Comparison

Particle Zoo vs Atomizer AR

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

Head to head
About

Particle Zoo

Explore the fundamental building blocks of the universe with this pocket guide to subatomic particles. Learn about the diverse particles that constitute matter and energy, inspired by a popular plush toy collection.

Highlights
  • Subatomic particle information
  • Pocket-sized reference
  • Educational tool
  • Inspired by plush toys
Features
Read full description

Would you like to get to know the particles that make up our universe a little better? Then carry this convenient list of subatomic particles in your pocket! Based on The Particle Zoo plushies.

About

Atomizer AR

Visualize atomic and molecular orbitals in 3D, render electron density clouds, and explore molecules in augmented reality. Calculate molar mass, balance equations, and sketch molecules in 2D.

Highlights
  • 3D atomic and molecular orbital visualization
  • Electron density cloud rendering
  • WebXR augmented reality exploration
  • Molecule control via gyroscope
  • Molar mass calculation
  • Equation balancing and stoichiometry
  • 2D molecule sketching
Features
Read full description

Atomizer AR turns your iPhone or iPad into a portable quantum chemistry lab. Visualize atomic and molecular orbitals in 3D, render electron density clouds, and step into immersive WebXR augmented reality where molecules sit on your desk at real-world scale. — WHAT YOU CAN DO — • Explore atomic orbitals computed from real hydrogenic wavefunctions: 1s, 2p, 3d, 4f and beyond, with adjustable shell glow and Bohmian trajectory animation. • View any molecule's molecular orbitals (HOMO, LUMO, intermediates) computed via PySCF on the cloud, then rendered as interactive isosurfaces. • See ball-and-stick models in WebXR augmented reality. Tap "View in AR", point at a flat surface, place the molecule on a table, then pinch to scale and drag to rotate. • Pair your phone with the desktop using Atomizer Remote: enter a 4-letter code, then tilt your phone to control the on-screen molecule with your gyroscope. Live preview streams back to your phone in real time. • Browse 40+ molecules — water, glucose, caffeine, benzene, ammonia, ethanol, methane, sulfuric acid and more — with energy diagrams, dipole arrows, lone pairs (VSEPR) and MO correlation diagrams. • Calculate molar mass live from any chemical formula, including parenthesised groups like Ca(OH)₂ and (NH₄)₂SO₄, with per-element breakdown. • Balance equations, run stoichiometry, sketch molecules in 2D, and explore reaction pathways. — SUBSCRIPTIONS — Free: 5 molecule renders per period. All calculator tools and full periodic table. Californium Pass — $2.99/month. 50 renders monthly, priority compute queue. Einsteinium Pass — $6.99/month. Unlimited renders, GLTF export for AR/3D printing, protein visualization, priority support. Auto-renews unless cancelled at least 24 hours before the period ends. Cancel anytime in Settings → Apple ID → Subscriptions. Subscriptions sync across iPhone, iPad, and electronvisual.org. Privacy: https://electronvisual.org/privacy Terms: https://electronvisual.org/terms

Screenshots

Particle Zoo2 screens
Atomizer AR4 screens

Verdict

The call

The clearest difference is in-app purchases: Particle Zoo at none against Atomizer AR's 4. Particle Zoo also leads on ratings volume (48 vs 3) and iOS requirement (11.1 vs 15.2). Atomizer AR's advantage is review sentiment (100% vs 81%) and update cadence (every 10 days vs every 3 weeks). On price, rating and ads 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

Both are free to download. Atomizer AR sells 4 in-app purchases, starting at $4.99 per month. Particle Zoo asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 3.9 for Particle Zoo against 4.0 for Atomizer AR. That said, the two scores are not equally well evidenced: Particle Zoo has 48 ratings behind it against 3, so its average is the more settled of the two. Written reviews are what separate them: 81% of Particle Zoo's written reviews are positive against 100% of Atomizer AR's.

UpkeepUpdate frequency

Particle Zoo ships an update every 3 weeks, Atomizer AR every 10 days. The most recent releases landed on October 31, 2026 and November 3, 2026 respectively.

Scorecard7 real differences · 3 level
Particle Zoo versus Atomizer AR: the parameters behind the verdict, then further details
ParameterParticle ZooAtomizer AR
PriceFreeFree
Rating3.9 (48 ratings)4.0 (3 ratings) — better
Positive reviews81.1% of reviews100.0% of reviews — better
Number of ratings48 — better3
Update frequencyEvery 3 weeksEvery 10 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Mac, Apple Watch, Vision Pro — better
Requires iOS11.1 — better15.2
Further details — not scored
Size14 MB137 MB
Age rating4+4+
Developerrickbdotcom LLCWonmo Seong

Customer experience

Particle Zoo

All ratings45 ratings
Positive68.9%
Neutral8.9%
Negative22.2%
Written reviews95 reviews
Positive81.1%
Neutral6.3%
Negative12.6%

Atomizer AR

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Particle Zoo

Reported bugs

6 issues
  • Links don't work
  • App no longer works on older iOS versions (iOS 11, iOS 6)
  • Higgs Boson listed as theoretical
  • Some buttons do not work
  • App crashes on older devices
Show 1 more
  • List scrolls to the top when selecting a particle

Requested features

9 requests
  • Add more particles (Build A Baryon, etc.)
  • Animate the critters
  • Bring back removed features (Build A Baryon, beta decay simulator)
  • Update Higgs Boson information
  • Add more interactions (strong, electromagnetic)
Show 4 more
  • More in-depth information on particles
  • Fix navigation bugs (list scrolling)
  • Add space time content
  • Make critters animated

Atomizer AR

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Particle Zoo

No in-app purchases

4 purchases

Atomizer AR

Subscriptions4
  • Californium Pass$4.991 Month
  • Einsteinium Pass$12.991 Month
  • Californium Yearly7 Days trial$39.991 Year
Show 1 more
  • Einsteinium Yearly7 Days trial$99.001 Year

Questions

Is Particle Zoo free?
Particle Zoo is free to download, with no in-app purchases.
Is Atomizer AR free?
Atomizer AR is free to download, with in-app purchases available.
Which has better reviews, Particle Zoo or Atomizer AR?
Atomizer AR is rated higher. Particle Zoo averages 3.9 out of 5 from 48 ratings, while Atomizer AR averages 4.0 from 3 ratings.
Do Particle Zoo or Atomizer AR have ads?
Neither Particle Zoo nor Atomizer AR shows ads.
Which is updated more often, Particle Zoo or Atomizer AR?
Particle Zoo ships an update every 3 weeks, and Atomizer AR every 10 days. Most recently, Particle Zoo was updated on October 31, 2026 and Atomizer AR on November 3, 2026.

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