Comparison

PLANETARIUM vs MARSS

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

Head to head

About

PLANETARIUM

Discover the Solar System with this educational app. Explore planets, land on points of interest to learn more, and test your knowledge with quizzes. Embark on a cosmic journey and learn about our celestial neighbors.

Highlights

Explore the Solar System
Learn about planets
Interactive landing points
Knowledge-testing quizzes
Educational content

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Ciao Terrestre, benvenuto su Planetarium! Planetarium è l'APP che ti porta alla scoperta del Sistema Solare. Esplora con noi tutti gli otto pianeti + 1: ci sarà anche Plutone ex pianeta, ma che è sempre nei nostri cuori. Atterra sui punti di interessa e scopri di più sui nostri vicini di casa. Mettiti alla prova e rispondi ai quiz: al termine scoprirai quanto sei arrivato lontano. Buon viaggio LOfficina del Planetario

About

MARSS

Features

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MARSS inaugura una nuova modalità di visita in Realtà Aumentata del MusAB - Museo Astronomico di Brera; con le nuove tecnologie digitali gli strumenti della Galleria vi accompagneranno in un viaggio alla scoperta del loro legame con la storia, la città e le frontiere dell’astronomia. L’esperienza di visita, coinvolgente ed interattiva è stata realizzata grazie ad un finanziamento di Fondazione Cariplo, alle competenze del Politecnico di Milano e alle conoscenze dell’INAF – Osservatorio Astronomico di Brera; Stiamo ancora migliorando l'app e correggendo i bug che ci segnalate

Screenshots

PLANETARIUM4 screens

MARSS2 screens

Verdict

The call

The clearest difference is update cadence: MARSS at every 5 days against PLANETARIUM's every 49 months. On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

PLANETARIUM ships an update every 49 months, MARSS every 5 days. The most recent releases landed on October 8, 2026 and October 9, 2026 respectively.

Scorecard1 real difference · 7 level

PLANETARIUM versus MARSS: the parameters behind the verdict, then further details
Parameter	PLANETARIUM	MARSS
Price	Free	Free
Positive reviews	25.0% of reviews	—
Update frequency	Every 49 months	Every 5 days — better
Ads	No	No
In-app purchases	No	No
Monetization	Free	—
Devices	iPhone, iPad, iPod	iPhone, iPad, iPod
Requires iOS	11.0 — better	12.0
Further details — not scored
Size	195 MB	257 MB
Age rating	4+	4+
Developer	WAY Srl	INAF Osservatorio Astronomico di Brera

In-app purchases

None

PLANETARIUM

No in-app purchases

None

MARSS

No in-app purchases

Questions

Is PLANETARIUM free?

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

Is MARSS free?

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

Do PLANETARIUM or MARSS have ads?

Neither PLANETARIUM nor MARSS shows ads.

Which is updated more often, PLANETARIUM or MARSS?

PLANETARIUM ships an update every 49 months, and MARSS every 5 days. Most recently, PLANETARIUM was updated on October 8, 2026 and MARSS on October 9, 2026.