# Solar System vs TrueSize

The clearest difference is rating: TrueSize at 4.7 against Solar System's 3.8. TrueSize also leads on update cadence (every 10 days vs every 107 months) and ratings volume (340 vs 32). Solar System's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price, review sentiment and device support there is nothing between them.

Both are free to download. TrueSize sells 1 one-off in-app purchase. Solar System asks for nothing beyond the download.

TrueSize holds the better App Store score, 4.7 against 3.8. That said, the two scores are not equally well evidenced: TrueSize has 340 ratings behind it against 32, so its average is the more settled of the two. Written reviews point the same way: 67% of Solar System's written reviews are positive against 72% of TrueSize's.

Solar System ships an update every 107 months, TrueSize every 10 days. The most recent releases landed on November 2, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Solar System | TrueSize |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.8 (32 ratings)](https://appshunter.io/ios/app/solar-system-ar-view/id1335043082/reviews) | **[4.7 (340 ratings)](https://appshunter.io/ios/app/truesize-compare-countries/id6754521525/reviews)** |
| Number of ratings | 32 | **340** |
| Positive reviews | 66.7% of reviews | **72.3% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 107 months | **Every 10 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 12 MB | 168 MB |
| Requires iOS | 17.0 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Luis Carvajal Hoyos](https://appshunter.io/developer/1061577851) | [BINARY BANANA LLC](https://appshunter.io/developer/971978288) |

## What reviewers say

### Solar System

[App page](https://appshunter.io/ios/app/solar-system-ar-view/id1335043082)

Explore planets, dwarf planets, and moons in your own space using augmented reality. Walk around the solar system, view celestial bodies in scale, and access detailed information about each planet and its moons.

**Highlights:** Augmented reality solar system view, Explore planets, dwarf planets, and moons, Scale mode for size and distance comparison, Detailed planet and moon information, Interactive exploration

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

**In-app purchases:** none


### TrueSize

[App page](https://appshunter.io/ios/app/truesize-compare-countries/id6754521525)

Explore the accurate sizes of countries and regions on an interactive map, overcoming the distortions of traditional flat maps. Compare territories, explore historical borders, and learn about populations and languages.

**Highlights:** True-size country comparisons, Interactive map with 750,000+ regions, Historical timeline of borders, Population and density tool, Language and natural feature exploration, Geography games and quizzes, Measurement and editing tools

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $4.99 | one-time |


## Frequently asked questions

### Is Solar System free?

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

### Is TrueSize free?

TrueSize is free to download, with in-app purchases available.

### Which has better reviews, Solar System or TrueSize?

TrueSize is rated higher. Solar System averages 3.8 out of 5 from 32 ratings, while TrueSize averages 4.7 from 340 ratings.

### Do Solar System or TrueSize have ads?

TrueSize shows ads; Solar System does not.

### Which is updated more often, Solar System or TrueSize?

Solar System ships an update every 107 months, and TrueSize every 10 days. Most recently, Solar System was updated on November 2, 2026 and TrueSize on November 5, 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.*