# Catálogo Messier vs MeMstar

Catálogo Messier and MeMstar are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Catálogo Messier ships an update every 11 months, MeMstar every 9 months. The most recent releases landed on May 17, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | Catálogo Messier | MeMstar |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 9 months** |
| Size | 18 MB | 25 MB |
| Requires iOS | 14.0 | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Pablo Morcillo Perez](https://appshunter.io/developer/922855490) | [Mickael Pannequin](https://appshunter.io/developer/1688387073) |

## What reviewers say

### Catálogo Messier

[App page](https://appshunter.io/ios/app/catalogo-messier/id6443842540)

**Features:** macOS Compatibility

**In-app purchases:** none


### MeMstar

[App page](https://appshunter.io/ios/app/memstar/id6449255656)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Catálogo Messier free?

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

### Is MeMstar free?

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

### Do Catálogo Messier or MeMstar have ads?

Neither Catálogo Messier nor MeMstar shows ads.

### Which is updated more often, Catálogo Messier or MeMstar?

Catálogo Messier ships an update every 11 months, and MeMstar every 9 months. Most recently, Catálogo Messier was updated on May 17, 2026 and MeMstar on September 11, 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.*