Moen Flo vs CalaWater
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Moen Flo
Manage your home's water system remotely. This app connects to smart devices to monitor leaks, control faucets, manage sprinklers, and track water usage for peace of mind and conservation.
- Remote water control
- Whole-home leak protection
- Smart faucet operation
- Automated sprinkler management
- Water usage tracking
- Customizable alerts
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Protect your home from water damage, monitor usage, and control your water from anywhere — all in one app. Moen Flo apps works with the Moen Flo Shutoff to give you 24/7 whole-home leak protection. Also, compatible with the Moen Smart Water Detector, Smart Sump Pump Monitor, Smart Sprinkler Controller, and Smart Faucet. To learn more, visit moen.com/flo
CalaWater
Monitor and control your intelligent heat pump water heater remotely. Track usage, optimize heating schedules for solar production or vacation, and ensure hot water availability. Receive ongoing system updates for improved performance.
- Track hot water usage patterns
- Sync heating with solar production
- View energy usage
- Boost production on demand
- Schedule vacation energy savings
- Monitor real-time availability and performance
- Configure system run times
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The Cala app is the companion to your Cala intelligent heat pump water heater. It allows you to monitor and control key aspects of your system to ensure it performs according to your household’s needs and preferences. With the app, you can: - Track your home’s hot water usage patterns - Sync your water heater to automatically heat during solar production - View your water heater’s energy usage - Boost production when family or guests are in town - Schedule your vacation for energy savings - Monitor hot water availability and performance in real-time - Configure when the system runs to avoid noise or cool air during specific times The Cala app also enables ongoing system updates and performance improvements delivered over time. An internet connection is required to access the features in the Cala mobile app. While your Cala water heater will function without the app, features like remote control and energy optimizations are only available when the app is connected to the internet No subscription is required. The Cala app is free to use.
Screenshots
Verdict
The clearest difference is review sentiment: CalaWater at 100% against Moen Flo's 16%. CalaWater also leads on rating (4.8 vs 4.4). Moen Flo's advantage is ratings volume (26K vs 6) and chart position (#36 vs unranked). On price, update cadence, 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.
CalaWater holds the better App Store score, 4.8 against 4.4. That said, the two scores are not equally well evidenced: Moen Flo has 26K ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 16% of Moen Flo's written reviews are positive against 100% of CalaWater's.
Moen Flo ships an update fortnightly, CalaWater every 2 weeks. The most recent releases landed on October 31, 2026 and October 24, 2026 respectively.
| Parameter | Moen Flo | CalaWater |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (26K ratings) | 4.8 (6 ratings) — better |
| Positive reviews | 15.8% of reviews | 100.0% of reviews — better |
| Number of ratings | 26K — better | 6 |
| Update frequency | Fortnightly — better | Every 2 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Best chart rank | #36 — better | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 138 MB | 59 MB |
| Age rating | 4+ | 4+ |
| Developer | Moen Incorporated | Cala Systems, Inc. |
Customer experience
Moen Flo
CalaWater
Bugs and requests
Moen Flo
Reported bugs
4 issues- App frequently loses connection to devices
- Water usage data not updating or displaying correctly
- Scheduled water shutoffs not working as expected
- Sensor calibration and setup process unreliable
Requested features
4 requests- Add customizable water usage alerts and thresholds
- Implement time zone settings and data synchronization
- Improve app stability and responsiveness
- Integrate with popular smart home platforms
CalaWater
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Moen Flo
No in-app purchases
CalaWater
No in-app purchases
