Comparison

Isotope Browser vs Muon Tracker

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

Head to head
About

Isotope Browser

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
Read full description

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.

About

Muon Tracker

Simulates the detection of high-energy muons from cosmic rays, visualizing their paths and energy in real-time. Explore particle physics and cosmic radiation with location-based data and exportable logs.

Highlights
  • Simulates cosmic muon detection
  • Visualizes muon tracks in 3D
  • Real-time rate and flux display
  • Location-based data and altitude adjustment
  • Exportable event logs (CSV)
  • Offline functionality
Features
Read full description

Muon Tracker brings the fascinating phenomenon of muon detection right to your device. Designed for science enthusiasts, students, and educators, this app simulates the detection of high-energy muons—particles created when cosmic rays collide with the upper atmosphere—and visualizes them in real time. What it does • Simulates the arrival of cosmic muons based on your current location (latitude, longitude, and altitude). • Accurately models muon flux and angular distribution, including diurnal and seasonal variations. • Detects and visualizes muon tracks with animated directional paths, energy estimates, and impact points on your screen. • Displays real-time rates and calculated flux in particles per second and per square meter. • Offers a data panel where you can explore and export historical events with timestamps, angles, and energy in GeV. Scientific accuracy - Muon Tracker is powered by a physics-based simulation engine that factors in: • Atmospheric depth modeling to vary muon rates with elevation • Geomagnetic latitude effects to reflect regional muon flux • Angular dependency using a cosine-squared distribution to simulate slant tracks • Randomized yet statistically valid energy distributions typical of atmospheric muons The simulation mimics real-world detection environments scaled to your device’s screen size. Whether you’re at sea level or on a mountain, the simulated flux adjusts accordingly. Ideal for • Physics students learning about particle physics and cosmic radiation • Educators demonstrating subatomic phenomena in classrooms • Science fans and curious minds exploring the universe from their pocket Features • Intuitive and elegant SwiftUI interface • Toggle between persistence mode (trails) and flash mode (instant hits) • Auto-switch between track visualization and point hits based on device orientation (vertical ↔ horizontal) • Muon tracks rendered in 3D space, dynamically responsive to device rotation • View location-based detection stats, including GPS position and altitude • Adjust altitude manually to observe its effect on muon flux • Real-time log of muon events, including incidence angle and particle energy • Plot angular distribution of muon track directions • Export your event log as a CSV file for deeper analysis • Works fully offline, with smart location-based initialization Step into the invisible universe. Download Muon Tracker and detect the particles that travel from space through you every second.

Screenshots

Isotope Browser4 screens
Muon Tracker4 screens

Verdict

The call

The clearest difference is price: Isotope Browser at Free against Muon Tracker's $1.99. Isotope Browser also leads on ratings volume (27 vs 1) and iOS requirement (11.0 vs 16.6). Muon Tracker's advantage is rating (5.0 vs 4.8). On ads, in-app purchases and device support 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

Isotope Browser is free to download; Muon Tracker costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Muon Tracker holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Isotope Browser has 27 ratings behind it against 1, so its average is the more settled of the two.

Scorecard5 real differences · 5 level
Isotope Browser versus Muon Tracker: the parameters behind the verdict, then further details
ParameterIsotope BrowserMuon Tracker
PriceFree — better$1.99
Rating4.8 (27 ratings)5.0 (1 ratings) — better
Positive reviews82.6% of reviews—
Number of ratings27 — better1
Update frequencyEvery 6 weeks—
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS11.0 — better16.6
Further details — not scored
Size8 MB1 MB
Age rating4+4+
DeveloperIAEAArpacore B.V.

Customer experience

Isotope Browser

All ratings27 ratings
Positive92.6%
Neutral3.7%
Negative3.7%
Written reviews23 reviews
Positive82.6%
Neutral13.0%
Negative4.3%

Muon Tracker

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Isotope Browser

No in-app purchases

None

Muon Tracker

No in-app purchases

Questions

Is Isotope Browser free?
Isotope Browser is free to download, with no in-app purchases.
Is Muon Tracker free?
Muon Tracker costs $1.99, with no in-app purchases.
Which has better reviews, Isotope Browser or Muon Tracker?
Muon Tracker is rated higher. Isotope Browser averages 4.8 out of 5 from 27 ratings, while Muon Tracker averages 5.0 from 1 ratings.
Do Isotope Browser or Muon Tracker have ads?
Neither Isotope Browser nor Muon Tracker shows ads.

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