Comparison

Atomic Spectra vs Nuclear Wallet Cards

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

Head to head
About

Atomic Spectra

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
Read full description

Reference app for Strong Line Atomic Emission Spectra in the visible range of 380-740nm.  Can search by element name, symbol, or atomic number. Sort by name, symbol, or count of spectra lines. Drill down to an element and inspect the individual spectra lines.  Tap on the line to show it in the spectrum; tap on the spectrum to scroll to that line.

About

Nuclear Wallet Cards

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
Read full description

Explore nuclear data within Nuclear Wallet Cards, the comprehensive source for ground and isomeric state properties of every known nuclide. Based on the original reference booklet from the National Nuclear Data Center (NNDC) at Brookhaven National Laboratory (BNL), the Nuclear Wallet Cards app delivers authoritative nuclear data in an accessible and interactive format. Key Features: • Powerful Search & Filter: Quickly search by nucleus name or filter datasets by stability, atomic number, neutron count, atomic mass, excitation energy, half-life, abundance, mass excess, spin parity, and branching ratios. • Interactive Periodic Table: Navigate a dynamic periodic table with intuitive pan and zoom gestures. Tap any element to instantly view detailed isotopic datasets. • Reliable & Authoritative Data: Access precise nuclear data that supports research, education, and applied nuclear science. Whether you're a researcher, educator, or student, Nuclear Wallet Cards is your essential, user-friendly reference for all your nuclear data needs. Download now and start exploring nuclear data! Produced and maintained by the National Nuclear Data Center (NNDC) at Brookhaven National Laboratory (BNL).

Screenshots

Atomic Spectra4 screens
Nuclear Wallet Cards4 screens

Verdict

The call

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.

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

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard6 real differences · 4 level
Atomic Spectra versus Nuclear Wallet Cards: the parameters behind the verdict, then further details
ParameterAtomic SpectraNuclear Wallet Cards
Price$1.99Free — better
Rating5.0 (1 ratings)5.0 (3 ratings)
Positive reviews100.0% of reviews—
Number of ratings13 — better
Update frequencyEvery 19 monthsMonthly — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPad, Mac, Apple TV — betteriPhone, iPad
Requires iOS26.017.6 — better
Further details — not scored
Size7 MB9 MB
Age rating4+4+
DeveloperJim HaungsBrookhaven National Laboratory

Customer experience

Atomic Spectra

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Nuclear Wallet Cards

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Atomic Spectra

No in-app purchases

None

Nuclear Wallet Cards

No in-app purchases

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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