Comparison

Luminos vs The Sky Pro by Redshift

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

Head to head
About

Luminos

This astronomy companion app, after 12 years of updates, is being retired. A more advanced version, Luminos Pro, is available with new features and ongoing support. This version remains accessible for existing users.

Highlights
  • Astronomy software
  • 12 years of updates
  • Retired version
  • Advanced version available (Luminos Pro)
  • Continued support for existing customers
Features
Read full description

Thank you for being a part of my journey with Luminos! As I strive to bring you the best in astronomical software, I want to let you know that, after 12 years of updates, this version of Luminos will be retired in 2023. But there's exciting news: I've developed Luminos Pro, an advanced version that offers even more amazing features and updates. To continue providing support and updates to my existing customers, this version will stay available in the App Store for now. I invite you to explore my latest features and designs in Luminos Pro and join me on this continuing adventure. See you in the stars! Clear skies, - John

About

The Sky Pro by Redshift

Explore the cosmos with a comprehensive planetarium and knowledge base. Discover celestial objects, track their movements, and plan your observations. Features include augmented reality, 3D models, and educational content.

Highlights
  • Award-winning planetarium with 100,000+ stars
  • Accurate simulation of celestial phenomena
  • Real-time satellite tracking
  • Augmented reality sky view
  • 3D models of celestial objects
  • Telescope control (with subscription)
Features
Read full description

The Sky Pro by Redshift is your tool and your knowledge base when it comes to cosmic objects. Planets and moons, asteroids and comets, stars and deep-sky objects - explore the night sky and enjoy astronomy with The Sky Pro. Discover fascinating celestial objects and learn more about them. See what is happening in the sky tonight or travel through time to observe the objects on their orbits and to see how the constellations in the sky change. Features: • Award-winning planetarium with over 100,000 stars, 10,000 spectacular deep-sky objects and thousands of other celestial objects • Explore the night sky with unique brilliance and precision • Determine rising and setting times and plan your observations • Travel through time • Accurate simulation of planetary orbits, solar and lunar eclipses, conjunctions and many other celestial phenomena • Real-time tracking of satellites and space missions • Free update service to get the latest orbital data for satellites, comets and asteroids • Augmented reality to merge the sky in Redshift and the surrounding environment • Fascinating 3D models of the planets, moons, asteroids and many deep-sky objects • Land on the planets and moons to observe the sky from there • Breathtaking space flights to planets, moons and stars as well as distant galaxies and colorful nebulae • Comprehensive scientific data on celestial objects and their position, transit and visibility • Wide range of functions, yet easy to use • Numerous sky view settings, including a "Night View" option • "Today's Night Sky" and "My Favorites" show you what's going on in the sky tonight • Calendar for planning observation of solar and lunar eclipses • 25 interesting and educational chapters of "Discover Astronomy" • Share your most spectacular Redshift experiences via iMessage • Apple Watch connectivity helps you observe the sky Would you like to use this app as a professional tool for controlling your telescope? Extend the app with the professional subscription The Sky Ultimate and get one of the most powerful planetariums in the world. Configure your own sky views, find your perfect observation targets among millions of celestial objects, control your telescope, make fascinating journeys into space and experience the heavenly bodies up close. Features of The Sky Ultimate: • Your daily assistant for successful sky observation • Huge database with more than 2,500,000 stars and 70,000 deep-sky objects • Online access to more than one billion stars from the USNO-B1.0 and GAIA DR3 catalogues • Powerful sky calendar and precise location and visibility data for all objects • Telescope control for Meade or Celestron telescopes (except Celestron NexStar Evolution series) • Notifications so you never miss a celestial event • Ability to save an unlimited number of sky views with the option to send them to friends or reopen them in Redshift • Professional solar eclipse map showing the exact path of the Moon's shadow across the Earth's surface • Simulation of brightness variations of new stars and supernovae • Database of stars with exoplanets • Calculation of the trajectories of asteroids and comets with the unique numerical integration • Ability to select the exact landing site on a planet or moon • Tracking of the exact trajectory of satellites above the Earth ***** 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/en/terms-of-use/ *****

Screenshots

Luminos4 screens
The Sky Pro by Redshift4 screens

Verdict

The call

The clearest difference is price: The Sky Pro by Redshift at $6.99 against Luminos's $19.99. Luminos's advantage is in-app purchases (none vs 3) and review sentiment (91% vs 62%). On rating, ads, device support and iOS requirement 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

Luminos costs $19.99 and The Sky Pro by Redshift $6.99 up front. The Sky Pro by Redshift sells 3 in-app purchases, starting at $1.99 per month. Luminos asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.8 for Luminos against 4.8 for The Sky Pro by Redshift. Both are backed by a comparable volume of ratings — 1.1K and 335 respectively. Written reviews are what separate them: 91% of Luminos's written reviews are positive against 62% of The Sky Pro by Redshift's.

UpkeepUpdate frequency

Luminos ships an update every 2 weeks, The Sky Pro by Redshift every 2 months. Both last shipped on September 25, 2026.

