SDO Viewer vs Hubble
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SDO Viewer
Access and view the latest images from the Solar Dynamics Observatory. Receive push notifications when new images become available, keeping you updated on solar activity.
- Download SDO images
- Display latest solar images
- Push notifications for new images
- Courtesy of NASA/SDO science teams
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SDO Viewer is a simple application for downloading and displaying the latest images taken by the Solar Dynamics Observatory (SDO). It includes push notifications so you can be notified by a badge on the application when new images are available. SDO Viewer, by the creator of SoHO Viewer. Courtesy of NASA/SDO and the AIA, EVE, and HMI science teams.
Hubble
Explore the universe with stunning images and videos from the Hubble Space Telescope. Discover detailed information about deep space objects and view 3D models. Enjoy an immersive educational experience.
- Browse 550+ high-resolution space photos
- Detailed information on space objects
- Full-screen slideshow mode
- Zoomable image gallery
- 220+ educational videos
- Interactive 3D models
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With the "Hubble: Deep Space 2" application, our aim is to provide you with the information obtained from current researches about 'the Universe' in a compact way. Here you will find many fascinating images, some of which you will want to examine in detail and some you will want to read in detail. You will have a nice user experience and obtain detailed information while navigating through the beautiful photos taken by Hubble Space Telescope. FEATURES • In the "Browse" section, you will be able to quickly browse through hundreds of photos (550+) and also read detailed information about them. • In the "SlideShow" section, you will be able to browse through hundreds of impressive photos in full screen size and feel as if you were in the orbit at that moment. If you wish, you will be able to get detailed information about these impressive sights by tapping the Info button. • In the "Gallery" section, you will be able to see all the photos impressively, show what you want in full screen and when you want to examine them in detail, you can zoom in with the help of your fingers. • For those who do not want to be contented with just beautiful photos, there are many videos (220+) in the "Videos" section. • You will get detailed information about "Deep Space Objects", • You will also find three-dimensional models in the "3D" section.
Screenshots
Verdict
SDO Viewer and Hubble both sit at 3.0 stars, but that hides the real split: 60% of SDO Viewer's written reviews are positive against 0% of Hubble's. SDO Viewer also leads on in-app purchases (none vs 1) and ads (none vs shown). On price, rating, ratings volume 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
Both are free to download. Hubble sells 1 one-off in-app purchase. SDO Viewer asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 3.0 for SDO Viewer against 3.0 for Hubble. Both are backed by a comparable volume of ratings — 5 and 2 respectively. Written reviews are what separate them: 60% of SDO Viewer's written reviews are positive against 0% of Hubble's.
SDO Viewer ships an update every 2 months, Hubble every 23 months. The most recent releases landed on October 7, 2026 and October 16, 2026 respectively.
| Parameter | SDO Viewer | Hubble |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (5 ratings) | 3.0 (2 ratings) |
| Positive reviews | 60.0% of reviews — better | 0.0% of reviews |
| Number of ratings | 5 — better | 2 |
| Update frequency | Every 2 months — better | Every 23 months |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 | 13.0 |
| Further details — not scored | ||
| Size | 6 MB | 1.7 GB |
| Age rating | 4+ | 9+ |
| Developer | Jérôme Diaz | Alparslan Topbas |
Customer experience
SDO Viewer
Hubble
In-app purchases
SDO Viewer
No in-app purchases
Hubble
- Hubble: Deep Space 2 - Ad-Free$0.99
Questions
Is SDO Viewer free?
Is Hubble free?
Which has better reviews, SDO Viewer or Hubble?
Do SDO Viewer or Hubble have ads?
Which is updated more often, SDO Viewer or Hubble?
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