# Isotope Browser vs INMM

The clearest difference is ratings volume: Isotope Browser at 27 against INMM's 3. Isotope Browser also leads on iOS requirement (11.0 vs 15.5). On price, rating, update cadence and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 4.8 for Isotope Browser against 4.7 for INMM. That said, the two scores are not equally well evidenced: Isotope Browser has 27 ratings behind it against 3, so its average is the more settled of the two.

Isotope Browser ships an update every 6 weeks, INMM every 2 months. The most recent releases landed on October 16, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Isotope Browser | INMM |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (27 ratings)](https://appshunter.io/ios/app/isotope-browser/id943890538/reviews)** | [4.7 (3 ratings)](https://appshunter.io/ios/app/inmm/id6749855665/reviews) |
| Number of ratings | **27** | 3 |
| Positive reviews | 82.6% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 2 months |
| Monetization | Free | Free |
| Size | 8 MB | 102 MB |
| Requires iOS | **11.0** | 15.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [IAEA](https://appshunter.io/developer/535500126) | [Institute of Nuclear Materials Management](https://appshunter.io/developer/783678557) |

## What reviewers say

### Isotope Browser

[App page](https://appshunter.io/ios/app/isotope-browser/id943890538)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### INMM

[App page](https://appshunter.io/ios/app/inmm/id6749855665)

Access conference schedules, speaker details, and presentation slides. Take notes directly on slides and share information with colleagues through in-app messaging.

**Highlights:** View conference schedules, Access speaker details, Review presentation slides, Take notes on presentations, Draw directly on slides, In-app messaging

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Isotope Browser free?

Isotope Browser is free to download, with no in-app purchases.

### Is INMM free?

INMM is free to download, with no in-app purchases.

### Which has better reviews, Isotope Browser or INMM?

Isotope Browser is rated higher. Isotope Browser averages 4.8 out of 5 from 27 ratings, while INMM averages 4.7 from 3 ratings.

### Do Isotope Browser or INMM have ads?

Neither Isotope Browser nor INMM shows ads.

### Which is updated more often, Isotope Browser or INMM?

Isotope Browser ships an update every 6 weeks, and INMM every 2 months. Most recently, Isotope Browser was updated on October 16, 2026 and INMM on October 9, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*