# Isotope Browser — Nuclides Chart - Nuclear Data

> Nuclear data reference for nuclides and isomers with interactive charts. (iPhone/iPad app by International Atomic Energy Agency.)

- Source: https://appshunter.io/ios/app/isotope-browser/id943890538 (this page in markdown: same URL + `.md`)
- Developer: [International Atomic Energy Agency](https://appshunter.io/developer/535500126)
- Category: Education, Reference
- Price: Free
- Rating: 4.80/5 from 25 App Store ratings · 23 written reviews indexed
- Age rating: 4+
- Requires: iOS 11.0 · 8 MB
- Languages: American English, Arabic, French (France), German (Germany), Italian, Japanese, Russian, Chinese (Simplified, China), Slovenian, European Spanish and 1 more
- Released: 2014-12-04
- Data updated: 2026-06-02
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/isotope-browser/id943890538/reviews.md

## What is Isotope Browser?

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.

## Key features

- 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

## Recent user reviews (10 of 23)

All indexed reviews: https://appshunter.io/ios/app/isotope-browser/id943890538/reviews.md

### 5/5 — Informational app!

*2026-01-22, version 3.57.89*

Great app. If you are interested in physics this is the app for you! You can browse every known isotope and see half life, particle energy, etc. I have a suggestion to add isotope of the day. It would be funny and cool to see an advertised isotope every day.

### 4/5 — Karte

*2025-05-11, version 3.57.88*

Ist verwirrend weil anders als Original Karte

### 5/5 — Very helpful

*2025-01-02, version 3.57.88*

I’m 14 and I was using this to study isotopes 
It was a little bit hard to get the hang of it and find out where all the information is but it saved me hours of research compared to Google 

The only thing it needs is more sorting options It would be really helpful to have Where I can sort high to low barns as I’m really interested in complete neutron capture

### 5/5 — Solid database, great usability

*2024-12-12, version 3.56.88*

A solid tool for any nuclear physicist.

### 4/5 — Gute App, Schrift, teilweise zu klein!

*2024-11-22, version 3.56.88*

Das ist eine tolle App mit sehr vielen und verlässlichen Daten! Allerdings ist man ohne die Bildschirm Lupe manchmal hilflos! Ich würde mir wünschen, dass die Schriftgröße bei der Protonen/Neutronenzahl ein wenig größer ist oder diese Seite mit zwei Fingern zoombar ist.

### 5/5 — Easy access to data - wonderful application

*2022-01-05, version 3.43.77*

Thank you for this wonderful application!
A few small things could be improved like the search for all nuclides when you want to see the entire chart with colors (after a first search of an isotope was made).  Access to * is not so convenient on a phone. 
Also, the help could have been more detailed.
Overall, it is a wonderful and very useful application!

### 2/5 — Lol

*2021-12-08, version 3.43.77*

Monika Fluge

### 5/5 — Sehr gut diese

*2021-12-08, version 3.43.77*

Sehr gut

### 5/5 — Great app

*2020-04-06, version 3.35.73*

It’s nice to have a lightweight interactice map of nuclides on my mobile device. A very useful and great app.

### 5/5 — Nice App

*2019-10-30, version 3.28.72*

I worked in the industry for over 30 years. This is a really nice app. I haven’t used it extensively yet but the initial impression is very good.

## Frequently asked questions about Isotope Browser

### What is the Isotope Browser?

The Isotope Browser is a mobile application that provides properties for over 4,000 nuclides and isomers. It includes interactive charts and detailed information, sourced from the International Atomic Energy Agency.

### Does Isotope Browser require an internet connection?

No, the Isotope Browser does not require a network connection. It utilizes an embedded database for optimal search and retrieve performance, allowing for offline access to all data.

### What kind of data can I filter in Isotope Browser?

You can filter nuclides by criteria such as half-life, decay mode, radiation type, and energy. This allows for precise selection and visualization of specific nuclear data.

### How is the data in Isotope Browser sourced?

The data is taken from the most recent and reliable sources, provided by the Nuclear Data Section of the International Atomic Energy Agency. Each nuclide's details page includes web links to the original data sources.

### What devices is Isotope Browser available on?

Isotope Browser is supported on iPhone, iPad, and iPod devices. It is designed for iOS users seeking nuclear data on the go.

### How often is Isotope Browser updated?

The app was last updated on August 21, 2025, to version 3.57.89. This indicates a commitment to maintaining and improving the application with current data and features.

### What is the age rating for Isotope Browser?

Isotope Browser has an age rating of 4+. This makes it suitable for a wide range of users, including younger students learning about nuclear science.

### Does Isotope Browser have ads?

No, Isotope Browser is ad-free. Users can access all its features and data without any advertisements interrupting their experience.

## Version history (last 5 releases)

### 3.57.89 — 2025-08-21

Ra-229 decay mode correction

### 3.57.88 — 2024-12-16

Corrections to Arabic and Chinese translation. Thanks to ones that contributed !

### 3.56.88 — 2024-10-22

Database update

### 3.56.86 — 2024-10-09

* Correction to U-229 data
* Better display of magic numbers on the Chart

### 3.55.85 — 2024-08-01

Minor update

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-02.*