SoHO Viewer vs Astris
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Download latest SoHO images
- Display solar images
- Push notifications for new images
- Badge notification for new images
- Image courtesy of SOHO consortium
Read full descriptionHide 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.
Astris
Read full descriptionHide full description
This app allows to you discover our solar system with every planet, moons and asteroids and add it to your favorites. You will be able to have a 3d experience with the planets and the sun. Every text is accessible thanks to the speak screen.
Screenshots
Verdict
The clearest difference is iOS requirement: SoHO Viewer at 13.0 against Astris's 15.0. On price, update cadence, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
SoHO Viewer ships an update every 2 months, Astris every 3 months. The most recent releases landed on October 13, 2026 and October 6, 2026 respectively.
| Parameter | SoHO Viewer | Astris |
|---|---|---|
| Price | Free | Free |
| Rating | 3.4 (19 ratings) — better | — |
| Positive reviews | 69.1% of reviews | — |
| Number of ratings | 19 — better | — |
| Update frequency | Every 2 months — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 13.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 5 MB | 21 MB |
| Age rating | 4+ | 4+ |
| Developer | Jérôme Diaz | ISTITUTI EDMONDO DE AMICIS SRL |
In-app purchases
SoHO Viewer
No in-app purchases
Astris
No in-app purchases
