Comparison

Hubble vs Space Telescope App

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

Head to head
About

Hubble

Explore the universe in high definition with stunning images from the Hubble Space Telescope. Discover galaxies, nebulae, and star clusters with detailed descriptions and an immersive slideshow experience. Stay updated with the latest cosmic discoveries.

Highlights
  • High-resolution cosmic image gallery
  • Immersive slideshow mode
  • Searchable database of celestial objects
  • Detailed scientific descriptions
  • Real-time updates for 'Picture of the Week'
  • Links to NASA/ESA archives
Features
Read full description

Embark on a breathtaking journey across the universe with Hubble. Experience the awe-inspiring beauty of deep space through the lens of the world’s most famous space telescope. From distant galaxies to colorful nebulae, the Hubble Cosmic Gallery brings the majesty of the cosmos directly to your fingertips in stunning high resolution. Fresh from Hubble: Stay updated with the "Picture of the Week." Our real-time ESA/Hubble RSS integration ensures you never miss a new cosmic discovery. Immense HD Library: Browse a curated collection of the most iconic Hubble images. Explore star clusters, supernova remnants, and the farthest reaches of the observable universe. Immersive Slideshow: Turn your device into a window to the stars. Enjoy a seamless, auto-playing slideshow experience with ambient transitions and deep-space vibes. Search & Discover: Looking for a specific nebula or galaxy? Use our lightning-fast search to find exactly what you're looking for among hundreds of high-res entries. Premium UI/UX: Designed with SwiftUI, featuring elegant glassmorphism effects, parallax carousels, and tactical haptic feedback for a truly premium feel. Learn as You Explore: Every image comes with detailed scientific descriptions and direct links to official NASA/ESA archives for those who want to dive deeper into the science. Whether you’re a space enthusiast, a student of astronomy, or simply someone who appreciates the beauty of our universe, Hubble provides a specialized, clutter-free experience for celestial exploration. Download Hubble today and witness the grandeur of the stars like never before.

About

Space Telescope App

Explore the universe with real-time updates and stunning visuals from NASA's James Webb Space Telescope. Engage with expert insights, join community discussions, and test your knowledge with interactive quizzes. Discover distant galaxies and unlock the secrets of the early universe.

Highlights
  • Live mission updates
  • Breathtaking image gallery
  • Expert Q&A with astronomers
  • Community discussions
  • Interactive space quizzes
  • 3D solar system explorer
  • Exclusive wallpapers
Features
Read full description

Space Telescope is an astronomy app for people who actually go outside and look up. See what the James Webb Space Telescope is observing right now. Decide whether tonight is worth staying out for. Catch the next visible ISS pass over your own location, and follow the rocket launches coming up. WHAT WEBB IS LOOKING AT, RIGHT NOW Webb's current target, science category, proposal, instruments and scheduled times, refreshed every five minutes while the view is open. Tap through to the proposal or the full observation schedule. A REAL PLAN FOR METEOR NIGHT Most meteor apps hand you a peak date. This one tells you what you will actually see. Set your location and how dark your sky is, and get an honest meteors-per-hour range, the best viewing window, where to look, how much the Moon will wash out, and what 30, 60 or 90 minutes outside is likely to be worth. Two alerts that matter: a heads-up the evening before, and a nudge when your window opens. Cloud cover is not included, so check the weather before you commit. THE ISS, OVER YOUR HOUSE Live position, altitude, velocity and orbit, plus crew, expeditions, dockings and visiting vehicles. Seven days of passes for your location with quality, direction, peak elevation and duration - set a 10-minute alert or drop the pass straight into your calendar. LAUNCH DAY Upcoming launches with live countdowns, status, provider, rocket, pad, launch window and webcast link. One tap for a reminder 15 minutes before liftoff. GALLERIES WORTH SCROLLING Imagery and mission guides for James Webb, Hubble, Chandra, the Nancy Grace Roman Space Telescope, Artemis, Mars and the ISS. Follow Roman's countdown, instruments and journey to L2. Pinch to zoom, save, share, like and comment. Turn on alerts only for the galleries you care about. PICTURE OF THE DAY NASA's Astronomy Picture of the Day, image or video, with the full expert explanation and an optional daily alert. AND WHEN YOU WANT MORE - Tonight Sky: sunrise, sunset, Moon phase, illumination and twilight - Space Weather: Kp index, solar wind, aurora probability and active alerts - Cosmic Calendar: meteor showers, eclipses and other sky events - Exoplanets: discovery method and year, distance, orbit, mass, radius, temperature, host star and habitable-zone marker - Community astrophotography: post your own shots with gear and conditions - Space wallpapers for your phone - Quizzes, points, levels and global leaderboards - Ask an Astronomer, and live chat rooms in 10 languages - Full interface in English and Spanish PREMIUM Space Telescope is free, with ads. Premium removes every ad, unlocks the premium wallpaper collection and adds a gold avatar ring. Choose a monthly or annual subscription, or pay once for lifetime access, which also grants 1,000,000 points and Diamond level straight away. Subscriptions are charged to your Apple Account and renew automatically unless auto-renew is turned off at least 24 hours before the current period ends. Manage or cancel in your Apple Account settings. Whether you follow Webb every day, plan a Perseids or Geminids watch, photograph the night sky, teach astronomy, or just want to know when the ISS will cross overhead, Space Telescope keeps the useful details in one place. Space Telescope is an independent astronomy app and is not affiliated with or endorsed by NASA, ESA, STScI, SpaceX or any launch provider. Data and imagery are credited to their respective sources. Privacy policy: https://jameswebbtracker.com/privacy-policy Terms of use (Apple standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Hubble4 screens
Space Telescope App4 screens

