Devos vs Blu Onyx WATERSTOP
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Devos
Control your LightRanger series lights via Bluetooth. Adjust individual light sides, color, and brightness. Schedule auto-offs, activate emergency flash modes, and group multiple lights for synchronized control.
- Bluetooth light control
- Individual side control
- Color and brightness adjustment
- Group multiple lights
- Emergency flash mode
- Schedule auto-off
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- Light control over Bluetooth including individual control of all 4 sides, color, and brightness - Firmware updates - Group and control multiple lights at once - Emergency flash mode - Schedule auto-off - Supports the following Lights: - LightRanger 2000 with 3 colors - LightRanger 4000 with Boost Mode to 4000 lumens brightness - LightRanger Pro 10,000 with Boost Mode to 10,000 lumens brightness - LightRanger Pro 15,000 with Boost Mode to 15,000 lumens brightness
Blu Onyx WATERSTOP
Monitor and control your RV's water system remotely. Receive instant alerts for leaks and manage water valves from your phone, preventing costly damage and providing peace of mind.
- Remote water valve control
- Leak detection alerts
- Device registration and management
- Real-time sensor monitoring
- Water usage insights
- Account security settings
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BLU ONYX helps protect your recreational vehicle by connecting your phone to your WATERSTOP device for smart water control, leak detection, and rapid response. Whether you are in your RV or away, BLU ONYX gives you the tools to monitor your water system, receive alerts, and act quickly when issues appear. With BLU ONYX, you can: - Add and register purchased WATERSTOP devices to your account - Pair devices over Bluetooth during setup - Connect devices to your Wi-Fi network - View all connected devices in one place - Remove or reassign devices when needed - Open or close water valves directly from the app - Monitor connected sensors and device status - Receive and review alarm and leak events - Access logs and water-use insights - Manage your account details and security settings Built for reliability and simple control, BLU ONYX is designed to reduce stress and help prevent costly water damage by putting critical water controls in your hands. Use BLU ONYX to stay informed, respond faster, and keep your RV water system safer every day.
Screenshots
Verdict
The clearest difference is rating: Devos at 4.7 against Blu Onyx WATERSTOP's 3.0. Devos also leads on ratings volume (65 vs 2). Blu Onyx WATERSTOP's advantage is update cadence (every 2 weeks vs every 6 months). On price, ads, in-app purchases and monetization model there is nothing between them.
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.
Devos holds the better App Store score, 4.7 against 3.0. That said, the two scores are not equally well evidenced: Devos has 65 ratings behind it against 2, so its average is the more settled of the two.
Devos ships an update every 6 months, Blu Onyx WATERSTOP every 2 weeks. The most recent releases landed on October 4, 2026 and October 11, 2026 respectively.
| Parameter | Devos | Blu Onyx WATERSTOP |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (65 ratings) — better | 3.0 (2 ratings) |
| Positive reviews | 93.5% of reviews | — |
| Number of ratings | 65 — better | 2 |
| Update frequency | Every 6 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 31 MB | 44 MB |
| Age rating | 4+ | 4+ |
| Developer | Devos Outdoor | Blu Onyx LLC |
Customer experience
Devos
Blu Onyx WATERSTOP
Bugs and requests
Devos
Reported bugs
3 issues- Will not pair with iPhone 13 Pro Max
- Does not pair
- Disconnects if not used for 7-8 hours
Requested features
2 requests- Support for more than 4 lights (up to 8)
- Provision for a second row of lights up to 8
Blu Onyx WATERSTOP
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Devos
No in-app purchases
Blu Onyx WATERSTOP
No in-app purchases
