# TriBlackHolesHD vs Intergalactic Solar System

The clearest difference is review sentiment: Intergalactic Solar System at 70% against TriBlackHolesHD's 14%. Intergalactic Solar System also leads on rating (4.0 vs 2.8) and update cadence (monthly vs every 23 months). TriBlackHolesHD's advantage is in-app purchases (none vs 1). On price, ratings volume, ads and device support there is nothing between them.

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

Intergalactic Solar System holds the better App Store score, 4.0 against 2.8. Both are backed by a comparable volume of ratings — 42 and 25 respectively. Written reviews point the same way: 14% of TriBlackHolesHD's written reviews are positive against 70% of Intergalactic Solar System's.

TriBlackHolesHD ships an update every 23 months, Intergalactic Solar System monthly. The most recent releases landed on September 16, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | TriBlackHolesHD | Intergalactic Solar System |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.8 (42 ratings)](https://appshunter.io/ios/app/triblackholeshd/id1491286521/reviews) | **[4.0 (25 ratings)](https://appshunter.io/ios/app/intergalactic-solar-system/id1505399254/reviews)** |
| Number of ratings | **42** | 25 |
| Positive reviews | 14.3% of reviews | **70.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 23 months | **Monthly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 56 MB | 355 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Francois PIEDNOEL](https://appshunter.io/developer/1044169697) | [Intergalactic Education LLC](https://appshunter.io/developer/1364648815) |

## What reviewers say

### TriBlackHolesHD

[App page](https://appshunter.io/ios/app/triblackholeshd/id1491286521)

Experience the hypnotic lensing of light around three black holes. This app offers an exact lensing algorithm to observe this fascinating astrophysical phenomenon, providing a unique perspective on the universe.

**Highlights:** Observing light lensing, Exact lensing algorithm, Triple black hole simulation, Educational perspective on astrophysics

**Features:** macOS Compatibility

**In-app purchases:** none


### Intergalactic Solar System

[App page](https://appshunter.io/ios/app/intergalactic-solar-system/id1505399254)

Explore planets, moons, and countries in this space simulator mini-game. Learn astronomy and geography aligned with next-generation science standards. Discover the Milky Way galaxy and assess your knowledge through engaging gameplay.

**Highlights:** Planet and moon exploration, Country geography learning, Milky Way galaxy view, Common Core aligned curriculum, Proficiency assessment, Engaging gameplay levels

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Access to Full Game | $3.99 | one-time |


## Frequently asked questions

### Is TriBlackHolesHD free?

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

### Is Intergalactic Solar System free?

Intergalactic Solar System is free to download, with in-app purchases available.

### Which has better reviews, TriBlackHolesHD or Intergalactic Solar System?

Intergalactic Solar System is rated higher. TriBlackHolesHD averages 2.8 out of 5 from 42 ratings, while Intergalactic Solar System averages 4.0 from 25 ratings.

### Do TriBlackHolesHD or Intergalactic Solar System have ads?

Neither TriBlackHolesHD nor Intergalactic Solar System shows ads.

### Which is updated more often, TriBlackHolesHD or Intergalactic Solar System?

TriBlackHolesHD ships an update every 23 months, and Intergalactic Solar System monthly. Most recently, TriBlackHolesHD was updated on September 16, 2026 and Intergalactic Solar System 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.*