Verdict

The call

The clearest difference is review sentiment: Space Telescope App at 40% against Hubble's 0%. Space Telescope App also leads on update cadence (every 10 days vs every 6 weeks) and ratings volume (30 vs 7). Hubble's advantage is in-app purchases (none vs 4) and rating (4.3 vs 4.0). On price, 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. Space Telescope App sells 4 in-app purchases, starting at $4.99 per month. Hubble asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Hubble holds the better App Store score, 4.3 against 4.0. Both are backed by a comparable volume of ratings — 7 and 30 respectively. Written reviews complicate that: 0% of Hubble's written reviews are positive against 40% of Space Telescope App's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Hubble ships an update every 6 weeks, Space Telescope App every 10 days. The most recent releases landed on September 11, 2026 and September 25, 2026 respectively.

Scorecard7 real differences · 3 level
Hubble versus Space Telescope App: the parameters behind the verdict, then further details
ParameterHubbleSpace Telescope App
PriceFreeFree
Rating4.3 (7 ratings) — better4.0 (30 ratings)
Positive reviews0.0% of reviews40.0% of reviews — better
Number of ratings730 — better
Update frequencyEvery 6 weeksEvery 10 days — better
AdsYesYes
In-app purchasesNo — betterYes
MonetizationAd-supported — betterFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.015.0 — better
Further details — not scored
Size1.7 GB104 MB
Age rating9+4+
DeveloperAlparslan TopbasKAKHA GIORGASHVILI

Customer experience

Hubble

All ratings7 ratings
Positive85.7%
Neutral0.0%
Negative14.3%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Space Telescope App

All ratings30 ratings
Positive73.3%
Neutral6.7%
Negative20.0%
Written reviews30 reviews
Positive40.0%
Neutral10.0%
Negative50.0%

In-app purchases

None

Hubble

No in-app purchases

4 purchases

Space Telescope App

Subscriptions2
  • Monthly Ad-Free Plan$4.991 Month
  • Ad-Free Annual Access$29.991 Year
One-time2
  • Premium$2.99
  • Buy 1M Points$99.99

Questions

Is Hubble free?
Hubble is free to download, with no in-app purchases.
Is Space Telescope App free?
Space Telescope App is free to download, with in-app purchases available.
Which has better reviews, Hubble or Space Telescope App?
Hubble is rated higher. Hubble averages 4.3 out of 5 from 7 ratings, while Space Telescope App averages 4.0 from 30 ratings.
Do Hubble or Space Telescope App have ads?
Both Hubble and Space Telescope App show ads.
Which is updated more often, Hubble or Space Telescope App?
Hubble ships an update every 6 weeks, and Space Telescope App every 10 days. Most recently, Hubble was updated on September 11, 2026 and Space Telescope App on September 25, 2026.

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