# Sunlight Hours vs Heliosphere

The clearest difference is ads: Heliosphere at none against Sunlight Hours's shown. Sunlight Hours's advantage is iOS requirement (16.6 vs 18.0). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Sunlight Hours sells 7 one-off in-app purchases and Heliosphere sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly every 3 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | Sunlight Hours | 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 | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 days | Every 3 days |
| Monetization | — | Free |
| Size | 44 MB | 37 MB |
| Requires iOS | **16.6** | 18.0 |
| Devices | iPhone, iPad | **iPhone, iPad, Vision Pro** |
| Age rating | 17+ | 4+ |
| Developer | [NovaNext](https://appshunter.io/developer/1285557502) | [CHUNGKIL KIM](https://appshunter.io/developer/960187999) |

## What reviewers say

### Sunlight Hours

[App page](https://appshunter.io/ios/app/sunlight-hours/id6499107039)

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Coffee | $0.99 | one-time |
| Remove Ads | $0.99 | one-time |
| Donate $3 | $2.99 | one-time |
| Donate $5 | $4.99 | one-time |
| Donate $10 | $9.99 | one-time |
| Donate $15 | $14.99 | one-time |
| Donate $20 | $19.99 | one-time |


### 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 Sunlight Hours free?

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

### Is Heliosphere free?

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

### Do Sunlight Hours or Heliosphere have ads?

Sunlight Hours shows ads; Heliosphere does not.

### Which is updated more often, Sunlight Hours or Heliosphere?

Sunlight Hours ships an update every 3 days, and Heliosphere every 3 days. Most recently, Sunlight Hours was updated on October 24, 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.*