SDO Viewer vs Airbus A320 Systems Trainer
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.
Airbus A320 Systems Trainer
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This is an Airbus A320 series application covering in depth all the flight system displays screens including the Engine Warning Display. Each system screen has been recreated with high definition images to show every possible parameter for illustration and training purposes. Each symbol, value and schematic part of the systems is explained in full details. All information is derived from official Airbus documentation for you. The Application covers both the A320 CEO and NEO variants. Where differences exist these are clearly shown within the presented study material. Further images of all sub parts within the systems pages are represented also within the data where necessary for better explanation. The system displays covered include: EWD, Cruise, Engine, Bleed, Cabin Pressure, Electrics, Hydraulics, Fuel, APU, Air Conditioning, Doors/Oxygen, Wheels and Flight Controls. See screen shots provided for example screens. This Airbus training application is a must have for any current pilot flying the line and those training on it, including type rating cadets. Designed to access vital information fast and accurately regarding the complex systems data presented in the flight deck. The application is to be used for training purposes only. It is NOT for operational use.
Screenshots
Verdict
The clearest difference is price: SDO Viewer at Free against Airbus A320 Systems Trainer's $39.99. Airbus A320 Systems Trainer's advantage is update cadence (every 4 days vs every 2 months). On ads, in-app purchases, device support and iOS requirement 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
SDO Viewer is free to download; Airbus A320 Systems Trainer costs $39.99 up front. Neither carries in-app purchases, so what you see is what you pay.
SDO Viewer ships an update every 2 months, Airbus A320 Systems Trainer every 4 days. The most recent releases landed on October 26, 2026 and October 10, 2026 respectively.
| Parameter | SDO Viewer | Airbus A320 Systems Trainer |
|---|---|---|
| Price | Free — better | $39.99 |
| Rating | 2.7 (6 ratings) — better | — |
| Positive reviews | 60.0% of reviews | — |
| Number of ratings | 6 — better | — |
| Update frequency | Every 2 months | Every 4 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 | 13.0 |
| Further details — not scored | ||
| Size | 6 MB | 56 MB |
| Age rating | 4+ | 4+ |
| Developer | Jérôme Diaz | faraz sheikh |
In-app purchases
SDO Viewer
No in-app purchases
Airbus A320 Systems Trainer
No in-app purchases
Questions
Is SDO Viewer free?
Is Airbus A320 Systems Trainer free?
Do SDO Viewer or Airbus A320 Systems Trainer have ads?
Which is updated more often, SDO Viewer or Airbus A320 Systems Trainer?
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