# C'M paris vs Astronomy

The clearest difference is update cadence: Astronomy at every 3 days against C'M paris's every 5 months. C'M paris's advantage is iOS requirement (11.0 vs 16.4). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

C'M paris ships an update every 5 months, Astronomy every 3 days. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | C'M paris | Astronomy |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 days** |
| Size | 63 MB | 141 MB |
| Requires iOS | **11.0** | 16.4 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [TANIA](https://appshunter.io/developer/1498282634) | [Pleiades Solutions](https://appshunter.io/developer/667994407) |

## What reviewers say

### C'M paris

[App page](https://appshunter.io/ios/app/cm-paris/id1498282635)

**Features:** macOS Compatibility

**In-app purchases:** none


### Astronomy

[App page](https://appshunter.io/ios/app/astronomy-sky-map/id6768699204)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is C'M paris free?

C'M paris is free to download, with no in-app purchases.

### Is Astronomy free?

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

### Do C'M paris or Astronomy have ads?

Neither C'M paris nor Astronomy shows ads.

### Which is updated more often, C'M paris or Astronomy?

C'M paris ships an update every 5 months, and Astronomy every 3 days. Most recently, C'M paris was updated on October 25, 2026 and Astronomy 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.*