Planetary Clock vs Planetarium 3D
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Planetary Clock
Visualize the precise positions of all planets in the Solar System for any given day. It uses accurate NASA data for orbital calculations and relative planet sizing, offering a clear, educational view of celestial mechanics.
- Real-time planet positions
- Accurate orbital calculations
- Uses NASA data
- Relative planet sizing
- Educational solar system view
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Planetary Clock is simple and elegant app what shows positions of all planets of the Solar System at any given day. The app uses precise calculation to determine accurate positions in real time. Sun’s and planets sizes are not to scale in order to show them clearly, but other parameters such as size of orbit, eccentricity, shape of the orbit and position of planets are calculated using precise NASA data. Planets are also realistically sized to each other
Planetarium 3D
Explore the solar system in an interactive 3D environment. Travel to planets, moons, dwarf planets, and asteroids, with detailed facts and stunning visuals. Launch cinematic tours and capture your favorite views.
- Interactive 3D solar system model
- Instant travel to planets and moons
- Explore dwarf planets and asteroids
- Cinematic tours with various perspectives
- Capture and share space views
- Real science-inspired facts and data
- Supports multiple Apple devices
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Planetarium 3D turns the solar system into a place you can actually move through. Spin the system with your fingers, zoom in, tap a world, and launch across space to meet it. Drift past Saturn's rings, drop in on Jupiter's moons, or head far beyond Pluto to explore dwarf planets and distant icy worlds. Choose how you want to travel: - Tap any planet to fly there instantly - Visit moons directly and open fact cards along the way - Explore dwarf planets and named asteroids beyond the main planetary lineup - Launch cinematic tours with different flight styles and perspectives - Capture and share your favorite views This version lets you explore more than the classic solar system view. Alongside the 9 planets and 23 moons (now with Mimas, Iapetus, Miranda), you can now travel to worlds like Ceres, Vesta, Pallas, Haumea, Makemake, Eris, Sedna and Quaoar. Built for curiosity, not complexity: - Beautiful 3D planets, rings, lighting and atmosphere effects - Real science-inspired facts and orbital data - Simple touch controls with quick onboarding - Supports iPhone, iPad, Mac and Apple TV - Available in 19 languages No account. No setup. Just open the app and start flying.
Screenshots
Verdict
The clearest difference is update cadence: Planetarium 3D at every 6 weeks against Planetary Clock's every 27 months. Planetary Clock's advantage is review sentiment (57% vs 33%) and price ($0.99 vs $3.99). On ads, in-app purchases, monetization model 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
Planetary Clock costs $0.99 and Planetarium 3D $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Planetary Clock ships an update every 27 months, Planetarium 3D every 6 weeks. The most recent releases landed on August 19, 2026 and September 12, 2026 respectively.
| Parameter | Planetary Clock | Planetarium 3D |
|---|---|---|
| Price | $0.99 — better | $3.99 |
| Rating | 4.9 (34 ratings) — better | — |
| Positive reviews | 57.1% of reviews — better | 33.3% of reviews |
| Number of ratings | 34 — better | — |
| Update frequency | Every 27 months | Every 6 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple TV |
| Requires iOS | 11.4 — better | 18.6 |
| Further details — not scored | ||
| Size | 14 MB | 35 MB |
| Age rating | 4+ | 4+ |
| Developer | Piotr Knapczyk | Solueman Hussain |
Customer experience
Planetary Clock
Planetarium 3D
In-app purchases
Planetary Clock
No in-app purchases
Planetarium 3D
No in-app purchases
Questions
Is Planetary Clock free?
Is Planetarium 3D free?
Do Planetary Clock or Planetarium 3D have ads?
Which is updated more often, Planetary Clock or Planetarium 3D?
Other comparisons
