# SystemeSolaire vs Astris

The clearest difference is price: Astris at Free against SystemeSolaire's $1.99. Astris also leads on update cadence (every 3 months vs every 55 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Astris is free to download; SystemeSolaire costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

SystemeSolaire ships an update every 55 months, Astris every 3 months. The most recent releases landed on September 17, 2026 and May 16, 2026 respectively.

## The numbers

| Metric | SystemeSolaire | Astris |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 55 months | **Every 3 months** |
| Size | 596 MB | 21 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [NMS Narcisse Mavoha Solutions Sarl](https://appshunter.io/developer/963941606) | [ISTITUTI EDMONDO DE AMICIS SRL](https://appshunter.io/developer/1219261025) |

## What reviewers say

### SystemeSolaire

[App page](https://appshunter.io/ios/app/systemesolaire/id1440418549)

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

**In-app purchases:** none


### Astris

[App page](https://appshunter.io/ios/app/astris/id6454899891)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SystemeSolaire free?

SystemeSolaire costs $1.99, with no in-app purchases.

### Is Astris free?

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

### Do SystemeSolaire or Astris have ads?

Neither SystemeSolaire nor Astris shows ads.

### Which is updated more often, SystemeSolaire or Astris?

SystemeSolaire ships an update every 55 months, and Astris every 3 months. Most recently, SystemeSolaire was updated on September 17, 2026 and Astris on May 16, 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.*