Comparison

Flo by Moen™ vs Sub

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

Head to head
About

Flo by Moen™

This app guides users through migrating their Flo by Moen devices to a new platform before the current app is deactivated. It provides a step-by-step process to ensure a smooth transition for water damage and leak protection devices.

Highlights
  • Guided device migration
  • Step-by-step instructions
  • Water damage protection device transfer
  • Leak detector device transfer
  • App deactivation guidance
Read full description

The Flo by Moen app will deactivate on May 1, 2026. Open this app for a guided, step-by-step process to move your Shutoff and Leak Detector devices to our new app in minutes.

About

Sub

This app enhances your kitchen experience by guiding you through recipes from websites and a curated collection. It allows remote control and monitoring of Sub-Zero refrigeration, Cove dishwashing, and Wolf appliances, ensuring optimal performance and convenience.

Highlights
  • Guided cooking from online recipes
  • Chef-tested recipes optimized for Wolf appliances
  • Remote dishwasher control and monitoring
  • Refrigerator settings and alerts
  • Filter recipes by cooking mode
  • Bookmark and share recipes
Features
Read full description

Elevate your kitchen experience with the Sub-Zero Group Owner’s App. Connect your Wi-Fi-enabled appliances and enjoy greater control, personalized cooking, and now, integrated wine inventory management. • Build and manage your wine collection • Scan bottles to quickly add wines to your inventory • Track where each bottle is stored across locations • Organize your collection with filters, groups, and tags • View inventory history as wines are enjoyed over time • Enjoy a guided cooking experience with recipes tailored to your appliances • Set timers and view oven status directly from recipe steps • Monitor and control your appliances from anywhere • Receive notifications for appliance status, maintenance, and more The app also gives you powerful control over your Sub-Zero refrigeration and Cove dishwashing appliances. Start your dishwasher remotely, monitor cycles, and manage supplies Wine Inventory transforms a traditionally manual task into a simple, intuitive experience. Manage your collection, understand where your wines are stored, and stay connected to your kitchen in one place. Download now and get more from every Sub-Zero, Wolf, and Cove appliance.

Screenshots

Flo by Moen™4 screens
Sub4 screens

Verdict

The call

The clearest difference is rating: Sub at 4.4 against Flo by Moen™'s 4.0. Flo by Moen™'s advantage is review sentiment (36% vs 15%) and monetization model (free vs ad-supported). On price, ratings volume, update cadence and ads 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

Sub holds the better App Store score, 4.4 against 4.0. Both are backed by a comparable volume of ratings — 1.9K and 778 respectively. Written reviews complicate that: 36% of Flo by Moen™'s written reviews are positive against 15% of Sub's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Flo by Moen™ ships an update every 2 months, Sub every 5 weeks. The most recent releases landed on September 23, 2026 and September 20, 2026 respectively.

Scorecard3 real differences · 7 level
Flo by Moen™ versus Sub: the parameters behind the verdict, then further details
ParameterFlo by Moen™Sub
PriceFreeFree
Rating4.0 (1.9K ratings)4.4 (778 ratings) — better
Positive reviews35.8% of reviews — better15.1% of reviews
Number of ratings1.9K — better778
Update frequencyEvery 2 monthsEvery 5 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterAd-supported
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.0 — better15.5
Further details — not scored
Size69 MB69 MB
Age rating4+4+
DeveloperFlo TechnologiesSub-Zero and Wolf

Customer experience

Flo by Moen™

All ratings1,881 ratings
Positive73.7%
Neutral7.0%
Negative19.3%
Written reviews279 reviews
Positive35.8%
Neutral14.3%
Negative49.8%

Sub

All ratings778 ratings
Positive85.1%
Neutral3.0%
Negative12.0%
Written reviews172 reviews
Positive15.1%
Neutral8.7%
Negative76.2%

User reviews

Flo by Moen™

From 1.9K App Store ratings

What we love

  • 🚀 Piece of mind
  • 🚀 Monitors water usage
  • 🚀 Detects leaks
  • 🚀 Ability to shut off water remotely
  • 🚀 Provides detailed water usage data

Room to improve

  • 🐛 Inaccurate fixture detection
  • 🐛 Frequent false alarms and water shutoffs
  • 🐛 Buggy app with connectivity issues
  • 🐛 Limited customization and control options
  • 🐛 Inconsistent water usage tracking

Sub

From 778 App Store ratings

What we love

  • 🚀 Responsive and intuitive app
  • 👍 Helpful notifications and alerts
  • 🔒 Secure connection to appliances

Room to improve

  • 🐛 Frequent connection issues and disconnects
  • 🔍 Lack of actual temperature monitoring
  • 🤔 Confusing setup and pairing process
  • 🔍 Missing key features like remote start

Bugs and requests

Flo by Moen™

Reported bugs

5 issues
  • App crashes and freezes
  • Inability to connect devices to WiFi
  • Incorrect water usage data and categorization
  • Water shutoffs during normal usage
  • Sensor connectivity issues and failures

Requested features

6 requests
  • Ability to customize fixture types
  • More granular water usage reporting
  • Automated home/away mode
  • Integration with more smart home platforms
  • Improved app responsiveness and stability
Show 1 more
  • Better leak detection sensitivity

Sub

Reported bugs

4 issues
  • App crashes after recent updates
  • Unable to log in or register account
  • Appliances disappear from the app
  • Firmware update failures brick appliances

Requested features

3 requests
  • Add support for Celsius temperature units
  • Provide real-time temperature and energy consumption data
  • Integrate with smart home platforms like Apple HomeKit

In-app purchases

None

Flo by Moen™

No in-app purchases

None

Sub

No in-app purchases

Questions

Is Flo by Moen™ free?
Flo by Moen™ is free to download, with no in-app purchases.
Is Sub free?
Sub is free to download, with no in-app purchases.
Which has better reviews, Flo by Moen™ or Sub?
Sub is rated higher. Flo by Moen™ averages 4.0 out of 5 from 1.9K ratings, while Sub averages 4.4 from 778 ratings.
Do Flo by Moen™ or Sub have ads?
Neither Flo by Moen™ nor Sub shows ads.
Which is updated more often, Flo by Moen™ or Sub?
Flo by Moen™ ships an update every 2 months, and Sub every 5 weeks. Most recently, Flo by Moen™ was updated on September 23, 2026 and Sub on September 20, 2026.

Other comparisons