# Planetary Clock vs Planetarium 3D

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.

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. Both last shipped on September 30, 2026.

## The numbers

| Metric | Planetary Clock | Planetarium 3D |
| --- | --- | --- |
| Price | **$0.99** | $3.99 |
| Rating | **[4.9 (34 ratings)](https://appshunter.io/ios/app/planetary-clock/id812876503/reviews)** | — |
| Number of ratings | **34** | — |
| Positive reviews | **57.1% of reviews** | 33.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 27 months | **Every 6 weeks** |
| Monetization | Paid | Paid |
| Size | 14 MB | 35 MB |
| Requires iOS | **11.4** | 18.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple TV |
| Age rating | 4+ | 4+ |
| Developer | [Piotr Knapczyk](https://appshunter.io/developer/1541886746) | [Solueman Hussain](https://appshunter.io/developer/504255127) |

## What reviewers say

### Planetary Clock

[App page](https://appshunter.io/ios/app/planetary-clock/id812876503)

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.

**Highlights:** Real-time planet positions, Accurate orbital calculations, Uses NASA data, Relative planet sizing, Educational solar system view

**Features:** macOS Compatibility

**In-app purchases:** none


### Planetarium 3D

[App page](https://appshunter.io/ios/app/planetarium-3d-solar-system/id966700707)

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.

**Highlights:** 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

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Planetary Clock free?

Planetary Clock costs $0.99, with no in-app purchases.

### Is Planetarium 3D free?

Planetarium 3D costs $3.99, with no in-app purchases.

### Do Planetary Clock or Planetarium 3D have ads?

Neither Planetary Clock nor Planetarium 3D shows ads.

### Which is updated more often, Planetary Clock or Planetarium 3D?

Planetary Clock ships an update every 27 months, and Planetarium 3D every 6 weeks. Most recently, Planetary Clock was updated on September 30, 2026 and Planetarium 3D on September 30, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*