Fasoo View vs SubStandard
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Fasoo View
Securely access and view documents, both plain and encrypted, on your mobile devices. This app enables secure communication and information sharing within a protected work environment, requiring prior certificate installation.
- Secure document access and checkout
- View plain and encrypted documents
- Secure communication and information sharing
- Attachment viewer for emails and browsers
- Watermark enforcement
- Zoom in/out functionality
- Page search and navigation
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Fasoo View Application allows users to download and check-out documents securely. It enables users to communicate and share information securely as well as view both plain and encrypted documents on the iPhone and iPad. Fasoo DRM is a smart and necessary security solution which enables a persistently protected work environment, allowing the work force to concentrate on the task at hand without compromising mobility and/or flexibility. *Caution : Fasoo View is allowed to be operated/used by users who install a certificate through FED-M in advance. Both encrypted documents and general documents may not be checked-out by uncertified users. Fasoo View is not intended for personal users. Key Features 1. Provide a document viewer via access control to each document 2. Attachment viewer for emails and browsers 3. Add search engine to documents being viewed through Fasoo View 4. Persistently enforce a visible or semitransparent watermark 5. Provide an ability to Zoom in/Zoom out 6. Easily search for a page, by entering the page number into the search page tool 7. Landscape/Portrait view mode option Supported File Applications - MS Word 97 ~ (*.doc, *.docx, *.dot, *.dotx) - MS PowerPoint 97 ~ (*.ppt, *.pptx, *.pps, *.ppsx. *.pot, *.potx) - MS Excel 97 ~ (*.xls, *.xlsx, *.xltx, *.csv) - Arae-A Hangul 97 ~ 3.0, 2002 ~ 2014 (*.hwp, *.hwpx) - Adobe PDF 1.2 ~ 1.7 (*.pdf) - Text file (*.txt, *.asc) - Image File (*.bmp, *.jpg, *.png, *.gif, *.wmf, *.emf, *.jpeg, *.tiff)
SubStandard
This aviation utility app simplifies applying cold temperature corrections for altitudes. It allows users to save frequently used altitude sets for rapid retrieval, enhancing efficiency in flight planning.
- Cold temperature corrections
- Altitude set storage
- Quick access to saved altitudes
- Easy to use interface
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SubStandard is an easy to use app to apply cold temperature corrections in aviation. Moreover, it lets you store sets of altitudes for quick access later on.
Screenshots
Verdict
Fasoo View and SubStandard both sit at 5.0 stars, but that hides the real split: 100% of Fasoo View's written reviews are positive against 0% of SubStandard's. Fasoo View also leads on update cadence (every 3 weeks vs every 7 months). SubStandard's advantage is iOS requirement (12.0 vs 15.0). On price, rating, ratings volume and ads 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.
On the App Store both sit at effectively the same score — 5.0 for Fasoo View against 5.0 for SubStandard. Both are backed by a comparable volume of ratings — 3 and 2 respectively. Written reviews are what separate them: 100% of Fasoo View's written reviews are positive against 0% of SubStandard's.
Fasoo View ships an update every 3 weeks, SubStandard every 7 months. The most recent releases landed on September 12, 2026 and September 9, 2026 respectively.
| Parameter | Fasoo View | SubStandard |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) | 5.0 (2 ratings) |
| Positive reviews | 100.0% of reviews — better | 0.0% of reviews |
| Number of ratings | 3 — better | 2 |
| Update frequency | Every 3 weeks — better | Every 7 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 110 MB | 33 MB |
| Age rating | 4+ | 4+ |
| Developer | Fasoo AI Co., Ltd. | iService Ottner Röck |
Customer experience
Fasoo View
SubStandard
In-app purchases
Fasoo View
No in-app purchases
SubStandard
No in-app purchases








