# Hello Mars vs Mars

The clearest difference is ads: Hello Mars at none against Mars's shown. Hello Mars also leads on update cadence (every 3 days vs every 32 months) and iOS requirement (6.0 vs 17.0). On price, 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.

Hello Mars ships an update every 3 days, Mars every 32 months. The most recent releases landed on September 7, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | Hello Mars | Mars |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.6 (22 ratings)](https://appshunter.io/ios/app/hello-mars/id1097625079/reviews)** | — |
| Number of ratings | **22** | — |
| Positive reviews | 57.1% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 3 days** | Every 32 months |
| Monetization | Free | — |
| Size | 227 MB | 108 MB |
| Requires iOS | **6.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 9+ |
| Developer | [Lockheed Martin](https://appshunter.io/developer/400687539) | [Alparslan Topbas](https://appshunter.io/developer/1130875171) |

## What reviewers say

### 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


### Mars

[App page](https://appshunter.io/ios/app/mars-curiosity/id1549319225)

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

**In-app purchases:** none


## Frequently asked questions

### Is Hello Mars free?

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

### Is Mars free?

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

### Do Hello Mars or Mars have ads?

Mars shows ads; Hello Mars does not.

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

Hello Mars ships an update every 3 days, and Mars every 32 months. Most recently, Hello Mars was updated on September 7, 2026 and Mars on September 11, 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.*