WATCHe vs Quantum Horizon
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
WATCHe
Explore the intricate world of mechanical watches with this application. Discover their components, understand the inner workings of their mechanisms, and even see the skeletonized movements. It's an educational tool for anyone curious about the engineering behind timekeeping.
- Discover mechanical watches
- Understand mechanism functioning
- View watch components
- Explore skeleton watch movements
- Check the time
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The first mechanical watch on electronic watch. This application allows to discover mechanical watches. It also helps to understand the functioning of the mechanism. It is also possible to see all the components of the watch, see movements To penetrate the secrets of the heart of the mechanical skeleton watch . And of course it is possible for you to check the time.
Quantum Horizon
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Quantum Horizon is a cinematic observatory for relativity and quantum physics — 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 • Black Hole Time Warp — Schwarzschild gravitational time dilation outside a horizon. Slide closer and watch Earth race ahead while your clock crawls. • Lensing Observatory — Interactive gravitational lensing across a Milky Way sky. Bend light, hunt rings, add companions that can fall into the well. • Relativistic Journey — Special relativity with live γ. Feel the twin paradox as two ages, not a textbook footnote. • You vs Others — Two ages. One voyage. See who aged less after a near-light trip. QUANTUM MEASUREMENT • Wave Function Collapse — Write two futures, set amplitudes, measure with the Born rule. One path becomes real. • Branching Histories — Parallel stories, optional relativistic aging, one collapse that chooses a history. • Entanglement Lab — Bell states (Φ± / Ψ±), Alice & Bob detector angles, running correlations, and a CHSH test that can beat the classical limit • Live quantum link — collapse and entanglement sampling can reach a real-time quantum device — so the decisive moment is tied to genuine quantum hardware. MADE TO FEEL REAL Textbook formulas power the tools: Lorentz γ, Schwarzschild dilation, thin-lens geometry, Born-rule probabilities, and Bell correlators from quantum mechanics. Beautiful, playable, and built for curious minds.
Screenshots
Verdict
The clearest difference is ads: WATCHe at none against Quantum Horizon's shown. WATCHe also leads on iOS requirement (9.1 vs 15.0). On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | WATCHe | Quantum Horizon |
|---|---|---|
| Price | Free | Free |
| Rating | 2.6 (13 ratings) — better | — |
| Positive reviews | 28.6% of reviews | — |
| Number of ratings | 13 — better | — |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod, Apple Watch | iPhone, iPad, iPod |
| Requires iOS | 9.1 — better | 15.0 |
| Further details — not scored | ||
| Size | 37 MB | 104 MB |
| Age rating | 4+ | 4+ |
| Developer | Nomad Systems Sàrl | Abdulrazaq Alonazi |
In-app purchases
WATCHe
No in-app purchases
Quantum Horizon
No in-app purchases






