Isotope Browser vs CBRNResponder
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
Read full descriptionHide full description
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.
CBRNResponder
This app offers free tools for logging, transmitting, storing, and analyzing environmental monitoring data. It provides a secure cloud environment for user data access and requires registration for full functionality.
- Environmental data logging
- Data transmission capabilities
- Secure cloud data storage
- Data analysis tools
- Data presentation features
Read full descriptionHide full description
CBRNResponder provides free software tools for logging, transmitting, storing, analyzing, and presenting environmental radiological, chemical, and biological monitoring data. Data is stored in a secure cloud environment accessible only by the user. To register for an account and to obtain further information, please go to www.CBRNresponder.net
Screenshots
Verdict
The clearest difference is update cadence: CBRNResponder at weekly against Isotope Browser's every 6 weeks. Isotope Browser's advantage is rating (4.8 vs 4.5) and ratings volume (27 vs 6). On price, ads, in-app purchases and monetization model 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. Neither carries in-app purchases, so what you see is what you pay.
Isotope Browser holds the better App Store score, 4.8 against 4.5. Both are backed by a comparable volume of ratings — 27 and 6 respectively.
Isotope Browser ships an update every 6 weeks, CBRNResponder weekly. The most recent releases landed on September 21, 2026 and September 15, 2026 respectively.
| Parameter | Isotope Browser | CBRNResponder |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (27 ratings) — better | 4.5 (6 ratings) |
| Positive reviews | 82.6% of reviews | — |
| Number of ratings | 27 — better | 6 |
| Update frequency | Every 6 weeks | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 8 MB | 27 MB |
| Age rating | 4+ | 4+ |
| Developer | IAEA | Attainx Inc. |
Customer experience
Isotope Browser
CBRNResponder
In-app purchases
Isotope Browser
No in-app purchases
CBRNResponder
No in-app purchases
Questions
Is Isotope Browser free?
Is CBRNResponder free?
Which has better reviews, Isotope Browser or CBRNResponder?
Do Isotope Browser or CBRNResponder have ads?
Which is updated more often, Isotope Browser or CBRNResponder?
Other comparisons
