# Spyware Bug Detector vs Mobile Guard Sentrynet

The clearest difference is ads: Mobile Guard Sentrynet at none against Spyware Bug Detector's shown. Spyware Bug Detector's advantage is iOS requirement (16.0 vs 26.0). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Spyware Bug Detector sells 2 in-app purchases, starting at $7.99 per 7 days and Mobile Guard Sentrynet sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly daily. The most recent releases landed on September 22, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Spyware Bug Detector | Mobile Guard Sentrynet |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Daily | Daily |
| Size | 34 MB | 6 MB |
| Requires iOS | **16.0** | 26.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Caleb Williams](https://appshunter.io/developer/1825383700) | [Sentrynet Srl](https://appshunter.io/developer/1857584223) |

## What reviewers say

### Spyware Bug Detector

[App page](https://appshunter.io/ios/app/spyware-bug-detector-security/id6748351912)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $7.99 | per 7 days |
| Full Spyware Protection | $8.99 | per 7 days |


### Mobile Guard Sentrynet

[App page](https://appshunter.io/ios/app/mobile-guard-sentrynet/id6789548297)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 10-minute analysis units | $3.99 | one-time |


## Frequently asked questions

### Is Spyware Bug Detector free?

Spyware Bug Detector is free to download, with in-app purchases available.

### Is Mobile Guard Sentrynet free?

Mobile Guard Sentrynet is free to download, with in-app purchases available.

### Do Spyware Bug Detector or Mobile Guard Sentrynet have ads?

Spyware Bug Detector shows ads; Mobile Guard Sentrynet does not.

### Which is updated more often, Spyware Bug Detector or Mobile Guard Sentrynet?

Spyware Bug Detector ships an update daily, and Mobile Guard Sentrynet daily. Most recently, Spyware Bug Detector was updated on September 22, 2026 and Mobile Guard Sentrynet on September 18, 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.*