# Mars Globe HD vs Sky Across

The clearest difference is review sentiment: Sky Across at 100% against Mars Globe HD's 83%. Sky Across also leads on update cadence (monthly vs every 3 months). Mars Globe HD's advantage is price ($0.99 vs $2.99) and iOS requirement (7.0 vs 15.0). On ads, in-app purchases, monetization model and device support there is nothing between them.

Mars Globe HD costs $0.99 and Sky Across $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Mars Globe HD ships an update every 3 months, Sky Across monthly. The most recent releases landed on November 6, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Mars Globe HD | Sky Across |
| --- | --- | --- |
| Price | **$0.99** | $2.99 |
| Rating | **[4.8 (54 ratings)](https://appshunter.io/ios/app/mars-globe-hd/id376020224/reviews)** | — |
| Number of ratings | **54** | — |
| Positive reviews | 82.7% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Monthly** |
| Monetization | Paid | Paid |
| Size | 526 MB | 16 MB |
| Requires iOS | **7.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Midnight Martian](https://appshunter.io/developer/284473660) | [Yue Liu](https://appshunter.io/developer/1818433170) |

## What reviewers say

### Mars Globe HD

[App page](https://appshunter.io/ios/app/mars-globe-hd/id376020224)

Explore the Red Planet with a detailed virtual globe. This app features a high-resolution satellite map, topographic lighting, and annotated surface features. Discover intriguing locations with an introduction and guided tour, or explore freely.

**Highlights:** High-resolution satellite map of Mars, Advanced topographic lighting, Annotated surface features (1500+), Introduction and guided tour, Free exploration mode

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

**In-app purchases:** none

**What reviewers like**

- 👍 Visually stunning and detailed
- 💡 Informative and educational
- 🚀 Smooth and intuitive navigation
- 🌟 Great for astronomy enthusiasts
- 📱 Pocket-sized Mars exploration

**What reviewers complain about**

- ⚠️ Lacks recent mission data (Curiosity, Perseverance)
-  blurry HD textures on modern iOS
- 📉 Outdated information
- ❓ Dead NASA links
- 🐌 Slow download/update times

**Reported bugs**

- Dead NASA links
- Blurry HD textures on modern iOS
- Navigation issues near poles
- Choppy playback after updates
- Jittery movement during rotation

**Requested features**

- Add Sun, Earth, and moons Phobos/Deimos
- More defined sun color
- Update with InSight and Perseverance landing sites
- Add a reset button
- Input latitude and longitude


### Sky Across

[App page](https://appshunter.io/ios/app/sky-acrossmulticultural-stars/id6746770709)

Discover the night sky through augmented reality and explore celestial patterns from diverse cultural perspectives. Compare constellations and star names from different traditions side-by-side in multiple languages, even offline.

**Highlights:** Augmented reality star map, Multicultural constellation comparison, Dual-language star names, Offline stargazing, Night mode interface, Lightweight and fast performance

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

**In-app purchases:** none


## Frequently asked questions

### Is Mars Globe HD free?

Mars Globe HD costs $0.99, with no in-app purchases.

### Is Sky Across free?

Sky Across costs $2.99, with no in-app purchases.

### Do Mars Globe HD or Sky Across have ads?

Neither Mars Globe HD nor Sky Across shows ads.

### Which is updated more often, Mars Globe HD or Sky Across?

Mars Globe HD ships an update every 3 months, and Sky Across monthly. Most recently, Mars Globe HD was updated on November 6, 2026 and Sky Across on October 30, 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.*