Comparison

Moen Flo vs Rinnai Central

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Remote water control
  • Whole-home leak protection
  • Smart faucet operation
  • Automated sprinkler management
  • Water usage tracking
  • Customizable alerts
Read full description

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

About

Rinnai Central

This app connects Rinnai tankless water heater owners to their devices for temperature control and scheduling. Professional installers can use it to register appliances, perform service, access documentation, and order parts.

Highlights
  • Adjust water temperature
  • Schedule hot water
  • Activate recirculation
  • Register appliances
  • Perform remote service
  • Access documentation
  • Order replacement parts
Features
Read full description

Rinnai Central helps professionals support customers and gives homeowners convenient control of compatible Rinnai water heating systems from anywhere. For Rinnai PROs and installers, Rinnai Central makes it easier to register products, set up compatible customer devices, access service tools, and stay connected to Rinnai resources. For Rinnai tankless water heater owners, Rinnai Central provides convenient access to temperature control, recirculation settings, scheduling, system status, and maintenance alerts when supported by the connected product. PROFESSIONALS Use Rinnai Central to: ∙ Set parameters and perform service on compatible Rinnai tankless water heaters and boilers. ∙ Register eligible Rinnai products after installation. ∙ Set up and configure compatible customer Wi-Fi modules. ∙ Access product documentation, troubleshooting tools, training, rebates, news, and service resources. ∙ Find the right Rinnai product for your customer's needs. ∙ Access the Rinnai parts webstore. ∙ Manage your professional account and company relationship. ∙ Participate in eligible Rinnai PRO Tech programs when available. HOMEOWNERS Use Rinnai Central to: ∙ Adjust compatible water heating system temperature settings. ∙ Activate recirculation when supported by the product. ∙ Create daily schedules so hot water is ready when needed. ∙ Set vacation mode to help save energy when hot water is not needed. ∙ View real-time system status and maintenance alerts. ∙ Find experienced Rinnai PROs and installers near you. COMPATIBLE PRODUCTS Rinnai Central supports select Rinnai residential and commercial tankless water heaters and compatible accessories. Some features require a supported Rinnai Wi-Fi module or compatible connected product. Product availability, supported features, and access permissions may vary by model. - BLE setup is not available on all Rinnai products. Some products may require the RWM200 Wi-Fi Module accessory, sold separately. - For safety and product support reasons, some device setup and service permissions may be restricted to Rinnai professionals. Read our Data Use and Privacy Policy, Terms, and other important information in the legal section of our App Store description or at the web addresses below. TERMS OF SERVICE https://www.rinnai.us/terms-of-use PRIVACY POLICY https://www.rinnai.us/privacy-policy

Screenshots

Moen Flo4 screens
Rinnai Central4 screens

Verdict

The call

The clearest difference is rating: Moen Flo at 4.3 against Rinnai Central's 1.6. Moen Flo also leads on ratings volume (22K vs 341) and update cadence (fortnightly vs monthly). On price, review sentiment, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Moen Flo holds the better App Store score, 4.3 against 1.6. That said, the two scores are not equally well evidenced: Moen Flo has 22K ratings behind it against 341, so its average is the more settled of the two. Written reviews point the same way: 15% of Moen Flo's written reviews are positive against 10% of Rinnai Central's.

UpkeepUpdate frequency

Moen Flo ships an update fortnightly, Rinnai Central monthly. The most recent releases landed on September 24, 2026 and September 23, 2026 respectively.

Scorecard3 real differences · 7 level
Moen Flo versus Rinnai Central: the parameters behind the verdict, then further details
ParameterMoen FloRinnai Central
PriceFreeFree
Rating4.3 (22K ratings) — better1.6 (341 ratings)
Positive reviews15.2% of reviews — better9.9% of reviews
Number of ratings22K — better341
Update frequencyFortnightly — betterMonthly
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.015.4.1 — better
Further details — not scored
Size126 MB79 MB
Age rating4+4+
DeveloperMoen IncorporatedRinnai America Corp

Customer experience

Moen Flo

All ratings22,445 ratings
Positive83.1%
Neutral3.7%
Negative13.2%
Written reviews794 reviews
Positive15.2%
Neutral10.2%
Negative74.6%

Rinnai Central

All ratings341 ratings
Positive12.6%
Neutral3.5%
Negative83.9%
Written reviews203 reviews
Positive9.9%
Neutral4.9%
Negative85.2%

User reviews

Moen Flo

From 22K App Store ratings

What we love

  • 🚀 Excellent water monitoring and leak detection
  • 👍 Easy to use app and setup
  • 🔒 Helpful alerts and notifications
  • ⚙️ Useful smart features like scheduling and remote control

Room to improve

  • 🐛 Buggy app with frequent crashes and connectivity issues
  • 🤖 Poor AI/ML performance in learning water usage patterns
  • 🤔 Confusing and unintuitive app interface
  • 🔇 Lack of integration with popular smart home platforms like HomeKit

Rinnai Central

From 341 App Store ratings

What we love

  • 🚀 Works great
  • 🚀 Much improved
  • 🚀 Fantastic
  • 🚀 Working perfectly now

Room to improve

  • 🐛 Doesn't work at all
  • 🐛 Bug in 4.3.0
  • 🐛 Awful. Just terrible
  • 🐛 Lousy App
  • 🐛 Rinnai does not care

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

Rinnai Central

Reported bugs

3 issues
  • Control failed is still happening in latest version
  • Login screen freezes
  • Incompatible with older devices

Requested features

3 requests
  • Add device through Bluetooth missing
  • Dark mode option
  • Advanced analytics dashboard

In-app purchases

None

Moen Flo

No in-app purchases

None

Rinnai Central

No in-app purchases

Questions

Is Moen Flo free?
Moen Flo is free to download, with no in-app purchases.
Is Rinnai Central free?
Rinnai Central is free to download, with no in-app purchases.
Which has better reviews, Moen Flo or Rinnai Central?
Moen Flo is rated higher. Moen Flo averages 4.3 out of 5 from 22K ratings, while Rinnai Central averages 1.6 from 341 ratings.
Do Moen Flo or Rinnai Central have ads?
Neither Moen Flo nor Rinnai Central shows ads.
Which is updated more often, Moen Flo or Rinnai Central?
Moen Flo ships an update fortnightly, and Rinnai Central monthly. Most recently, Moen Flo was updated on September 24, 2026 and Rinnai Central on September 23, 2026.

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