Comparison

Catálogo Messier vs MeMstar

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head

About

Catálogo Messier

Features

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Simple application to have the Messier catalogue of objects on your mobile phone and be able to consult its most relevant information. Add your favourite objects to the list of favourites for quicker access. Filter the list of objects by visibility according to your current location.

About

MeMstar

Features

Read full description

MeMstar est un dispositif de pointage pour télescope ne nécessitant aucune transformation matériel. L'application MeMstar permet de vous connecter au boitier MeMstar. Il vous donne un accès à plus de 15 000 objets stellaires comprenant les planètes, le catalogue Messier, NGC et les étoiles nommées.

Screenshots

Catálogo Messier4 screens

MeMstar4 screens

Verdict

The call

The clearest difference is in-app purchases: MeMstar at none against Catálogo Messier's 1. On price, update cadence, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Catálogo Messier sells 1 one-off in-app purchase. MeMstar asks for nothing beyond the download.

UpkeepUpdate frequency

Catálogo Messier ships an update every 7 months, MeMstar every 9 months. The most recent releases landed on November 7, 2026 and November 3, 2026 respectively.

Scorecard1 real difference · 5 level

Catálogo Messier versus MeMstar: the parameters behind the verdict, then further details
Parameter	Catálogo Messier	MeMstar
Price	Free	Free
Update frequency	Every 7 months — better	Every 9 months
Ads	No	No
In-app purchases	Yes	No — better
Devices	iPhone, iPad, iPod	iPhone, iPad, iPod
Requires iOS	15.6	14.0 — better
Further details — not scored
Size	19 MB	25 MB
Age rating	4+	4+
Developer	Pablo Morcillo Perez	Mickael Pannequin

In-app purchases

1 purchases

Catálogo Messier

One-time1

Messier Catalogue Pro$2.99

None

MeMstar

No in-app purchases

Questions

Is Catálogo Messier free?

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

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 7 months, and MeMstar every 9 months. Most recently, Catálogo Messier was updated on November 7, 2026 and MeMstar on November 3, 2026.