Planetary Clock vs Planetaria
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
Planetaria
Explore a dynamic 3D model of the Solar System, synchronizing with real-time data to show celestial bodies in orbit. Discover planets, dwarf planets, and moons with detailed surface models. Manipulate time to view past and future solar system configurations.
- Interactive 3D Solar System model
- Real-time celestial body positions
- Detailed 3D surface models
- Explore planets, dwarf planets, and moons
- Time manipulation (past/future)
- AR integration
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Explore the celestial worlds of the Solar System with Planetaria, an interactive 3D simulator experience for iPhone, iPad, and Apple Vision Pro. This dynamic scale model of the Solar System synchronizes with real-time data to display the live positions of celestial bodies in their orbits, along with beautiful and detailed 3D models of their surfaces. On your journey through outer space, you can visit the Sun, the 8 planets, 5 dwarf planets, and over 20 major moons. Entire worlds await your discovery, each with their own individual features and environments. You can also fast-forward or rewind time, and see what the Solar System looks like at any time in the past or future. Photos and 3D models provided by NASA/JPL.
Screenshots
Verdict
The clearest difference is update cadence: Planetaria at every 5 months against Planetary Clock's every 27 months. Planetary Clock's advantage is price ($0.99 vs $4.99) and rating (4.9 vs 4.7). On review sentiment, ads, in-app purchases and monetization model 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 Planetaria $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Planetary Clock holds the better App Store score, 4.9 against 4.7. Both are backed by a comparable volume of ratings — 34 and 9 respectively. Written reviews point the same way: 57% of Planetary Clock's written reviews are positive against 50% of Planetaria's.
Planetary Clock ships an update every 27 months, Planetaria every 5 months. The most recent releases landed on August 19, 2026 and September 2, 2026 respectively.
| Parameter | Planetary Clock | Planetaria |
|---|---|---|
| Price | $0.99 — better | $4.99 |
| Rating | 4.9 (34 ratings) — better | 4.7 (9 ratings) |
| Positive reviews | 57.1% of reviews — better | 50.0% of reviews |
| Number of ratings | 34 — better | 9 |
| Update frequency | Every 27 months | Every 5 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Vision Pro |
| Requires iOS | 11.4 — better | 16.4 |
| Further details — not scored | ||
| Size | 14 MB | 510 MB |
| Age rating | 4+ | 4+ |
| Developer | Piotr Knapczyk | Joseph Rupertus |
Customer experience
Planetary Clock
Planetaria
In-app purchases
Planetary Clock
No in-app purchases
Planetaria
No in-app purchases
Questions
Is Planetary Clock free?
Is Planetaria free?
Which has better reviews, Planetary Clock or Planetaria?
Do Planetary Clock or Planetaria have ads?
Which is updated more often, Planetary Clock or Planetaria?
Other comparisons
