# SAGUA Barcode Reader vs VulnWatch

The clearest difference is in-app purchases: SAGUA Barcode Reader at none against VulnWatch's 3. SAGUA Barcode Reader also leads on ads (none vs shown) and device support (3 vs 1). On price and update cadence there is nothing between them.

Both are free to download. VulnWatch sells 3 one-off in-app purchases. SAGUA Barcode Reader asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 4 weeks. The most recent releases landed on October 6, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | SAGUA Barcode Reader | VulnWatch |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 4 weeks | Every 4 weeks |
| Size | 20 MB | 5 MB |
| Requires iOS | **15.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Chang Hong Xu](https://appshunter.io/developer/618399303) | [Naoyuki Sato](https://appshunter.io/developer/1714035733) |

## What reviewers say

### SAGUA Barcode Reader

[App page](https://appshunter.io/ios/app/sagua-barcode-reader/id618399300)

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

**In-app purchases:** none


### VulnWatch

[App page](https://appshunter.io/ios/app/vulnwatch/id6470704548)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small gift | $4.99 | one-time |
| Medium gift | $9.99 | one-time |
| Large gift | $19.99 | one-time |


## Frequently asked questions

### Is SAGUA Barcode Reader free?

SAGUA Barcode Reader is free to download, with no in-app purchases.

### Is VulnWatch free?

VulnWatch is free to download, with in-app purchases available.

### Do SAGUA Barcode Reader or VulnWatch have ads?

VulnWatch shows ads; SAGUA Barcode Reader does not.

### Which is updated more often, SAGUA Barcode Reader or VulnWatch?

SAGUA Barcode Reader ships an update every 4 weeks, and VulnWatch every 4 weeks. Most recently, SAGUA Barcode Reader was updated on October 6, 2026 and VulnWatch on October 9, 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.*