Flume Water vs Flex
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Flume Water
Monitor and manage your home's water usage with real-time data and leak detection. This app helps you understand your consumption, set budgets, and receive alerts to prevent costly water damage.
- Real-time water usage data
- Leak detection and alerts
- Water consumption budgeting
- Household water use analysis
- Easy self-installation
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The Flume app connects with a Flume Water Sensor installed on your home’s water meter. Flume enables customers to manage, monitor, and conserve water in their home. Catch Water Leaks and Protect Your Home Surprises are fun, but not when it comes to leaks. Flume alerts you of abnormal (or accidental) water usage to give you peace of mind whether you’re at home or away. Down-to-the-Minute Water Use Data Flume helps you paint a picture of your household’s water use. Dig into the data—down to the one-hundredth of a gallon—and find new ways to reduce your water use. Overflowing with Savings A device that pays for itself. Flume automatically suggests a budget so you can cap your consumption and creates leak notifications to catch costly drips. Simple Self-Installation. No Plumbing Necessary. Set up and install Flume in minutes. Just strap it to your water meter. No pipe cutting. No wiring. No appointments. No plumbers. To purchase a Flume Water Sensor, visit https://flumewater.com
Flex
This application allows you to customize the colors and hues of your lighting system. Enhance any environment with a spectrum of bold colors, warm tones, and custom shades, bringing your creative vision to life.
- Control lighting colors
- Customize hues and tones
- Enhance lighting environments
- Creative color application
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Control the colors of your lighting from the palm of your hand. SPJ Lighting unlocks your creative imagination to enhance any lighting environment. From bold colors to warm tones and hues our app will bring color to the night.
Screenshots
Verdict
The clearest difference is rating: Flume Water at 4.7 against Flex's 3.0. Flume Water also leads on ratings volume (1.7K vs 4). Flex's advantage is in-app purchases (none vs 2) and iOS requirement (9.3 vs 15.0). On price, update cadence, ads and device support 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. Flume Water sells 2 in-app purchases, starting at $49.99 per year. Flex asks for nothing beyond the download.
Flume Water holds the better App Store score, 4.7 against 3.0. That said, the two scores are not equally well evidenced: Flume Water has 1.7K ratings behind it against 4, so its average is the more settled of the two.
Both ship on a similar rhythm, roughly every 6 weeks. The most recent releases landed on October 29, 2026 and October 2, 2026 respectively.
| Parameter | Flume Water | Flex |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (1.7K ratings) — better | 3.0 (4 ratings) |
| Positive reviews | 58.6% of reviews | — |
| Number of ratings | 1.7K — better | 4 |
| Update frequency | Every 6 weeks | Every 6 weeks |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.0 | 9.3 — better |
| Further details — not scored | ||
| Size | 56 MB | 21 MB |
| Age rating | 4+ | 4+ |
| Developer | Flume, Inc. | LinkCom Manufacturing Co., Ltd. |
Customer experience
Flume Water
Flex
Bugs and requests
Flume Water
Reported bugs
4 issues- App freezes and crashes
- Inaccurate water usage reporting
- Calibration issues after battery replacement
- Delayed or missed leak notifications
Requested features
5 requests- Landscape mode support for tablets
- Integration with smart home platforms
- Customizable notification settings
- Ability to manually train the system
- Enhanced data export and analysis tools
Flex
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Flume Water
- Flume Insight1 Month trial$49.991 Year
- Flume Insight$49.99
Flex
No in-app purchases
