# SoHO Viewer vs Hubble

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.

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

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.

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.

## The numbers

| Metric | SoHO Viewer | Hubble |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.4 (19 ratings)](https://appshunter.io/ios/app/soho-viewer/id356679615/reviews)** | [3.0 (2 ratings)](https://appshunter.io/ios/app/hubble-deep-space-2/id1615227352/reviews) |
| Number of ratings | **19** | 2 |
| Positive reviews | **69.1% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 months** | Every 23 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 5 MB | 1.7 GB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Jérôme Diaz](https://appshunter.io/developer/334987620) | [Alparslan Topbas](https://appshunter.io/developer/1130875171) |

## What reviewers say

### SoHO Viewer

[App page](https://appshunter.io/ios/app/soho-viewer/id356679615)

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:** macOS Compatibility

**In-app purchases:** none


### Hubble

[App page](https://appshunter.io/ios/app/hubble-deep-space-2/id1615227352)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Hubble: Deep Space 2 - Ad-Free | $0.99 | one-time |


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*