Wynd Sentry vs E Collar
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Wynd Sentry
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.
- 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%)
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What is Sentry? Sentry is the world's first non-intrusive device that protects your rental property by reliably detecting cigarette, marijuana, vape smoke*, and loud parties. • Be alerted instantly to unwanted smoking, parties, and other environment-related issues • Sentry airID™ technology detects cigarette, marijuana, and vape* smoke with > 99% accuracy* to prevent unwanted smoking before it starts • Monitor noise to prevent parties, damages, and neighbor complaints using industry-leading SiSonic™ MEMS technology • Powerful Reporting to Support Reimbursement Claims • Notified if device has been tampered with or is disconnected
E Collar
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Take control of your pet's training with the ultimate E Collar companion app. Designed for modern pet owners, E Collar seamlessly connects your smartphone to your pet's collar and finger remote, offering precision control and real-time monitoring. Whether you are training a new puppy or managing a working dog, our app ensures you stay connected and in command.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Wynd Sentry | E Collar |
|---|---|---|
| Price | Free | Free |
| Rating | 4.1 (23 ratings) — better | — |
| Positive reviews | 61.5% of reviews | — |
| Number of ratings | 23 — better | — |
| Update frequency | Every 4 weeks — better | Monthly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.1 — better | 15.6 |
| Further details — not scored | ||
| Size | 44 MB | 31 MB |
| Age rating | 12+ | 4+ |
| Developer | Wynd Technologies, Inc. | Shenzhen Patpet Technology CO.,LTD |
In-app purchases
Wynd Sentry
No in-app purchases
E Collar
No in-app purchases
