# Space Images vs Hello Mars

The clearest difference is rating: Space Images at 4.6 against Hello Mars's 3.6. Hello Mars's advantage is update cadence (every 3 days vs every 4 months) and iOS requirement (6.0 vs 17.0). On price, review sentiment, ratings volume and ads there is nothing between them.

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

Space Images holds the better App Store score, 4.6 against 3.6. Both are backed by a comparable volume of ratings — 16 and 22 respectively. Written reviews point the same way: 63% of Space Images's written reviews are positive against 57% of Hello Mars's.

Space Images ships an update every 4 months, Hello Mars every 3 days. The most recent releases landed on October 20, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Space Images | Hello Mars |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (16 ratings)](https://appshunter.io/ios/app/space-images/id347075764/reviews)** | [3.6 (22 ratings)](https://appshunter.io/ios/app/hello-mars/id1097625079/reviews) |
| Number of ratings | 16 | **22** |
| Positive reviews | **63.0% of reviews** | 57.1% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 days** |
| Monetization | Free | Free |
| Size | 23 MB | 227 MB |
| Requires iOS | 17.0 | **6.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jet Propulsion Laboratory](https://appshunter.io/developer/347075767) | [Lockheed Martin](https://appshunter.io/developer/400687539) |

## What reviewers say

### Space Images

[App page](https://appshunter.io/ios/app/space-images/id347075764)

Explore breathtaking images from NASA missions, featuring planets, galaxies, and space technology. This app offers widgets for your home screen and StandBy mode, allowing you to view a slideshow while your device charges. You can also bookmark, search, and share your favorite celestial discoveries.

**Highlights:** Latest NASA space images, Widgets for home screen, StandBy mode slideshow, Image notifications, Search and browse categories, Bookmark and share images

**Features:** macOS Compatibility

**In-app purchases:** none


### Hello Mars

[App page](https://appshunter.io/ios/app/hello-mars/id1097625079)

Explore the stars and journey to Mars with real-time weather data directly from the Curiosity Rover. Track planetary positions and share your cosmic adventures.

**Highlights:** Real-time weather from Curiosity Rover, Accurate planetary tracking, Share experiences on social media, Explore Mars on your phone

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Space Images free?

Space Images is free to download, with no in-app purchases.

### Is Hello Mars free?

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

### Which has better reviews, Space Images or Hello Mars?

Space Images is rated higher. Space Images averages 4.6 out of 5 from 16 ratings, while Hello Mars averages 3.6 from 22 ratings.

### Do Space Images or Hello Mars have ads?

Neither Space Images nor Hello Mars shows ads.

### Which is updated more often, Space Images or Hello Mars?

Space Images ships an update every 4 months, and Hello Mars every 3 days. Most recently, Space Images was updated on October 20, 2026 and Hello Mars 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.*