# Atomic Spectra vs Nuclear Wallet Cards

The clearest difference is price: Nuclear Wallet Cards at Free against Atomic Spectra's $1.99. Nuclear Wallet Cards also leads on update cadence (monthly vs every 19 months) and ratings volume (3 vs 1). Atomic Spectra's advantage is device support (4 vs 2). On rating, ads and in-app purchases there is nothing between them.

Nuclear Wallet Cards is free to download; Atomic Spectra costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for Atomic Spectra against 5.0 for Nuclear Wallet Cards. Both are backed by a comparable volume of ratings — 1 and 3 respectively.

Atomic Spectra ships an update every 19 months, Nuclear Wallet Cards monthly. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Atomic Spectra | Nuclear Wallet Cards |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/atomic-spectra/id6444901660/reviews) | [5.0 (3 ratings)](https://appshunter.io/ios/app/nuclear-wallet-cards/id6741994617/reviews) |
| Number of ratings | 1 | **3** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 19 months | **Monthly** |
| Monetization | Paid | **Free** |
| Size | 7 MB | 9 MB |
| Requires iOS | 26.0 | **17.6** |
| Devices | **iPhone, iPad, Mac, Apple TV** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Jim Haungs](https://appshunter.io/developer/1498282259) | [Brookhaven National Laboratory](https://appshunter.io/developer/1796322722) |

## What reviewers say

### Atomic Spectra

[App page](https://appshunter.io/ios/app/atomic-spectra/id6444901660)

This reference app provides detailed information on strong line atomic emission spectra within the visible range. Users can search for elements by name, symbol, or atomic number and inspect individual spectra lines. It offers interactive features to visualize and navigate spectral data.

**Highlights:** Visible range spectra (380-740nm), Search by element name, symbol, or atomic number, Sort by name, symbol, or spectra line count, Inspect individual spectra lines, Interactive spectrum visualization

**Features:** Vision Pro support

**In-app purchases:** none


### Nuclear Wallet Cards

[App page](https://appshunter.io/ios/app/nuclear-wallet-cards/id6741994617)

Access comprehensive nuclear data for every known nuclide in an interactive format. Explore ground and isomeric state properties with powerful search and filtering tools. This authoritative reference is ideal for researchers, educators, and students.

**Highlights:** Comprehensive nuclide data, Powerful search and filter, Interactive periodic table, Authoritative data source, User-friendly interface

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Atomic Spectra free?

Atomic Spectra costs $1.99, with no in-app purchases.

### Is Nuclear Wallet Cards free?

Nuclear Wallet Cards is free to download, with no in-app purchases.

### Which has better reviews, Atomic Spectra or Nuclear Wallet Cards?

Atomic Spectra and Nuclear Wallet Cards are both rated 5.0 out of 5 on the App Store, from 1 and 3 ratings respectively.

### Do Atomic Spectra or Nuclear Wallet Cards have ads?

Neither Atomic Spectra nor Nuclear Wallet Cards shows ads.

### Which is updated more often, Atomic Spectra or Nuclear Wallet Cards?

Atomic Spectra ships an update every 19 months, and Nuclear Wallet Cards monthly. Most recently, Atomic Spectra was updated on November 3, 2026 and Nuclear Wallet Cards on October 30, 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.*