# Isotope Browser vs NMT Boards Prep

The clearest difference is rating: NMT Boards Prep at 5.0 against Isotope Browser's 4.8. Isotope Browser's advantage is ratings volume (27 vs 9) and iOS requirement (11.0 vs 26.2). On price, update cadence, ads and in-app purchases there is nothing between them.

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

NMT Boards Prep holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 27 and 9 respectively.

Isotope Browser ships an update every 6 weeks, NMT Boards Prep every 5 weeks. The most recent releases landed on October 16, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Isotope Browser | NMT Boards Prep |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (27 ratings)](https://appshunter.io/ios/app/isotope-browser/id943890538/reviews) | **[5.0 (9 ratings)](https://appshunter.io/ios/app/nmt-boards-prep/id6760935763/reviews)** |
| Number of ratings | **27** | 9 |
| Positive reviews | 82.6% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 5 weeks** |
| Monetization | Free | Free |
| Size | 8 MB | 30 MB |
| Requires iOS | **11.0** | 26.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [IAEA](https://appshunter.io/developer/535500126) | [Leonid LIPKOVICH](https://appshunter.io/developer/1883118066) |

## 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


### NMT Boards Prep

[App page](https://appshunter.io/ios/app/nmt-boards-prep/id6760935763)

Prepare for Nuclear Medicine Technology and CT Registry board exams with comprehensive study tools. Access quizzes, flashcards, mock exams, and expert advice to help you pass on your first attempt.

**Highlights:** Board-style quizzes with explanations, Flashcards for concept reinforcement, Timed mock exams, Spaced repetition review, Technologist insights and advice, Community connection features

**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 NMT Boards Prep free?

NMT Boards Prep is free to download, with no in-app purchases.

### Which has better reviews, Isotope Browser or NMT Boards Prep?

NMT Boards Prep is rated higher. Isotope Browser averages 4.8 out of 5 from 27 ratings, while NMT Boards Prep averages 5.0 from 9 ratings.

### Do Isotope Browser or NMT Boards Prep have ads?

Neither Isotope Browser nor NMT Boards Prep shows ads.

### Which is updated more often, Isotope Browser or NMT Boards Prep?

Isotope Browser ships an update every 6 weeks, and NMT Boards Prep every 5 weeks. Most recently, Isotope Browser was updated on October 16, 2026 and NMT Boards Prep on September 20, 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.*