# Wynd Sentry vs E Collar

Wynd Sentry and E Collar 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.

Wynd Sentry ships an update every 4 weeks, E Collar monthly. The most recent releases landed on August 27, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Wynd Sentry | E Collar |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (23 ratings)](https://appshunter.io/ios/app/wynd-sentry/id1638515401/reviews)** | — |
| Number of ratings | **23** | — |
| Positive reviews | 61.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Monthly |
| Monetization | Free | — |
| Size | 44 MB | 31 MB |
| Requires iOS | **15.1** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Wynd Technologies, Inc.](https://appshunter.io/developer/990113674) | [Shenzhen Patpet Technology CO.,LTD](https://appshunter.io/developer/1622792510) |

## What reviewers say

### Wynd Sentry

[App page](https://appshunter.io/ios/app/wynd-sentry/id1638515401)

This device detects cigarette, marijuana, and vape smoke, as well as loud parties in rental properties. Receive instant alerts for unwanted smoking, parties, and environmental issues. It offers powerful reporting to support reimbursement claims and notifies you of tampering.

**Highlights:** Detects cigarette, marijuana, and vape smoke, Monitors noise levels to prevent parties, Instant alerts for smoking and parties, Reporting for reimbursement claims, Tamper and disconnection notifications, High accuracy smoke detection (>99%)

**Features:** Vision Pro support

**In-app purchases:** none


### E Collar

[App page](https://appshunter.io/ios/app/e-collar/id6764741632)

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

**In-app purchases:** none


## Frequently asked questions

### Is Wynd Sentry free?

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

### Is E Collar free?

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

### Do Wynd Sentry or E Collar have ads?

Neither Wynd Sentry nor E Collar shows ads.

### Which is updated more often, Wynd Sentry or E Collar?

Wynd Sentry ships an update every 4 weeks, and E Collar monthly. Most recently, Wynd Sentry was updated on August 27, 2026 and E Collar on September 22, 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.*