# Развитие на Детето БГ vs Heliosphere

The clearest difference is in-app purchases: Развитие на Детето БГ at none against Heliosphere's 3. Развитие на Детето БГ also leads on iOS requirement (15.0 vs 18.0). Heliosphere's advantage is ads (none vs shown) and update cadence (every 3 days vs every 23 months). On price and device support there is nothing between them.

Both are free to download. Heliosphere sells 3 one-off in-app purchases. Развитие на Детето БГ asks for nothing beyond the download.

Развитие на Детето БГ ships an update every 23 months, Heliosphere every 3 days. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Развитие на Детето БГ | Heliosphere |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.0 (2 ratings)](https://appshunter.io/ios/app/heliosphere-solar-system/id6757491622/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 23 months | **Every 3 days** |
| Monetization | — | Free |
| Size | 5 MB | 37 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Vision Pro |
| Age rating | 4+ | 4+ |
| Developer | [Tihomir Radev](https://appshunter.io/developer/1403507147) | [CHUNGKIL KIM](https://appshunter.io/developer/960187999) |

## What reviewers say

### Развитие на Детето БГ

[App page](https://appshunter.io/ios/app/id1439354597)

**Features:** macOS Compatibility

**In-app purchases:** none


### Heliosphere

[App page](https://appshunter.io/ios/app/heliosphere-solar-system/id6757491622)

Explore a real-time 3D simulation of the solar system, planets, moons, and spacecraft using accurate astronomical data. Learn about celestial bodies and space missions with educational content and quizzes.

**Highlights:** Real-time 3D solar system simulation, Live spacecraft tracking, Deep sky exploration, Comprehensive astronomy education, Time travel from 1900 to 2100, Planet-centric viewing mode

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Coffee | $2.99 | one-time |
| 3 Coffees | $8.99 | one-time |
| 5 Coffees | $14.99 | one-time |


## Frequently asked questions

### Is Развитие на Детето БГ free?

Развитие на Детето БГ is free to download, with no in-app purchases.

### Is Heliosphere free?

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

### Do Развитие на Детето БГ or Heliosphere have ads?

Развитие на Детето БГ shows ads; Heliosphere does not.

### Which is updated more often, Развитие на Детето БГ or Heliosphere?

Развитие на Детето БГ ships an update every 23 months, and Heliosphere every 3 days. Most recently, Развитие на Детето БГ was updated on October 25, 2026 and Heliosphere on October 24, 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.*