# SoHO Viewer vs Hubble

The clearest difference is review sentiment: SoHO Viewer at 69% against Hubble's 0%. SoHO Viewer also leads on ads (none vs shown) and monetization model (free vs ad-supported). Hubble's advantage is rating (4.3 vs 3.4). On price, ratings volume, update cadence and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Hubble holds the better App Store score, 4.3 against 3.4. Both are backed by a comparable volume of ratings — 19 and 7 respectively. Written reviews complicate that: 69% of SoHO Viewer's written reviews are positive against 0% of Hubble's, so the app with the better star average is not the one people write more warmly about.

SoHO Viewer ships an update every 2 months, Hubble every 6 weeks. The most recent releases landed on July 21, 2026 and September 11, 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) | **[4.3 (7 ratings)](https://appshunter.io/ios/app/hubble-deep-space/id1545745146/reviews)** |
| Number of ratings | **19** | 7 |
| Positive reviews | **69.1% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 6 weeks** |
| Monetization | **Free** | Ad-supported |
| Size | 5 MB | 1.7 GB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 9+ |
| Developer | [Jerome 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/id1545745146)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## 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 no in-app purchases.

### Which has better reviews, SoHO Viewer or Hubble?

Hubble is rated higher. SoHO Viewer averages 3.4 out of 5 from 19 ratings, while Hubble averages 4.3 from 7 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 6 weeks. Most recently, SoHO Viewer was updated on July 21, 2026 and Hubble on September 11, 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.*