# Solar System&Celestial Objects vs Deeper | Ocean Explorer

The clearest difference is in-app purchases: Solar System&Celestial Objects at none against Deeper | Ocean Explorer's 1. Solar System&Celestial Objects also leads on device support (3 vs 1) and iOS requirement (12.0 vs 16.4). Deeper | Ocean Explorer's advantage is ads (none vs shown). On price and update cadence there is nothing between them.

Both are free to download. Deeper | Ocean Explorer sells 1 one-off in-app purchase. Solar System&Celestial Objects asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 6 weeks. The most recent releases landed on October 25, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Solar System&Celestial Objects | Deeper | Ocean Explorer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/deeper-ocean-explorer/id6803918968/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 6 weeks | Every 6 weeks |
| Monetization | — | Free |
| Size | 62 MB | 54 MB |
| Requires iOS | **12.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [NIKI TECH](https://appshunter.io/developer/1788609104) | [Ata Guneser](https://appshunter.io/developer/1806352102) |

## What reviewers say

### Solar System&Celestial Objects

[App page](https://appshunter.io/ios/app/solar-system-and-celestial-objects/id6503188651)

**Features:** macOS Compatibility

**In-app purchases:** none


### Deeper | Ocean Explorer

[App page](https://appshunter.io/ios/app/deeper-ocean-explorer/id6803918968)

Embark on an interactive journey to explore the ocean's hidden depths, from the sunlit surface to the darkest trenches. Discover unique marine life, understand extreme environments, and learn about fascinating deep-sea phenomena. Test your knowledge with engaging quizzes.

**Highlights:** Explore ocean depth zones, Discover marine life species, Understand deep-sea phenomena, Learn about ocean processes, Interactive quizzes, Visual and engaging learning

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Deeper Premium | $0.99 | one-time |


## Frequently asked questions

### Is Solar System&Celestial Objects free?

Solar System&Celestial Objects is free to download, with no in-app purchases.

### Is Deeper | Ocean Explorer free?

Deeper | Ocean Explorer is free to download, with in-app purchases available.

### Do Solar System&Celestial Objects or Deeper | Ocean Explorer have ads?

Solar System&Celestial Objects shows ads; Deeper | Ocean Explorer does not.

### Which is updated more often, Solar System&Celestial Objects or Deeper | Ocean Explorer?

Solar System&Celestial Objects ships an update every 6 weeks, and Deeper | Ocean Explorer every 6 weeks. Most recently, Solar System&Celestial Objects was updated on October 25, 2026 and Deeper | Ocean Explorer on October 29, 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.*