Comparison

Map Projections vs Quantum Horizon

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

Head to head
About

Map Projections

Features
Read full description

Map Projections allows you to see how the choice of map projections affects how we view the world around us

About

Quantum Horizon

Features
Read full description

Quantum Horizon is a cinematic observatory for relativity and quantum physics β€” built so you can feel spacetime, not only read about it. Fall toward a black hole and watch minutes become years. Drag masses across the Milky Way and catch Einstein rings. Prepare a wave function, then collapse it. Entangle two particles and run a real Bell test. Leave near light speed and return younger than the world that waited. WHERE SPACETIME BENDS β€’ Black Hole Time Warp β€” Schwarzschild gravitational time dilation outside a horizon. Slide closer and watch Earth race ahead while your clock crawls. β€’ Lensing Observatory β€” Interactive gravitational lensing across a Milky Way sky. Bend light, hunt rings, add companions that can fall into the well. β€’ Relativistic Journey β€” Special relativity with live Ξ³. Feel the twin paradox as two ages, not a textbook footnote. β€’ You vs Others β€” Two ages. One voyage. See who aged less after a near-light trip. QUANTUM MEASUREMENT β€’ Wave Function Collapse β€” Write two futures, set amplitudes, measure with the Born rule. One path becomes real. β€’ Branching Histories β€” Parallel stories, optional relativistic aging, one collapse that chooses a history. β€’ Entanglement Lab β€” Bell states (Φ± / Ψ±), Alice & Bob detector angles, running correlations, and a CHSH test that can beat the classical limit β€’ Live quantum link β€” collapse and entanglement sampling can reach a real-time quantum device β€” so the decisive moment is tied to genuine quantum hardware. MADE TO FEEL REAL Textbook formulas power the tools: Lorentz Ξ³, Schwarzschild dilation, thin-lens geometry, Born-rule probabilities, and Bell correlators from quantum mechanics. Beautiful, playable, and built for curious minds.

Screenshots

Map Projections3 screens
Quantum Horizon4 screens

Verdict

The call

The clearest difference is ads: Map Projections at none against Quantum Horizon's shown. Quantum Horizon's advantage is iOS requirement (15.0 vs 17.0). On price, in-app purchases and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Scorecard2 real differences Β· 4 level
Map Projections versus Quantum Horizon: the parameters behind the verdict, then further details
ParameterMap ProjectionsQuantum Horizon
PriceFreeFree
Update frequencyEvery 6 monthsβ€”
AdsNo β€” betterYes
In-app purchasesNoNo
DevicesiPhone, iPadiPhone, iPad, iPod β€” better
Requires iOS17.015.0 β€” better
Further details β€” not scored
Size11 MB104 MB
Age rating4+4+
DeveloperHans Harck Toenning17404998032Abdulrazaq Alonazi

In-app purchases

None

Map Projections

No in-app purchases

None

Quantum Horizon

No in-app purchases

Questions

Is Map Projections free?
Map Projections is free to download, with no in-app purchases.
Is Quantum Horizon free?
Quantum Horizon is free to download, with no in-app purchases.
Do Map Projections or Quantum Horizon have ads?
Quantum Horizon shows ads; Map Projections does not.

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