# Mars Info Lite vs Stars Units Sizes Objects

The clearest difference is ads: Mars Info Lite at none against Stars Units Sizes Objects's shown. Mars Info Lite also leads on ratings volume (200 vs 5) and review sentiment (96% vs 80%). Stars Units Sizes Objects's advantage is iOS requirement (11.0 vs 17.0). 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 Info Lite holds the better App Store score, 4.4 against 4.2. That said, the two scores are not equally well evidenced: Mars Info Lite has 200 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 96% of Mars Info Lite's written reviews are positive against 80% of Stars Units Sizes Objects's.

Mars Info Lite ships an update every 3 months, Stars Units Sizes Objects every 4 months. The most recent releases landed on September 20, 2026 and September 7, 2026 respectively.

## The numbers

| Metric | Mars Info Lite | Stars Units Sizes Objects |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (200 ratings)](https://appshunter.io/ios/app/mars-info-lite/id1093071808/reviews)** | [4.2 (5 ratings)](https://appshunter.io/ios/app/stars-units-sizes-objects/id1576148571/reviews) |
| Number of ratings | **200** | 5 |
| Positive reviews | **96.0% of reviews** | 80.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 3 months** | Every 4 months |
| Monetization | **Free** | Ad-supported |
| Size | 210 MB | 124 MB |
| Requires iOS | 17.0 | **11.0** |
| Devices | **iPhone, iPad, Mac, Apple TV** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Viktor Goltvyanytsya](https://appshunter.io/developer/556365139) | [Mudarmeen Munlin](https://appshunter.io/developer/1348165664) |

## What reviewers say

### Mars Info Lite

[App page](https://appshunter.io/ios/app/mars-info-lite/id1093071808)

Explore the surface of the Red Planet with an interactive 3D globe. Discover significant locations like volcanoes, craters, and mountains, and view detailed information about each. This version offers a curated selection of points of interest.

**Highlights:** Interactive 3D Mars globe, Rotate, tilt, and zoom controls, Pinpoint key locations, View location details (name, type, size, coordinates), List of selectable locations

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to navigate and self-explanatory
- ✨ Fantastic graphics and useful information
- 🚀 Responsive navigation around Mars
- 💡 Great for learning about Mars
- 🌟 Awesome info graphics and data

**What reviewers complain about**

- 🐛 Pinpoints shifted 90 degrees in longitude
- 🔭 Can't zoom in close enough
- 🖼️ Picture can be unsteady when scrolling text

**Reported bugs**

- Pinpoints shifted 90 degrees in longitude
- Crashes immediately on iPhone 4s

**Requested features**

- Implement geomorphology data
- Add ability to zoom out and see Mars alignment with other planets
- Add VR support
- Add apps for other planets


### Stars Units Sizes Objects

[App page](https://appshunter.io/ios/app/stars-units-sizes-objects/id1576148571)

Explore the vastness of the universe, from the smallest particles to the largest cosmic structures. Compare object sizes, view detailed images, and perform unit conversions across a wide range of astronomical scales. Learn about stars, galaxies, and the incredible distances between them.

**Highlights:** Compare object sizes, View object images, Pinch/Zoom and Pan images, Unit conversion for distances, Explore scales from Planck length to observable universe, Learn about stars and galaxies

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Mars Info Lite free?

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

### Is Stars Units Sizes Objects free?

Stars Units Sizes Objects is free to download, with no in-app purchases.

### Which has better reviews, Mars Info Lite or Stars Units Sizes Objects?

Mars Info Lite is rated higher. Mars Info Lite averages 4.4 out of 5 from 200 ratings, while Stars Units Sizes Objects averages 4.2 from 5 ratings.

### Do Mars Info Lite or Stars Units Sizes Objects have ads?

Stars Units Sizes Objects shows ads; Mars Info Lite does not.

### Which is updated more often, Mars Info Lite or Stars Units Sizes Objects?

Mars Info Lite ships an update every 3 months, and Stars Units Sizes Objects every 4 months. Most recently, Mars Info Lite was updated on September 20, 2026 and Stars Units Sizes Objects on September 7, 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.*