Comparison

Grover's algorithm vs Quantum

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

Head to head
About

Grover's algorithm

Features
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This app shows the geometrical representation of Grover's algorithm. Red circle represents the target state. Feel quantum computing!

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.

Screenshots

Grover's algorithm2 screens
Quantum4 screens

Verdict

The call

The clearest difference is in-app purchases: Grover's algorithm at none against Quantum's 6. Grover's algorithm also leads on iOS requirement (15.0 vs 26.0). On price, 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. Grover's algorithm asks for nothing beyond the download.

Scorecard2 real differences · 8 level
Grover's algorithm versus Quantum: the parameters behind the verdict, then further details
ParameterGrover's algorithmQuantum
PriceFreeFree
Rating—4.8 (133 ratings) — better
Positive reviews—85.7% of reviews
Number of ratings—133 — better
Update frequency—Every 5 weeks
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better26.0
Further details — not scored
Size0 MB32 MB
Age rating4+4+
DeveloperSungjun KimGEORGY OSTROBROD

In-app purchases

None

Grover's algorithm

No in-app purchases

3 purchases

Quantum

One-time3
  • Developer tip2 variants$1.99
  • Developer tip2 variants$3.99
  • Developer tip2 variants$5.99

Questions

Is Grover's algorithm free?
Grover's algorithm is free to download, with no in-app purchases.
Is Quantum free?
Quantum is free to download, with in-app purchases available.
Do Grover's algorithm or Quantum have ads?
Neither Grover's algorithm nor Quantum shows ads.

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