# Olingua vs Heliosphere

The clearest difference is in-app purchases: Olingua at none against Heliosphere's 3. Olingua also leads on iOS requirement (15.6 vs 18.0). Heliosphere's advantage is update cadence (every 3 days vs every 2 weeks). On price, ads and device support there is nothing between them.

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

Olingua ships an update every 2 weeks, Heliosphere every 3 days. The most recent releases landed on October 20, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Olingua | 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 | No | No |
| Update frequency | Every 2 weeks | **Every 3 days** |
| Monetization | — | Free |
| Size | 112 MB | 37 MB |
| Requires iOS | **15.6** | 18.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Vision Pro |
| Age rating | 4+ | 4+ |
| Developer | [Vladimir Nosikov](https://appshunter.io/developer/1813440971) | [CHUNGKIL KIM](https://appshunter.io/developer/960187999) |

## What reviewers say

### Olingua

[App page](https://appshunter.io/ios/app/olingua/id6745717092)

**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 Olingua free?

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

### Is Heliosphere free?

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

### Do Olingua or Heliosphere have ads?

Neither Olingua nor Heliosphere shows ads.

### Which is updated more often, Olingua or Heliosphere?

Olingua ships an update every 2 weeks, and Heliosphere every 3 days. Most recently, Olingua was updated on October 20, 2026 and Heliosphere on October 24, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*