# DataSentryX vs SentryBlack

The clearest difference is ads: DataSentryX at none against SentryBlack's shown. SentryBlack's advantage is device support (3 vs 1). On price, update cadence, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. DataSentryX sells 7 in-app purchases, starting at $5.99 per month and SentryBlack sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

DataSentryX ships an update weekly, SentryBlack fortnightly. The most recent releases landed on October 10, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | DataSentryX | SentryBlack |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Weekly** | Fortnightly |
| Size | 29 MB | 17 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [DataSentryX LLC](https://appshunter.io/developer/6774431139) | [Matthew Wong](https://appshunter.io/developer/6774040057) |

## What reviewers say

### DataSentryX

[App page](https://appshunter.io/ios/app/datasentryx-tracker-blocker/id6774431137)

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $5.99 | per month |
| Family Monthly | $14.99 | per month |
| Business Monthly | $24.99 | per month |
| Pro Yearly | $59.99 | per year |
| Family Yearly | $119.99 | per year |
| Business Yearly | $199.99 | per year |
| Lifetime Access | $149.99 | one-time |


### SentryBlack

[App page](https://appshunter.io/ios/app/sentryblack-security-camera/id6790313702)

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SentryBlack Pro (Monthly) | $4.99 | per month |
| SentryBlack Pro (Yearly) | $29.99 | per year |


## Frequently asked questions

### Is DataSentryX free?

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

### Is SentryBlack free?

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

### Do DataSentryX or SentryBlack have ads?

SentryBlack shows ads; DataSentryX does not.

### Which is updated more often, DataSentryX or SentryBlack?

DataSentryX ships an update weekly, and SentryBlack fortnightly. Most recently, DataSentryX was updated on October 10, 2026 and SentryBlack on October 3, 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.*