SDO Viewer vs Spitzer Gallery
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.
Spitzer Gallery
Explore stunning images captured by NASA's Spitzer Space Telescope. This app offers a gallery of the telescope's mission images, media feeds, and search functionality. View, save, and share high-resolution infrared images.
- Gallery of latest Spitzer images
- Spitzer, JPL, and NASA media feed
- Search images and media
- Full screen image view with pan/zoom
- Share images and links
- Save images to device
- Auto dark/light mode
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On January 30th 2020, NASA's Spitzer Space Telescope will complete its mission. The Spitzer Gallery provides a gallery of images generated by the telescope over the mission lifetime. App Features: - Latest Spitzer Images from NASA Image Archive - Latest Spitzer, JPL and NASA media feed - Search both images and media feed - Full screen image view of Spitzer images with pan/zoom - Share image to Facebook, Instagram, Snapchat, Messages, E-Mail, etc. - Save image to your photos library - Share link to Facebook, Instagram, Snapchat, Messages, E-Mail, etc. - Auto Dark/Light mode based on your iOS Settings preference The Spitzer Space Telescope is the final mission in NASA's Great Observatories Program - a family of four space-based observatories, each observing the Universe in a different kind of light. The other missions in the program include the visible-light Hubble Space Telescope (HST), Compton Gamma-Ray Observatory (CGRO), and the Chandra X-Ray Observatory (CXO). Spitzer is designed to detect infrared radiation, which is primarily heat radiation.
Screenshots
Verdict
The clearest difference is rating: Spitzer Gallery at 5.0 against SDO Viewer's 3.0. Spitzer Gallery also leads on update cadence (weekly vs every 2 months) and iOS requirement (10.0 vs 13.0). On price, ratings volume, 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.
Spitzer Gallery holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 5 and 3 respectively.
SDO Viewer ships an update every 2 months, Spitzer Gallery weekly. The most recent releases landed on October 7, 2026 and October 2, 2026 respectively.
| Parameter | SDO Viewer | Spitzer Gallery |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (5 ratings) | 5.0 (3 ratings) — better |
| Positive reviews | 60.0% of reviews | — |
| Number of ratings | 5 — better | 3 |
| Update frequency | Every 2 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 | 10.0 — better |
| Further details — not scored | ||
| Size | 6 MB | 78 MB |
| Age rating | 4+ | 4+ |
| Developer | Jérôme Diaz | Jose Chavez |
Customer experience
SDO Viewer
Spitzer Gallery
In-app purchases
SDO Viewer
No in-app purchases
Spitzer Gallery
No in-app purchases
