Comparison

Solar Walk Ads+:Planets System vs The Sky by Redshift

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

Head to head
About

Solar Walk Ads+:Planets System

Explore a 3D model of our solar system, interact with celestial bodies, and take virtual flights through space. Learn about planets, moons, satellites, and more with educational movies and real-time orientation. Discover the universe from your device.

Highlights
  • Interactive 3D solar system model
  • Real-time celestial body orientation
  • Virtual flights between space objects
  • Time travel to view past universe states
  • Educational solar system movies
  • 3D planetarium with anaglyph mode
Features
Read full description

Solar Walk Ads+ is an amazing 3D model of our Solar system bringing the universe to the palm of your hand and allowing you to interact with planets, satellites, moons, comets and other space objects anytime and anywhere. Start your fascinating journey through the realms of space and learn more about the universe we live in. *** Over 6 million users!*** *** National Parenting Publications Awards (NAPPA) - GOLD winner in the Educational Tools for Parents and Children category! *** *** A Parents’ Choice Gold Award Winner *** “Simply amazing.” - Macworld “Solar Walk serves up a visually impressive 3D model of our solar system. Set against a haunting, atmospheric soundscape, the app shows planets and satellites in their correct positions, and offers mini movies, facts and other related tidbits.” - TNW “This jaw-dropping app provides a wholly interactive 3D model of our solar system, one that’s had me hooked for days. It’s the kind of thing you can imagine a science teacher using in the classroom of the future — except that we don’t have to wait.” - CNet “Zoom from Mercury to Pluto (which makes the cut in this app), passing each planet’s moons along the way. Because Solar Walk knows what time it is, the planets are in proper orientation to the Sun: Earth is dark where it is currently night and gradually lightens to daytime on the other side.” - NY Times "It's great for showing my students the relative positions of the planets in the solar system, the satellites orbiting the Earth and our place in the galaxy. Awesome with a smartboard as well." - by jbrown61 Solar Walk Ads+ enables you to: ► Observe the 3D model of our Solar system with all its objects in real time and in a proper orientation. Turn into an astronomer and explore planets, moons, satellites, asteroids, dwarf planets, comets, stars and other celestial bodies. Enjoy gorgeous graphics and visuals while navigating through the solar system. ► Make virtual flights from one space object to another. ► Travel in time and see what the universe and our Solar system looked like at a certain period. ► Find an exciting view of the Milky Way Galaxy. ► Watch a collection of educational solar system movies to learn about space-related topics including Earth's moon phases, Earth's cycles, tidal phenomena, and zodiacal constellations. ► Enjoy 3D planetarium with the help of special glasses and activating the anaglyph mode. ► Share interesting screenshots of the app with your friends. ► Choose the view mode comfortable for you (orrery/true-to-scale). The app contains In-App Purchases. In-App Purchases won't remove ads from the application. Solar Walk Ads+ is a great educational tool appropriate for both adults and children. The amount of information users can learn about the planets, moons, satellites and other celestial bodies is impressive. All information is age-appropriate and detailed. Animated video clips will make learning about our Solar system even more engaging. Start exploring the universe with Solar Walk Ads+!

About

The Sky by Redshift

This app is a powerful yet easy-to-use planetarium that acts as your daily astronomy companion. Simply point your device at the sky to identify planets, stars, and constellations, and explore celestial objects with detailed views and informative explanations.

Highlights
  • Identify stars, planets, and constellations
  • Track celestial object paths
  • Simulate astronomical events
  • Explore deep-space objects
  • Learn about astronomical phenomena
  • Eclipse timetable and simulation
Features
Read full description

