# 88 constellations vs 3D Solar System

The clearest difference is review sentiment: 88 constellations at 100% against 3D Solar System's 29%. 88 constellations also leads on rating (5.0 vs 4.4) and in-app purchases (none vs 12). 3D Solar System's advantage is update cadence (fortnightly vs every 4 months) and ratings volume (1.7K vs 1). On price and device support there is nothing between them.

Both are free to download. 3D Solar System sells 12 in-app purchases, starting at $7.99 per 7 days. 88 constellations asks for nothing beyond the download.

88 constellations holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: 3D Solar System has 1.7K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 100% of 88 constellations's written reviews are positive against 29% of 3D Solar System's.

88 constellations ships an update every 4 months, 3D Solar System fortnightly. The most recent releases landed on October 4, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | 88 constellations | 3D Solar System |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/88-constellations/id879825049/reviews)** | [4.4 (1.7K ratings)](https://appshunter.io/ios/app/3d-solar-system-planets-view/id983877380/reviews) |
| Number of ratings | 1 | **1.7K** |
| Positive reviews | **100.0% of reviews** | 28.8% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Fortnightly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 14 MB | 351 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | iPad | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Vladimir Vascak](https://appshunter.io/developer/868771511) | [Education Terra](https://appshunter.io/developer/946819038) |

## What reviewers say

### 88 constellations

[App page](https://appshunter.io/ios/app/88-constellations/id879825049)

Explore the night sky and identify celestial objects like stars, planets, and constellations. Set the sky to any position and time to learn about the universe.

**Highlights:** Identify stars and planets, View constellations, Set sky position and time, Interactive sky map, Educational astronomy tool

**Features:** macOS Compatibility

**In-app purchases:** none


### 3D Solar System

[App page](https://appshunter.io/ios/app/3d-solar-system-planets-view/id983877380)

Explore the solar system in 3D and augmented reality. Learn about planets, moons, stars, and constellations through interactive models, scientific facts, and engaging quizzes. Create your own planets with AI.

**Highlights:** 3D & AR Solar System models, Scientific facts about celestial bodies, Interactive star map, Engaging educational tasks and quizzes, AI-powered planet creation

**Features:** macOS Compatibility

**In-app purchases (12)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Week Subscription | $7.99 | per 7 days |
| 1 Month PRO | $9.99 | per month |
| 1 month Sale | $10.99 | per month |
| 12 months sale | $14.99 | per year |
| 6 months | $19.99 | per 6 months |
| Astronomy guide - Sky atlas | $19.99 | per month |
| 12 months | $29.99 | per year |
| Astronomy guide - Sky atlas | $29.99 | per 3 months |
| 2 Month Subscription | $39.99 | per 2 months |
| 2 Months Subscription | $39.99 | per 2 months |
| Disable Ads Sale | $9.99 | one-time |
| Disable Ads | $19.99 | one-time |

**What reviewers like**

- 🌟 Informative and educational
- 🔍 Detailed solar system information
- 🎨 Cool visuals and graphics

**What reviewers complain about**

- 💰 Expensive subscription model
- 🔒 Difficult to cancel subscription
- 🤔 Misleading 'free' claims
- 🐛 Bugs and glitches
- 🤯 Confusing user interface

**Reported bugs**

- Planets displayed incorrectly
- Subscription charges without consent
- Inability to cancel subscription

**Requested features**

- More free content and features
- Realistic planet models and animations
- Expanded content beyond the solar system
- Improved accessibility and usability


## Frequently asked questions

### Is 88 constellations free?

88 constellations is free to download, with no in-app purchases.

### Is 3D Solar System free?

3D Solar System is free to download, with in-app purchases available.

### Which has better reviews, 88 constellations or 3D Solar System?

88 constellations is rated higher. 88 constellations averages 5.0 out of 5 from 1 ratings, while 3D Solar System averages 4.4 from 1.7K ratings.

### Do 88 constellations or 3D Solar System have ads?

3D Solar System shows ads; 88 constellations does not.

### Which is updated more often, 88 constellations or 3D Solar System?

88 constellations ships an update every 4 months, and 3D Solar System fortnightly. Most recently, 88 constellations was updated on October 4, 2026 and 3D Solar System on October 24, 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.*