# Planetary Weather vs Heliosphere

The clearest difference is review sentiment: Planetary Weather at 100% against Heliosphere's 50%. Planetary Weather also leads on rating (3.8 vs 3.0) and ratings volume (12 vs 2). Heliosphere's advantage is update cadence (every 3 days vs every 7 months) and monetization model (free vs free with in-app purchases). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Planetary Weather sells 2 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.

Planetary Weather holds the better App Store score, 3.8 against 3.0. That said, the two scores are not equally well evidenced: Planetary Weather has 12 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 100% of Planetary Weather's written reviews are positive against 50% of Heliosphere's.

Planetary Weather ships an update every 7 months, Heliosphere every 3 days. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Planetary Weather | Heliosphere |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.8 (12 ratings)](https://appshunter.io/ios/app/planetary-weather/id862963045/reviews)** | [3.0 (2 ratings)](https://appshunter.io/ios/app/heliosphere-solar-system/id6757491622/reviews) |
| Number of ratings | **12** | 2 |
| Positive reviews | **100.0% of reviews** | 50.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 3 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 118 MB | 37 MB |
| Requires iOS | **6.0** | 18.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Vision Pro |
| Age rating | 4+ | 4+ |
| Developer | [Technospirits](https://appshunter.io/developer/379836863) | [CHUNGKIL KIM](https://appshunter.io/developer/960187999) |

## What reviewers say

### Planetary Weather

[App page](https://appshunter.io/ios/app/planetary-weather/id862963045)

Explore real-time weather conditions on planets, moons, and the Sun in a stunning 3D solar system model. Get daily temperature and wind speed forecasts with accurate data.

**Highlights:** Daily temperature and wind speed forecasts, Data for planets, moons, and the Sun, Accurate estimates from NASA/NOAA, Stunning 3D solar system renders, Metric or Imperial units, High-quality graphics

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Gas Giants | $0.99 | one-time |
| Moon Pack | $1.99 | 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 Planetary Weather free?

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

### Is Heliosphere free?

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

### Which has better reviews, Planetary Weather or Heliosphere?

Planetary Weather is rated higher. Planetary Weather averages 3.8 out of 5 from 12 ratings, while Heliosphere averages 3.0 from 2 ratings.

### Do Planetary Weather or Heliosphere have ads?

Neither Planetary Weather nor Heliosphere shows ads.

### Which is updated more often, Planetary Weather or Heliosphere?

Planetary Weather ships an update every 7 months, and Heliosphere every 3 days. Most recently, Planetary Weather was updated on October 23, 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.*