MerryIoT Sensor vs Roomsys
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MerryIoT Sensor
Monitor your home's environment with this app. It tracks air quality, detects water leaks, and alerts you to unexpected movement, helping ensure a healthy and safe living space.
- Air quality monitoring
- Water leak detection
- Movement detection
- Home safety alerts
- Healthy home environment
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MerryIoT is the simple way to a healthy and safe home. Download the MerryIoT app and monitor air quality status, water leak detection, unexpected movement, etc…
Roomsys
Monitor your building for potential hazards like water leaks, mold, and gas leaks. This system helps prevent costly damage and ensures a safer environment.
- Water leak detection
- Mold prevention
- Gas leak monitoring
- Costly damage prevention
- Smart building system
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Protect your building from costly water leaks, mold, gas leaks and more with the Roomsys Smart Building System.
Screenshots
Verdict
The clearest difference is rating: Roomsys at 5.0 against MerryIoT Sensor's 1.0. Roomsys also leads on update cadence (every 3 weeks vs every 5 months). On price, ratings volume, ads and in-app purchases 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.
Roomsys holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively.
MerryIoT Sensor ships an update every 5 months, Roomsys every 3 weeks. The most recent releases landed on June 1, 2026 and September 10, 2026 respectively.
| Parameter | MerryIoT Sensor | Roomsys |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (2 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 2 — better | 1 |
| Update frequency | Every 5 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 14.0 |
| Further details — not scored | ||
| Size | 33 MB | 24 MB |
| Age rating | 4+ | 4+ |
| Developer | BROWAN COMMUNICATIONS INCORPORATION | Roomsys LLC |
Customer experience
MerryIoT Sensor
Roomsys
In-app purchases
MerryIoT Sensor
No in-app purchases
Roomsys
No in-app purchases
