SDO Viewer vs Mars LTE
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.
Mars LTE
Explore Mars with detailed information about the Perseverance rover's mission. Learn about its search for ancient life, sample collection, and technology testing for future human exploration. Discover the Ingenuity helicopter's groundbreaking flight capabilities.
- Perseverance rover mission details
- Search for ancient microbial life
- Core sample collection and storage
- Technology testing for human exploration
- Ingenuity helicopter flight information
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Launch Date : July 30, 2020 Landing Date : Feb. 18, 2021 Location: Jezero Crater, Mars The Mars 2020 Perseverance Rover will search for signs of ancient microbial life, which will advance NASA's quest to explore the past habitability of Mars. The rover has a drill to collect core samples of Martian rock and soil, then store them in sealed tubes for pickup by a future mission that would ferry them back to Earth for detailed analysis. Perseverance will also test technologies to help pave the way for future human exploration of Mars. Strapped to the rover's belly for the journey to Mars is a technology demonstration — the Mars Helicopter, Ingenuity, may achieve a "Wright Brothers moment “ by testing the first powered flight on the Red Planet.
Screenshots
Verdict
The clearest difference is rating: Mars LTE at 5.0 against SDO Viewer's 3.0. SDO Viewer's advantage is update cadence (every 2 months vs every 43 months) and ratings volume (5 vs 1). On price, ads, in-app purchases and monetization model 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.
Mars LTE holds the better App Store score, 5.0 against 3.0. That said, the two scores are not equally well evidenced: SDO Viewer has 5 ratings behind it against 1, so its average is the more settled of the two.
SDO Viewer ships an update every 2 months, Mars LTE every 43 months. The most recent releases landed on June 1, 2026 and June 7, 2026 respectively.
| Parameter | SDO Viewer | Mars LTE |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (5 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 60.0% of reviews | — |
| Number of ratings | 5 — better | 1 |
| Update frequency | Every 2 months — better | Every 43 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.4 |
| Further details — not scored | ||
| Size | 6 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Jerome Diaz | Taylan Atasoy |
Customer experience
SDO Viewer
Mars LTE
In-app purchases
SDO Viewer
No in-app purchases
Mars LTE
No in-app purchases
