# What's Up? vs Mars Info

The clearest difference is price: What's Up? at Free against Mars Info's $6.99. What's Up? also leads on review sentiment (58% vs 42%) and iOS requirement (12.5 vs 17.0). Mars Info's advantage is ratings volume (159 vs 9). On rating, update cadence, ads and in-app purchases there is nothing between them.

What's Up? is free to download; Mars Info costs $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 4.2 for What's Up? against 4.3 for Mars Info. That said, the two scores are not equally well evidenced: Mars Info has 159 ratings behind it against 9, so its average is the more settled of the two. Written reviews are what separate them: 58% of What's Up?'s written reviews are positive against 42% of Mars Info's.

What's Up? ships an update every 3 months, Mars Info every 2 months. The most recent releases landed on October 29, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | What's Up? | Mars Info |
| --- | --- | --- |
| Price | **Free** | $6.99 |
| Rating | [4.2 (9 ratings)](https://appshunter.io/ios/app/whats-up/id393023070/reviews) | **[4.3 (159 ratings)](https://appshunter.io/ios/app/mars-info/id1088383309/reviews)** |
| Number of ratings | 9 | **159** |
| Positive reviews | **57.9% of reviews** | 41.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 49 MB | 212 MB |
| Requires iOS | **12.5** | 17.0 |
| Devices | iPhone, iPad, iPod, Apple Watch | iPhone, iPad, Mac, Apple TV |
| Age rating | 4+ | 4+ |
| Developer | [John Kennedy](https://appshunter.io/developer/284943103) | [Viktor Goltvyanytsya](https://appshunter.io/developer/556365139) |

## What reviewers say

### What's Up?

[App page](https://appshunter.io/ios/app/whats-up/id393023070)

Discover celestial bodies visible in the night sky with this intuitive app. Easily track planets, the Sun, and Moon, and forecast their appearance. Access detailed information and moon phases, with support for the Southern Hemisphere.

**Highlights:** Simple sky grid display, Effortless navigation, Time-bar functionality, Comprehensive celestial information, Observation insights, Moon phases, Wikipedia links

**Features:** macOS Compatibility

**In-app purchases:** none


### Mars Info

[App page](https://appshunter.io/ios/app/mars-info/id1088383309)

Explore the Red Planet with an interactive 3D globe. Discover and learn about key Martian locations like volcanoes, craters, and mountains. View detailed information including size and coordinates for each point of interest.

**Highlights:** Interactive 3D globe with gesture controls, Pinpoint 80+ interesting Martian locations, Detailed information on locations, Zoom, rotate, and tilt controls, List of selectable locations

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is What's Up? free?

What's Up? is free to download, with no in-app purchases.

### Is Mars Info free?

Mars Info costs $6.99, with no in-app purchases.

### Which has better reviews, What's Up? or Mars Info?

Mars Info is rated higher. What's Up? averages 4.2 out of 5 from 9 ratings, while Mars Info averages 4.3 from 159 ratings.

### Do What's Up? or Mars Info have ads?

Neither What's Up? nor Mars Info shows ads.

### Which is updated more often, What's Up? or Mars Info?

What's Up? ships an update every 3 months, and Mars Info every 2 months. Most recently, What's Up? was updated on October 29, 2026 and Mars Info on October 21, 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.*