Developed in collaboration with THAMES & KOSMOS: The Sky – Astronomy, a powerful and easy-to-use planetarium – your daily companion for observing the sky! Which star is this? Where do I find Mars? Is it the ISS up there? Hold your smartphone or tablet up to the sky and see which planets, stars, or constellations are above you. Where is Jupiter and how can I find my zodiac in the sky? The Sky shows you the position of celestial objects in the sky with just a few taps. Get close-up views not only of near-Earth planets and moons, but also experience deep-space objects in stunning detail. What do the Saturnian moons look like? The Sky takes you on a breath-taking journey into the infinite realms of outer space. Fly to planets, stars, and other celestial bodies and let the app tell you about our Universe. What is a solar eclipse and what does an opposition of Mars mean? The Sky answers your questions with stunning animations and insightful explanations. Thus, even beginners will be able to understand the mechanics and to visually imagine the most important celestial events. No matter if you are a beginner or amateur astronomer, child or adult - with the intuitive app The Sky, everyone will immediately understand the sky - without much prior knowledge and long training. Shine with your knowledge of the sky, around the campfire or on night walks: with The Sky, astronomy will always be a pleasure! Discover the joy of watching the skies and the age-old fascination with space that has inspired mankind for millennia – and become part of the worldwide Redshift community. The app contains more than 9,000 stars, 88 constellations, hundreds of moons, asteroids and comets, as well as 200 spectacular deep-sky objects - all with accurate position calculation and motion tracking in real time. At a glance: • Recognize the stars and constellations of the night sky • Identify planets, moons, comets, and satellites and track their paths • Take breath-taking flights through space to distant stars and colorful nebulae • See what’s going on in the sky tonight with a direct simulation of the events • Learn to understand astronomical phenomena and events New in version 2.0: • Eclipse Timetable • Orbits of celestial objects • Expanded database with 6500 cities worldwide, including 2500 cities in the United States Were you able to witness the total solar eclipse in North America on April 8, 2024? This app contains everything you need know about this magical event: • Detailed description of the path of the eclipse in Mexico, the USA and Canada • Information on how to safely observe a solar eclipse • Eclipse timetable with the exact times for your location or best viewing position • Direct simulation of the eclipse in exciting animations • Sky map with the planets and stars that could be seen during the totality phase • Illustrated explanations of how a solar eclipse occurs • Everything about solar eclipses: Explanations and facts, illustrated with pictures and videos • Location selection via map, location search or GPS or selection of the "best position" for observation Your thirst for knowledge is not yet satisfied? With the premium subscription, you can activate many additional spaceflights and orbits as well as additional knowledge sections of "Discover astronomy". Here you can find more spectacular images and videos of the total solar eclipse on April 8, 2024. There is also an eclipse calendar with all solar and lunar eclipses between 1900 and 2100 and a guided tour of the U.S. MARS 2020 mission. This tour includes images and animations of the landing on Mars, as well as of the environment at the landing site of the Mars rover Perseverance. ***** Questions or suggestions for improvements: Mail to support@redshiftsky.com We are looking forward to your feedback! For more information on news and updates: redshiftsky.com www.redshiftsky.com/terms-of-use-the-sky/ *****

Screenshots

Solar Walk Ads+:Planets System4 screens
The Sky by Redshift4 screens

Verdict

The call

The clearest difference is ads: The Sky by Redshift at none against Solar Walk Ads+:Planets System's shown. The Sky by Redshift also leads on update cadence (every 2 months vs every 6 months). Solar Walk Ads+:Planets System's advantage is ratings volume (9.9K vs 817). On price, rating, review sentiment and in-app purchases 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. Solar Walk Ads+:Planets System sells 10 one-off in-app purchases and The Sky by Redshift sells 2 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.6 for Solar Walk Ads+:Planets System against 4.7 for The Sky by Redshift. That said, the two scores are not equally well evidenced: Solar Walk Ads+:Planets System has 9.9K ratings behind it against 817, so its average is the more settled of the two. Written reviews are what separate them: 73% of Solar Walk Ads+:Planets System's written reviews are positive against 65% of The Sky by Redshift's.

