Planetary Clock vs Pocket Planets
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
Pocket Planets
Explore our solar system with detailed information on planets, moons, and astronauts. Track who is currently in space and receive notifications for new launches. Access NASA images and compare celestial body characteristics.
- Detailed planet and moon data
- Astronaut information and missions
- Real-time space occupancy
- Launch notifications
- NASA image gallery
- Celestial body comparisons
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Pocket Planets gives you all the information you need about our solar system and human activity in space. Learn more about all 565 astronauts who been to space. What was their mission? How long had they been up there? See who is in space now! Get notified when somebody goes into space. Get up to date information about every planet and moon in the solar system. Including: - Physical characteristics: mass, radius, density, gravity, escape velocity - Orbital characteristics: real-time distance from the Sun and Earth, orbital period, orbital speed, eccentricity, apsis, periapsis, visualise orbit - Atmosphere: pressure, atmospheric composition - Images from Nasa - Moons: compare their size and distance
Screenshots
Verdict
The clearest difference is price: Pocket Planets at Free against Planetary Clock's $0.99. Pocket Planets also leads on update cadence (every 3 weeks vs every 27 months) and review sentiment (67% vs 57%). Planetary Clock's advantage is ads (none vs shown) and rating (4.9 vs 4.6). On ratings volume, in-app purchases, device support and iOS requirement 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
Pocket Planets is free to download; Planetary Clock costs $0.99 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 4.6. Both are backed by a comparable volume of ratings — 34 and 22 respectively. Written reviews complicate that: 57% of Planetary Clock's written reviews are positive against 67% of Pocket Planets's, so the app with the better star average is not the one people write more warmly about.
Planetary Clock ships an update every 27 months, Pocket Planets every 3 weeks. The most recent releases landed on August 19, 2026 and September 8, 2026 respectively.
| Parameter | Planetary Clock | Pocket Planets |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 4.9 (34 ratings) — better | 4.6 (22 ratings) |
| Positive reviews | 57.1% of reviews | 66.7% of reviews — better |
| Number of ratings | 34 — better | 22 |
| Update frequency | Every 27 months | Every 3 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Paid | Ad-supported — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.4 — better | 12.0 |
| Further details — not scored | ||
| Size | 14 MB | 66 MB |
| Age rating | 4+ | 4+ |
| Developer | Piotr Knapczyk | Ad Lunam Kereskedelmi es Szolgaltato Korlatolt Felelossegu Tarsasag |
Customer experience
Planetary Clock
Pocket Planets
In-app purchases
Planetary Clock
No in-app purchases
Pocket Planets
No in-app purchases
Questions
Is Planetary Clock free?
Is Pocket Planets free?
Which has better reviews, Planetary Clock or Pocket Planets?
Do Planetary Clock or Pocket Planets have ads?
Which is updated more often, Planetary Clock or Pocket Planets?
Other comparisons
