# Mars Today vs Solar System&Celestial Objects

The clearest difference is ads: Mars Today at none against Solar System&Celestial Objects's shown. Solar System&Celestial Objects's advantage is iOS requirement (12.0 vs 15.2). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Mars Today ships an update monthly, Solar System&Celestial Objects every 6 weeks. The most recent releases landed on June 11, 2026 and May 16, 2026 respectively.

## The numbers

| Metric | Mars Today | Solar System&Celestial Objects |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/mars-today/id1640335599/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Monthly** | Every 6 weeks |
| Monetization | Free | — |
| Size | 4 MB | 62 MB |
| Requires iOS | 15.2 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [James Buckhouse](https://appshunter.io/developer/1631924321) | [NIKI TECH](https://appshunter.io/developer/1788609104) |

## What reviewers say

### Mars Today

[App page](https://appshunter.io/ios/app/mars-today/id1640335599)

Access the latest images of Mars from NASA's Curiosity rover. Browse current photos or explore past images from Curiosity, Spirit, and Opportunity by SOL. Bookmark and share your favorite discoveries.

**Highlights:** Latest Mars images from Curiosity, View past images from Spirit and Opportunity, Browse by Mars SOL, Bookmark favorite images, Easy sharing functionality, No login required

**Features:** macOS Compatibility

**In-app purchases:** none


### Solar System&Celestial Objects

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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Mars Today free?

Mars Today is free to download, with no in-app purchases.

### Is Solar System&Celestial Objects free?

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

### Do Mars Today or Solar System&Celestial Objects have ads?

Solar System&Celestial Objects shows ads; Mars Today does not.

### Which is updated more often, Mars Today or Solar System&Celestial Objects?

Mars Today ships an update monthly, and Solar System&Celestial Objects every 6 weeks. Most recently, Mars Today was updated on June 11, 2026 and Solar System&Celestial Objects on May 16, 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.*