UpkeepUpdate frequency

Solar Walk Ads+:Planets System ships an update every 6 months, The Sky by Redshift every 2 months. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

Scorecard3 real differences · 7 level
Solar Walk Ads+:Planets System versus The Sky by Redshift: the parameters behind the verdict, then further details
ParameterSolar Walk Ads+:Planets SystemThe Sky by Redshift
PriceFreeFree
Rating4.6 (9.9K ratings)4.7 (817 ratings) — better
Positive reviews72.6% of reviews — better65.0% of reviews
Number of ratings9.9K — better817
Update frequencyEvery 6 monthsEvery 2 months — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.0 — better15.6
Further details — not scored
Size466 MB472 MB
Age rating4+4+
DeveloperVito Technology Inc.United Soft Media Verlag GmbH

Customer experience

Solar Walk Ads+:Planets System

All ratings9,750 ratings
Positive90.8%
Neutral4.0%
Negative5.2%
Written reviews413 reviews
Positive72.6%
Neutral6.3%
Negative21.1%

The Sky by Redshift

All ratings816 ratings
Positive94.5%
Neutral2.8%
Negative2.7%
Written reviews40 reviews
Positive65.0%
Neutral10.0%
Negative25.0%

User reviews

Solar Walk Ads+:Planets System

From 9.9K App Store ratings

What we love

  • 🚀 Realistic and detailed graphics
  • 🌌 Ability to explore the solar system
  • 📚 Informative and educational
  • 🎨 Beautiful background music
  • 🤩 Engaging and immersive experience

Room to improve

  • 💰 Expensive in-app purchases
  • 🔍 Limited free content
  • 🔌 High battery consumption
  • 🐛 Occasional crashes and glitches
  • 🚫 Intrusive ads even in paid version

The Sky by Redshift

From 817 App Store ratings

What we love

  • 🚀 Expertly done
  • 👍 Works well
  • 👍 Beautiful and accurate
  • 👍 Fun to use

Room to improve

  • 🔍 Too many ads
  • 🔍 Intrusive advertising
  • 🔍 Information banner not useful

Bugs and requests

Solar Walk Ads+:Planets System

Reported bugs

4 issues
  • App freezes on launch
  • Purchased content not restoring
  • Planets and moons not displaying properly
  • Frequent crashes when navigating the solar system

Requested features

5 requests
  • Ability to explore other galaxies and the universe
  • More interactive features like landing on planets
  • Removal of paywall for core content
  • Improved performance and stability
  • Customization options like dark mode

The Sky by Redshift

Reported bugs

1 issue
  • Unauthorized access to private systems

Requested features

3 requests
  • Red light option to preserve night vision
  • Smaller, less obtrusive pointer
  • More features and accurate information

In-app purchases

10 purchases

Solar Walk Ads+:Planets System

One-time10
  • The Earth Surface in detail$0.99
  • Launch of Hubble Telescope$0.99
  • 3D Satellites in Real Time$0.99
Show 7 more
  • Planets of the Solar System$0.99
  • High Resolution Bundle$1.99
  • Full Version$2.99
  • Missions Bundle$2.99
  • Movies Bundle$2.99
  • All Additional Content - Sale$2.99
  • Unlock Full Version With All Additional Content$7.99
2 purchases

The Sky by Redshift

Subscriptions2
  • The Sky Premium 1 Month$0.991 Month
  • The Sky Premium 1 Year$3.991 Year

Questions

Is Solar Walk Ads+:Planets System free?
Solar Walk Ads+:Planets System is free to download, with in-app purchases available.
Is The Sky by Redshift free?
The Sky by Redshift is free to download, with in-app purchases available.
Which has better reviews, Solar Walk Ads+:Planets System or The Sky by Redshift?
The Sky by Redshift is rated higher. Solar Walk Ads+:Planets System averages 4.6 out of 5 from 9.9K ratings, while The Sky by Redshift averages 4.7 from 817 ratings.
Do Solar Walk Ads+:Planets System or The Sky by Redshift have ads?
Solar Walk Ads+:Planets System shows ads; The Sky by Redshift does not.
Which is updated more often, Solar Walk Ads+:Planets System or The Sky by Redshift?
Solar Walk Ads+:Planets System ships an update every 6 months, and The Sky by Redshift every 2 months. Most recently, Solar Walk Ads+:Planets System was updated on November 6, 2026 and The Sky by Redshift on November 3, 2026.

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