Comparison

Isotope Browser vs iSRS 2025

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Features
Read 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.

About

iSRS 2025

Features
Read full description

On behalf of the SRS leadership and the International Scientific Program Committee, we look forward to welcoming you to the beautiful Gold Coast, Australia, for the 26th International Symposium on Radiopharmaceutical Sciences, taking place in May 2025. Following the success of the 25th meeting in Honolulu, Hawaii, which brought our community together in a vibrant and engaging setting, we are excited to continue the tradition of excellence at iSRS 2025. The International Scientific Committee is working diligently to build a dynamic program that reflects the latest advances and future directions in radiopharmaceutical sciences. We are pleased to have a lineup of great keynote speakers, promising a rich and inspiring experience for all attendees.

Screenshots

Isotope Browser4 screens
iSRS 20253 screens

Verdict

The call

The clearest difference is iOS requirement: Isotope Browser at 11.0 against iSRS 2025's 13.4. 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Scorecard1 real difference · 9 level
Isotope Browser versus iSRS 2025: the parameters behind the verdict, then further details
ParameterIsotope BrowseriSRS 2025
PriceFreeFree
Rating4.8 (27 ratings) — better—
Positive reviews82.6% of reviews—
Number of ratings27 — better—
Update frequencyEvery 6 weeks—
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.0 — better13.4
Further details — not scored
Size8 MB57 MB
Age rating4+17+
DeveloperIAEASociety of Radiopharmaceutical Sciences

In-app purchases

None

Isotope Browser

No in-app purchases

None

iSRS 2025

No in-app purchases

Questions

Is Isotope Browser free?
Isotope Browser is free to download, with no in-app purchases.
Is iSRS 2025 free?
iSRS 2025 is free to download, with no in-app purchases.
Do Isotope Browser or iSRS 2025 have ads?
Neither Isotope Browser nor iSRS 2025 shows ads.

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