# WolfSense Mobile vs Sentinel Pro

The clearest difference is update cadence: Sentinel Pro at every 3 weeks against WolfSense Mobile's every 7 months. WolfSense Mobile's advantage is iOS requirement (11.0 vs 13.0). On price, ads, in-app purchases and device support there is nothing between them.

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

WolfSense Mobile ships an update every 7 months, Sentinel Pro every 3 weeks. The most recent releases landed on June 6, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | WolfSense Mobile | Sentinel Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/wolfsense-mobile/id1522804523/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 161 MB | 3 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [GrayWolf Sensing Solutions, LLC](https://appshunter.io/developer/1478782810) | [Ben Software Ltd](https://appshunter.io/developer/1142125927) |

## What reviewers say

### WolfSense Mobile

[App page](https://appshunter.io/ios/app/wolfsense-mobile/id1522804523)

This application connects GrayWolf DirectSense® II probes to iOS devices, transforming them into real-time displays and data loggers. It supports up to six plug-and-play gas sensors for various indoor air quality, industrial hygiene, and HVAC applications. Users can store logs, view trend graphs, and add multimedia notes to data files.

**Highlights:** Real-time display, Data logging, Supports multiple gas sensors, Trend graphing, Multimedia note integration, Cloud data access

**Features:** macOS Compatibility

**In-app purchases:** none


### Sentinel Pro

[App page](https://appshunter.io/ios/app/sentinel-pro/id1581444500)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is WolfSense Mobile free?

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

### Is Sentinel Pro free?

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

### Do WolfSense Mobile or Sentinel Pro have ads?

Neither WolfSense Mobile nor Sentinel Pro shows ads.

### Which is updated more often, WolfSense Mobile or Sentinel Pro?

WolfSense Mobile ships an update every 7 months, and Sentinel Pro every 3 weeks. Most recently, WolfSense Mobile was updated on June 6, 2026 and Sentinel Pro on September 21, 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.*