Comparison

SoHO Viewer vs Hubble

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

Head to head
About

SoHO Viewer

Access and view the latest images from the Solar and Heliospheric Observatory (SoHO). Receive push notifications when new images are available, keeping you updated on solar activity. This app is a convenient tool for anyone interested in space imagery.

Highlights
  • Download latest SoHO images
  • Display solar images
  • Push notifications for new images
  • Badge notification for new images
  • Image courtesy of SOHO consortium
Features
Read full description

SoHO Viewer is a simple application for downloading and displaying the latest images taken by the Solar and Heliospheric Observatory (SoHO). It includes push notifications so you can be notified by a badge on the application when new images are available. It was quoted as “one of the ten best free applications to have on your iphone if you like stargazing:” http://www.networkworld.com/news/2010/112210-free-iphone-stargazing-apps.html It appears in Mars 2015 edition of Sky And Telescope, page 70. Images are courtesy of SOHO consortium. SOHO is a project of international cooperation between ESA and NASA. If you had like to see images taken by Solar Dynamics Observatory (SDO) please use the SDO Viewer application.

About

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.

Highlights
  • Browse 550+ high-resolution space photos
  • Detailed information on space objects
  • Full-screen slideshow mode
  • Zoomable image gallery
  • 220+ educational videos
  • Interactive 3D models
Features
Read full description

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

SoHO Viewer4 screens
Hubble4 screens

Verdict

The call

The clearest difference is review sentiment: SoHO Viewer at 69% against Hubble's 0%. SoHO Viewer also leads on in-app purchases (none vs 1) and ads (none vs shown). On price, 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

Both are free to download. Hubble sells 1 one-off in-app purchase. SoHO Viewer asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

SoHO Viewer holds the better App Store score, 3.4 against 3.0. That said, the two scores are not equally well evidenced: SoHO Viewer has 19 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 69% of SoHO Viewer's written reviews are positive against 0% of Hubble's.

UpkeepUpdate frequency

SoHO Viewer ships an update every 2 months, Hubble every 23 months. The most recent releases landed on October 21, 2026 and October 16, 2026 respectively.

Scorecard7 real differences · 3 level
SoHO Viewer versus Hubble: the parameters behind the verdict, then further details
ParameterSoHO ViewerHubble
PriceFreeFree
Rating3.4 (19 ratings) — better3.0 (2 ratings)
Positive reviews69.1% of reviews — better0.0% of reviews
Number of ratings19 — better2
Update frequencyEvery 2 months — betterEvery 23 months
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.013.0
Further details — not scored
Size5 MB1.7 GB
Age rating4+9+
DeveloperJérôme DiazAlparslan Topbas

Customer experience

SoHO Viewer

All ratings19 ratings
Positive57.9%
Neutral5.3%
Negative36.8%
Written reviews68 reviews
Positive69.1%
Neutral10.3%
Negative20.6%

Hubble

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

SoHO Viewer

No in-app purchases

1 purchases

Hubble

One-time1
  • Hubble: Deep Space 2 - Ad-Free$0.99

Questions

Is SoHO Viewer free?
SoHO Viewer is free to download, with no in-app purchases.
Is Hubble free?
Hubble is free to download, with in-app purchases available.
Which has better reviews, SoHO Viewer or Hubble?
SoHO Viewer is rated higher. SoHO Viewer averages 3.4 out of 5 from 19 ratings, while Hubble averages 3.0 from 2 ratings.
Do SoHO Viewer or Hubble have ads?
Hubble shows ads; SoHO Viewer does not.
Which is updated more often, SoHO Viewer or Hubble?
SoHO Viewer ships an update every 2 months, and Hubble every 23 months. Most recently, SoHO Viewer was updated on October 21, 2026 and Hubble on October 16, 2026.

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