# MTC Moisture vs SentryBlack

The clearest difference is in-app purchases: MTC Moisture at none against SentryBlack's 2. MTC Moisture also leads on ads (none vs shown) and iOS requirement (13.0 vs 17.0). On price and device support there is nothing between them.

Both are free to download. SentryBlack sells 2 in-app purchases, starting at $4.99 per month. MTC Moisture asks for nothing beyond the download.

## The numbers

| Metric | MTC Moisture | SentryBlack |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | — | Fortnightly |
| Size | 12 MB | 17 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [MTC - GRAINMAN](https://appshunter.io/developer/1636747805) | [Matthew Wong](https://appshunter.io/developer/6774040057) |

## What reviewers say

### MTC Moisture

[App page](https://appshunter.io/ios/app/mtc-moisture/id1530072620)

**In-app purchases:** none


### 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 MTC Moisture free?

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

### Is SentryBlack free?

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

### Do MTC Moisture or SentryBlack have ads?

SentryBlack shows ads; MTC Moisture does not.

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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.*