# Fasoo View vs SubStandard

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.

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.

## The numbers

| Metric | Fasoo View | SubStandard |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (3 ratings)](https://appshunter.io/ios/app/fasoo-view/id444651561/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/substandard/id1513656520/reviews) |
| Number of ratings | **3** | 2 |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 7 months |
| Monetization | Free | Free |
| Size | 110 MB | 33 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Fasoo AI Co., Ltd.](https://appshunter.io/developer/429136974) | [iService Ottner Röck](https://appshunter.io/developer/1413717324) |

## What reviewers say

### Fasoo View

[App page](https://appshunter.io/ios/app/fasoo-view/id444651561)

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.

**Highlights:** 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

**Features:** Vision Pro support

**In-app purchases:** none


### SubStandard

[App page](https://appshunter.io/ios/app/substandard/id1513656520)

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.

**Highlights:** Cold temperature corrections, Altitude set storage, Quick access to saved altitudes, Easy to use interface

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Fasoo View free?

Fasoo View is free to download, with no in-app purchases.

### Is SubStandard free?

SubStandard is free to download, with no in-app purchases.

### Which has better reviews, Fasoo View or SubStandard?

Fasoo View and SubStandard are both rated 5.0 out of 5 on the App Store, from 3 and 2 ratings respectively.

### Do Fasoo View or SubStandard have ads?

Neither Fasoo View nor SubStandard shows ads.

### Which is updated more often, Fasoo View or SubStandard?

Fasoo View ships an update every 3 weeks, and SubStandard every 7 months. Most recently, Fasoo View was updated on September 12, 2026 and SubStandard on September 9, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*