# Mapology World vs Stars Units Sizes Objects

The clearest difference is review sentiment: Stars Units Sizes Objects at 80% against Mapology World's 38%. Stars Units Sizes Objects also leads on rating (4.2 vs 3.4) and iOS requirement (11.0 vs 14.0). Mapology World's advantage is ads (none vs shown) and update cadence (fortnightly vs every 4 months). 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.

Stars Units Sizes Objects holds the better App Store score, 4.2 against 3.4. Both are backed by a comparable volume of ratings — 15 and 5 respectively. Written reviews point the same way: 38% of Mapology World's written reviews are positive against 80% of Stars Units Sizes Objects's.

Mapology World ships an update fortnightly, Stars Units Sizes Objects every 4 months. The most recent releases landed on October 12, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Mapology World | Stars Units Sizes Objects |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.4 (15 ratings)](https://appshunter.io/ios/app/mapology-world/id1489622765/reviews) | **[4.2 (5 ratings)](https://appshunter.io/ios/app/stars-units-sizes-objects/id1576148571/reviews)** |
| Number of ratings | **15** | 5 |
| Positive reviews | 37.5% of reviews | **80.0% of reviews** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Fortnightly** | Every 4 months |
| Monetization | **Free** | Ad-supported |
| Size | 712 MB | 124 MB |
| Requires iOS | 14.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [IMAGIMAKE PLAY SOLUTIONS PRIVATE LIMITED](https://appshunter.io/developer/1488928652) | [Mudarmeen Munlin](https://appshunter.io/developer/1348165664) |

## What reviewers say

### Mapology World

[App page](https://appshunter.io/ios/app/mapology-world/id1489622765)

Explore the world through interactive puzzles and engaging games. Learn about countries, capitals, and landmarks with multiple play modes. Compete with friends and track your progress on global leaderboards.

**Highlights:** Interactive country puzzles, Country and capital identification, Discovery mode with AR scanning, Master mode quizzes, Time challenge mode, Leaderboards and score tracking, Avatar customization

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 Mapology World free?

Mapology World 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, Mapology World or Stars Units Sizes Objects?

Stars Units Sizes Objects is rated higher. Mapology World averages 3.4 out of 5 from 15 ratings, while Stars Units Sizes Objects averages 4.2 from 5 ratings.

### Do Mapology World or Stars Units Sizes Objects have ads?

Stars Units Sizes Objects shows ads; Mapology World does not.

### Which is updated more often, Mapology World or Stars Units Sizes Objects?

Mapology World ships an update fortnightly, and Stars Units Sizes Objects every 4 months. Most recently, Mapology World was updated on October 12, 2026 and Stars Units Sizes Objects on September 22, 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.*