# BluBlu Sentry vs Sentry

BluBlu Sentry and Sentry are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

BluBlu Sentry ships an update fortnightly, Sentry weekly. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | BluBlu Sentry | Sentry |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Weekly** |
| Size | 75 MB | 29 MB |
| Requires iOS | **15.1** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Blublu Tech Inc](https://appshunter.io/developer/1835047735) | [DAMREV](https://appshunter.io/developer/1789617314) |

## What reviewers say

### BluBlu Sentry

[App page](https://appshunter.io/ios/app/blublu-sentry/id6761701658)

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

**In-app purchases:** none


### Sentry

[App page](https://appshunter.io/ios/app/sentry-on-device-signing/id6789570347)

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

**In-app purchases:** none


## Frequently asked questions

### Is BluBlu Sentry free?

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

### Is Sentry free?

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

### Do BluBlu Sentry or Sentry have ads?

Neither BluBlu Sentry nor Sentry shows ads.

### Which is updated more often, BluBlu Sentry or Sentry?

BluBlu Sentry ships an update fortnightly, and Sentry weekly. Most recently, BluBlu Sentry was updated on October 24, 2026 and Sentry on October 25, 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.*