Comparison

Planet cards vs Project Planet Space

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

Head to head
About

Planet cards

Features
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Learn Astronomy in a visual and fun way. Answer the big questions about the Universe with powerful images. 3D animations of space, celestial bodies, Earth and spaceships. Planet cards is the educational toy and school materials to learn astronomy with the latest technology. Print the cards and download the app to see the universe just by pointing with your phone or tablet. Dozens of animations, hundreds of emotions on Planet cards. Explanatory texts in Spanish and English. An amazing experience. Get the cards at www.bodyplanet.es and download the app. - The origin of The Universe, The Milky Way and The Solar System - All the planets of The Solar System - The Moon, its phases and other satellites - The formation of the stars - Orbits, rotational and translational movements - The Earth: layers of the atmosphere and geosphere - Meridians, parallels, solstices and equinoxes - The conquest of space and the life of astronauts A different way of learning. The easiest way to discover the world we live in and other possible worlds. Planet cards is a fun, social and interactive toy. Explore in an exciting way, thanks to augmented reality. If you've had fun before with Body planet Magic T-shirt, Body cards and Welcome baby, now embark on a superb journey into the universe. In addition to having fun, you will learn without effort. Hide and discover with the buttons the areas of the galaxy that you want to explore. Find the names of the bodies that orbit in space and discover other possible worlds. Live an amazing experience with Planet cards. Put quality content on your screen.

About

Project Planet Space

Features
Read full description

Project Planet - an interactive map of our solar system How much would you weigh on Jupiter? Why does a day on Mercury last longer than its year? Project Planet turns space facts into a fingertip-sized journey. Scroll through all nine planets (Pluto included), feel each world's pull on your own body, and explore the numbers astronomers have spent decades collecting. Highlights - Sticky scroll across the system: from Mercury to Pluto, each planet stays centred long enough for you to take it in. - You, on every world: enter your weight and age once and watch them recalculated by each planet's gravity and orbital period. - Five rich widgets per planet: surface temperature with reference markers (Antarctica, freezing, boiling), atmospheric pressure with composition chart, travel times from Earth from walking up to the speed of light, gravitational force with everyday objects (phone, backpack, car), and an interactive pressure simulator with phase changes for water, oxygen, CO2, hydrogen, nitrogen and mercury (Antoine equation under the hood). - Six languages: Czech, English, German, Slovak, Spanish and French, auto-detected from your device. - Metric or imperial: switch instantly; weights, temperatures and distances follow your preference. - Crafted to feel like a small cosmic museum: dark cosmic theme, hand-tuned typography, subtle scroll choreography, and a right rail that lets you jump to any planet. - Built on real data: gravitational accelerations, orbital periods, NASA mean temperatures, atmospheric compositions and substance phase transitions. Requires an internet connection. The app runs as a continuously updated webview and uses native iOS capabilities such as haptic feedback to add a tactile dimension to your interstellar journey.

Screenshots

Planet cards3 screens
Project Planet Space4 screens

Verdict

The call

The clearest difference is in-app purchases: Project Planet Space at none against Planet cards's 1. Planet cards's advantage is update cadence (every 9 months vs every 25 months). On price, ads, device support and iOS requirement there is nothing between them.

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Planet cards sells 1 one-off in-app purchase. Project Planet Space asks for nothing beyond the download.

UpkeepUpdate frequency

Planet cards ships an update every 9 months, Project Planet Space every 25 months. The most recent releases landed on September 16, 2026 and May 16, 2026 respectively.

Scorecard2 real differences ยท 4 level
Planet cards versus Project Planet Space: the parameters behind the verdict, then further details
ParameterPlanet cardsProject Planet Space
PriceFreeFree
Update frequencyEvery 9 months โ€” betterEvery 25 months
AdsNoNo
In-app purchasesYesNo โ€” better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details โ€” not scored
Size351 MB2 MB
Age rating4+4+
DeveloperUniverso Body Planet S.L.Miroslav Hanzelka

In-app purchases

1 purchases

Planet cards

One-time1
  • Pro$19.99
None

Project Planet Space

No in-app purchases

Questions

Is Planet cards free?
Planet cards is free to download, with in-app purchases available.
Is Project Planet Space free?
Project Planet Space is free to download, with no in-app purchases.
Do Planet cards or Project Planet Space have ads?
Neither Planet cards nor Project Planet Space shows ads.
Which is updated more often, Planet cards or Project Planet Space?
Planet cards ships an update every 9 months, and Project Planet Space every 25 months. Most recently, Planet cards was updated on September 16, 2026 and Project Planet Space on May 16, 2026.

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