data sources and further information such as level and decay schema. The filtered nuclides can be visualised on the Chart of Nuclides. Data are taken from the most recent and reliable sources, and optimal search-and-retrieve performance is achieved with an embedded database, meaning that no network connection is required.
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: Isotope Browser at Free against Kmap Solver's $3.99. Isotope Browser also leads on rating (4.8 vs 3.4) and update cadence (every 6 weeks vs every 9 months). On 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
Isotope Browser is free to download; Kmap Solver costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Isotope Browser holds the better App Store score, 4.8 against 3.4. Both are backed by a comparable volume of ratings — 27 and 8 respectively. Written reviews point the same way: 83% of Isotope Browser's written reviews are positive against 67% of Kmap Solver's.
Isotope Browser ships an update every 6 weeks, Kmap Solver every 9 months. The most recent releases landed on October 24, 2026 and October 29, 2026 respectively.
| Parameter | Isotope Browser | Kmap Solver |
|---|---|---|
| Price | Free — better | $3.99 |
| Rating | 4.8 (27 ratings) — better | 3.4 (8 ratings) |
| Positive reviews | 82.6% of reviews — better | 66.7% of reviews |
| Number of ratings | 27 — better | 8 |
| Update frequency | Every 6 weeks — better | Every 9 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 13.2 |
| Further details — not scored | ||
| Size | 8 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | IAEA | Adriano Moutinho |
Customer experience
Isotope Browser
Kmap Solver
In-app purchases
Isotope Browser
No in-app purchases
Kmap Solver
No in-app purchases
Questions
Is Isotope Browser free?
Is Kmap Solver free?
Which has better reviews, Isotope Browser or Kmap Solver?
Do Isotope Browser or Kmap Solver have ads?
Which is updated more often, Isotope Browser or Kmap Solver?
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