Comparison

Quantum vs GravyLensing

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

Head to head
About

Quantum

Explore the hidden world of particles with a real-time simulator. Model up to 10,000 particles and experiment with natural phenomena like crystallization and orbital mechanics. Customize interactions and visualize results dynamically.

Highlights
  • Real-time particle simulation
  • Model up to 10,000 particles
  • Simulate natural phenomena
  • Four distinct particle classes
  • Customizable rules editor
  • Dynamic visualizations
  • Interactive control
Features
Read full description

Experience the hidden world of particles Quantum is a real-time particle life sandbox for exploring emergent motion, artificial physics, and complex systems. Build fields with up to 10,000 particles, tune how classes attract or repel each other, and watch simple rules turn into flowing structures, swarms, or chaotic patterns. Why Quantum stands out: - Real-time particle simulation with four interacting particle classes. - Seamless 2D fields and perspective 3D volumes with touch rotation. - Rule editor for custom attraction and repulsion matrices. - Temperature, viscosity, solid/fluid edge behavior, and force tools. - Black hole and white hole tools for live interaction. - Save and load fields, rule sets, and color schemes. - P3 color support and vivid visual presets for generative art. Use Quantum as a physics toy, creative sandbox, teaching aid, or generative art lab. It is built for people who enjoy science, cellular automata, n-body systems, chaos, and beautiful simulations.

About

GravyLensing

Features
Read full description

GravyLensing brings gravitational lensing, the cosmic phenomenon where space-time bends around massive objects, into your hands. ESA's Euclid mission is mapping this effect across billions of galaxies to reveal the dark universe. Now you can explore that same physics yourself. Point your camera anywhere and watch space-time bend like light passing through a galaxy cluster. Built on the same Singular Isothermal Ellipsoid (SIE) models astronomers use, every lens is a real galaxy cluster observed by Hubble, JWST, and Euclid, faithfully recreated on your device. Features • Apply scientifically accurate gravitational lensing to your live camera feed, photos, or videos • Browse a gallery of real galaxy clusters, each with their own unique lensing signature • Touch and drag to position the lens exactly where you want it • Adjust distance to sweep from subtle warping to extreme Einstein rings • Record warped video or capture still images and save them to your photo library Inspired by ESA's Euclid mission to map the dark universe, GravyLensing puts the physics of warped spacetime in your pocket. No ads. No data collection. Just physics.

Screenshots

Quantum4 screens
GravyLensing4 screens

Verdict

The call

The clearest difference is in-app purchases: GravyLensing at none against Quantum's 6. GravyLensing also leads on iOS requirement (16.4 vs 26.0). On price, update cadence, ads 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

Both are free to download. Quantum sells 3 one-off in-app purchases. GravyLensing asks for nothing beyond the download.

UpkeepUpdate frequency

Quantum ships an update every 5 weeks, GravyLensing every 2 months. The most recent releases landed on September 23, 2026 and September 10, 2026 respectively.

Scorecard2 real differences · 8 level
Quantum versus GravyLensing: the parameters behind the verdict, then further details
ParameterQuantumGravyLensing
PriceFreeFree
Rating4.8 (133 ratings) — better—
Positive reviews85.7% of reviews—
Number of ratings133 — better—
Update frequencyEvery 5 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad
Requires iOS26.016.4 — better
Further details — not scored
Size32 MB7 MB
Age rating4+4+
DeveloperGEORGY OSTROBRODWILLIAM JOSEPH ROPER

In-app purchases

3 purchases

Quantum

One-time3
  • Developer tip2 variants$1.99
  • Developer tip2 variants$3.99
  • Developer tip2 variants$5.99
None

GravyLensing

No in-app purchases

Questions

Is Quantum free?
Quantum is free to download, with in-app purchases available.
Is GravyLensing free?
GravyLensing is free to download, with no in-app purchases.
Do Quantum or GravyLensing have ads?
Neither Quantum nor GravyLensing shows ads.
Which is updated more often, Quantum or GravyLensing?
Quantum ships an update every 5 weeks, and GravyLensing every 2 months. Most recently, Quantum was updated on September 23, 2026 and GravyLensing on September 10, 2026.

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