Scorecard6 real differences · 4 level
Luminos versus The Sky Pro by Redshift: the parameters behind the verdict, then further details
ParameterLuminosThe Sky Pro by Redshift
Price$19.99$6.99 — better
Rating4.8 (1.1K ratings)4.8 (335 ratings)
Positive reviews90.6% of reviews — better61.5% of reviews
Number of ratings1.1K — better335
Update frequencyEvery 2 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, Apple WatchiPhone, iPad, iPod, Apple Watch — better
Requires iOS16.615.6 — better
Further details — not scored
Size930 MB1.1 GB
Age rating4+4+
DeveloperWobbleworks LLCUnited Soft Media Verlag GmbH

Customer experience

Luminos

All ratings1,080 ratings
Positive96.5%
Neutral0.9%
Negative2.6%
Written reviews299 reviews
Positive90.6%
Neutral3.0%
Negative6.4%

The Sky Pro by Redshift

All ratings335 ratings
Positive96.1%
Neutral1.5%
Negative2.4%
Written reviews52 reviews
Positive61.5%
Neutral7.7%
Negative30.8%

User reviews

Luminos

From 1.1K App Store ratings

What we love

  • 🌟 Excellent astronomy app
  • 🔭 Comprehensive features and information
  • 🌌 Beautiful and intuitive interface
  • 🔍 Helpful for both beginners and advanced users
  • 🌍 Accurate tracking of celestial objects and satellites

Room to improve

  • 🐛 Occasional crashes or freezes
  • 🔧 Difficulty configuring for use with telescopes
  • 🔒 Concerns about subscription model changes
  • 🔍 Steep learning curve for some features
  • 🔍 Lack of instructions or user guide

The Sky Pro by Redshift

From 335 App Store ratings

What we love

  • ✨ Nice fresh look
  • 👍 User-friendly interface
  • 🚀 Fast and responsive
  • 🔭 Detailed astronomical data
  • 🌌 Immersive 3D flights

Room to improve

  • 💸 Expensive subscription model
  • 💰 Double charging for purchases
  • 🤔 Vague upgrade details
  • 📉 Old version removed
  • 😕 Limited free trial

Bugs and requests

Luminos

Reported bugs

4 issues
  • Motion tracking and compass not working properly
  • Saved telescope settings erased after updates
  • Slow response times and location detection issues
  • Inconsistent behavior when tapping on objects

Requested features

8 requests
  • Add historical constellations
  • Integrate national borders when searching
  • Include exoplanets information
  • Improve motion tracking and orientation
  • Add observation forecast based on weather conditions
Show 3 more
  • Provide automatic sky rotation to match the real-time view
  • Enhance moon surface details and shadows
  • Add ability to center on objects while in orbit mode

The Sky Pro by Redshift

Reported bugs

31 issues
  • App crashes on launch
  • App crashes on iPad
  • Compass calibration issues (20° off)
  • Settings reset to default sporadically
  • Ultimate trial expired before fix
Show 26 more
  • No reply from developer
  • Ultimate trial cannot be used again
  • Ultimate trial didn't add features
  • Ultimate version not unlocking
  • App frozen on launch screen
  • Login issues
  • Information inaccurate (sun rise, moon phase)
  • Follow sky error message
  • App not working
  • Cannot see anything on display
  • Sky scan not possible
  • Time option limited to 1600 AD
  • Telescope control lost on reinstallation
  • Extended time frames lost on reinstallation
  • App not opening
  • Himmelscan not correct
  • App not activating after review
  • Constellation lines delay
  • Comet Atlas C/2019 Y4 not appearing
  • Famous comets only in subscription
  • Does not retain preference settings
  • Crashes when search icon is hit
  • Spacecraft section disappeared
  • Conjunction and meteor shower info missing
  • Rocket button placement issue
  • App freezes on launch screen with spinning loader

Requested features

19 requests
  • More details on Ultimate upgrade
  • Ability to fly to other galaxies
  • More distant stars accessible
  • Add JWST
  • More range to view universe
Show 14 more
  • Rotate universe from greater distance
  • Add nearby galaxies (LMC, SMC, Andromeda)
  • Always show constellation images
  • Add conjunction and meteor shower info
  • More flexible subscription options
  • Show planets visible and when, moon rise/set, best deep sky objects in 'Today's Sky'
  • Add more satellites
  • Add Telrad view finder
  • More observable comets
  • Add spacecraft section
  • More detailed information on celestial objects
  • Add Jupiter, Uranus, Neptune rings
  • Add constellations outside Milky Way
  • Update cosmological data

In-app purchases

None

Luminos

No in-app purchases

3 purchases

The Sky Pro by Redshift

Subscriptions2
  • The Sky Ultimate 1 Month$1.991 Month
  • The Sky Ultimate 1 Year$9.991 Year
One-time1
  • The Sky Ultimate$22.99

Questions

Is Luminos free?
Luminos costs $19.99, with no in-app purchases.
Is The Sky Pro by Redshift free?
The Sky Pro by Redshift costs $6.99, and also offers in-app purchases.
Which has better reviews, Luminos or The Sky Pro by Redshift?
Luminos and The Sky Pro by Redshift are both rated 4.8 out of 5 on the App Store, from 1.1K and 335 ratings respectively.
Do Luminos or The Sky Pro by Redshift have ads?
Neither Luminos nor The Sky Pro by Redshift shows ads.
Which is updated more often, Luminos or The Sky Pro by Redshift?
Luminos ships an update every 2 weeks, and The Sky Pro by Redshift every 2 months. Most recently, Luminos was updated on September 25, 2026 and The Sky Pro by Redshift on September 25, 2026.

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