# Planetary Clock vs Planetaria

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.

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.

## The numbers

| Metric | Planetary Clock | Planetaria |
| --- | --- | --- |
| Price | **$0.99** | $4.99 |
| Rating | **[4.9 (34 ratings)](https://appshunter.io/ios/app/planetary-clock/id812876503/reviews)** | [4.7 (9 ratings)](https://appshunter.io/ios/app/planetaria-space-simulator/id1546887479/reviews) |
| Number of ratings | **34** | 9 |
| Positive reviews | **57.1% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 27 months | **Every 5 months** |
| Monetization | Paid | Paid |
| Size | 14 MB | 510 MB |
| Requires iOS | **11.4** | 16.4 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Vision Pro |
| Age rating | 4+ | 4+ |
| Developer | [Piotr Knapczyk](https://appshunter.io/developer/1541886746) | [Joseph Rupertus](https://appshunter.io/developer/1610637143) |

## 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


### Planetaria

[App page](https://appshunter.io/ios/app/planetaria-space-simulator/id1546887479)

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.

**Highlights:** 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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Planetary Clock free?

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

### Is Planetaria free?

Planetaria costs $4.99, with no in-app purchases.

### Which has better reviews, Planetary Clock or Planetaria?

Planetary Clock is rated higher. Planetary Clock averages 4.9 out of 5 from 34 ratings, while Planetaria averages 4.7 from 9 ratings.

### Do Planetary Clock or Planetaria have ads?

Neither Planetary Clock nor Planetaria shows ads.

### Which is updated more often, Planetary Clock or Planetaria?

Planetary Clock ships an update every 27 months, and Planetaria every 5 months. Most recently, Planetary Clock was updated on August 19, 2026 and Planetaria on September 2, 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.*