# Fasoo Secure Viewer vs OffDays Alarm

The clearest difference is ads: Fasoo Secure Viewer at none against OffDays Alarm's shown. Fasoo Secure Viewer also leads on iOS requirement (15.0 vs 26.0). OffDays Alarm's advantage is update cadence (every 10 days vs every 6 weeks). On price, in-app purchases and device support 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, OffDays Alarm every 10 days. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Fasoo Secure Viewer | OffDays Alarm |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 6 weeks | **Every 10 days** |
| Size | 118 MB | 15 MB |
| Requires iOS | **15.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Fasoo AI Co., Ltd.](https://appshunter.io/developer/429136974) | [Sung Ahn Kim](https://appshunter.io/developer/1452083763) |

## What reviewers say

### Fasoo Secure Viewer

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

**In-app purchases:** none


### OffDays Alarm

[App page](https://appshunter.io/ios/app/offdays-alarm/id6762003987)

**Features:** macOS Compatibility, Vision Pro support

**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 OffDays Alarm free?

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

### Do Fasoo Secure Viewer or OffDays Alarm have ads?

OffDays Alarm shows ads; Fasoo Secure Viewer does not.

### Which is updated more often, Fasoo Secure Viewer or OffDays Alarm?

Fasoo Secure Viewer ships an update every 6 weeks, and OffDays Alarm every 10 days. Most recently, Fasoo Secure Viewer was updated on October 30, 2026 and OffDays Alarm on November 5, 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.*