# 3D Solar System vs Tortoise Blocks

The clearest difference is in-app purchases: Tortoise Blocks at none against 3D Solar System's 10. Tortoise Blocks also leads on ads (none vs shown) and update cadence (weekly vs fortnightly). 3D Solar System's advantage is iOS requirement (16.0 vs 26.0). On price there is nothing between them.

Both are free to download. 3D Solar System sells 10 in-app purchases, starting at $9.99 per month. Tortoise Blocks asks for nothing beyond the download.

3D Solar System ships an update fortnightly, Tortoise Blocks weekly. The most recent releases landed on November 6, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | 3D Solar System | Tortoise Blocks |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (1.7K ratings)](https://appshunter.io/ios/app/3d-solar-system-planets-view/id983877380/reviews)** | — |
| Number of ratings | **1.7K** | — |
| Positive reviews | 28.8% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Fortnightly | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Size | 352 MB | 9 MB |
| Requires iOS | **16.0** | 26.0 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac, Vision Pro** |
| Age rating | 4+ | 4+ |
| Developer | [Education Terra](https://appshunter.io/developer/946819038) | [Tomoki Kobayashi](https://appshunter.io/developer/323485927) |

## What reviewers say

### 3D Solar System

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

Explore our solar system in 3D and augmented reality. Learn about planets, moons, constellations, and stars with interactive maps and engaging quizzes. Create your own planets with AI.

**Highlights:** 3D and AR Solar System exploration, Interactive star map with gyroscope support, Detailed information on planets, moons, and constellations, Knowledge-testing quizzes and challenges, AI-powered planet creation, Constellation lore and astronomy facts

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Month PRO | $9.99 | per month |
| 1 month Sale | $10.99 | per month |
| 12 months sale | $14.99 | per year |
| 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


### Tortoise Blocks

[App page](https://appshunter.io/ios/app/tortoise-blocks/id6798677334)

**In-app purchases:** none


## Frequently asked questions

### Is 3D Solar System free?

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

### Is Tortoise Blocks free?

Tortoise Blocks is free to download, with no in-app purchases.

### Do 3D Solar System or Tortoise Blocks have ads?

3D Solar System shows ads; Tortoise Blocks does not.

### Which is updated more often, 3D Solar System or Tortoise Blocks?

3D Solar System ships an update fortnightly, and Tortoise Blocks weekly. Most recently, 3D Solar System was updated on November 6, 2026 and Tortoise Blocks on October 31, 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.*