# Fasoo Secure Viewer vs LINKFLOW BOLD

The clearest difference is iOS requirement: LINKFLOW BOLD at 12.1 against Fasoo Secure Viewer's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Fasoo Secure Viewer ships an update every 6 weeks, LINKFLOW BOLD every 4 weeks. The most recent releases landed on August 22, 2026 and May 19, 2026 respectively.

## The numbers

| Metric | Fasoo Secure Viewer | LINKFLOW BOLD |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 4 weeks** |
| Size | 118 MB | 66 MB |
| Requires iOS | 15.0 | **12.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Fasoo AI Co., Ltd.](https://appshunter.io/developer/429136974) | [YONG KUK KIM](https://appshunter.io/developer/1503461804) |

## What reviewers say

### Fasoo Secure Viewer

[App page](https://appshunter.io/ios/app/fasoo-secure-viewer/id6478472132)

**In-app purchases:** none


### LINKFLOW BOLD

[App page](https://appshunter.io/ios/app/linkflow-bold/id6680175035)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Fasoo Secure Viewer free?

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

### Is LINKFLOW BOLD free?

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

### Do Fasoo Secure Viewer or LINKFLOW BOLD have ads?

Neither Fasoo Secure Viewer nor LINKFLOW BOLD shows ads.

### Which is updated more often, Fasoo Secure Viewer or LINKFLOW BOLD?

Fasoo Secure Viewer ships an update every 6 weeks, and LINKFLOW BOLD every 4 weeks. Most recently, Fasoo Secure Viewer was updated on August 22, 2026 and LINKFLOW BOLD on May 19, 2026.

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