A Smarter Way to Shower

River® is the smart shower monitor that helps households save water, time, and up to 30% on their water bills.

  • Track your shower time in real time
  • Reduce water use effortlessly
  • Save on monthly water bills
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Launching on Kickstarter late 2026

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River smart shower monitor in water splash

Did you know?

The average household shower uses

0 gallons

per year in shower water alone.

River® helps households reduce this by up to

0 gallons saved

River® helps households become aware of their usage and reduce water waste while saving up to 30% annually.

For many families, that means River® can pay for itself in as little as 6 months.

Watch how it works ↓

Smarter showers
Lower water bills

River® detects your shower automatically, delivers real-time insights, and helps you save water, time, and money.

River device being installed in a shower

⏱️60-second install

Peel, stick, pair. No tools, no plumber. River joins your home in under a minute.

  • No professional help needed
  • Works with most shower types
  • Fully waterproof & secure mount
River automatically detecting shower water flow

📡Automatic Detection

On-device sensing wakes when water flows. You never have to start or stop anything.

  • Always on, zero taps
  • Every shower is captured
  • Low-power, local intelligence
River app showing shower tracking and savings

📊Track. Save. Win.

Track length, flow, and cost in real time so savings are obvious and effortless.

  • Instant feedback every shower
  • Easy to read trends
  • Clear cost breakdowns
Person in shower receiving a gentle nudge from River

🔔In shower nudges

Subtle cues and streaks build habits that last, without the nagging.

  • Encourages shorter showers
  • Positive streaks & goals
  • Zero friction to use
River supporting multiple household user profiles

👥Multiple User Profiles

Give everyone in the home their own profile, so usage, goals, and savings stay personal and accurate.

  • Separate tracking per person
  • Personalized goals & streaks
  • Fair, accurate household totals

See your water use in numbers.

A quick calculator to estimate your household’s footprint and savings potential.

Water Savings Calculator

Answer a few quick questions. We’ll estimate your yearly use and savings.

How many people live in your household? 3
Average shower length (minutes)? 10
Showers per person per week? 7
Your estimated impact
Annual water usage
liters / year
Average time spent in shower
minutes / year
Average cost of water & heating
Estimated annual savings (30%)
gallons / liters · hours
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Assumptions: 2.5 gallons (≈ 9.5 liters) per shower minute at 2.5 gpm and an average total cost of $0.09 per shower minute (water + energy, electric heater). Based on U.S. averages. Actual usage and costs may vary.

Why households will choose River®

See how River® compares to going without it.

Feature
Without River®
Auto-detects every shower
Real-time tracking (time, flow, cost)
In-shower guidance & streaks
Water & energy savings
Install in under 60 seconds
Multi-user profiles & integrations

Note: Figures are indicative; actual savings depend on your household and habits.

Meet the Founder

Why I built River®

That photo is me in Vietnam at the exact moment the idea for River® came to me. I don't have the traditional credentials. I didn't go to college, I've never worked in corporate. What I do have is a dream to build something that makes the world better.

I've lived through water scarcity myself — my hometown of Bogotá went through a “Day Zero” rationing event that lasted a year. Later, while backpacking across Asia, I kept seeing the same bathroom signs: “Please shorten your shower.”

With my background in music and years of working with audio gear, I realized sound could unlock it — we could “listen” to water, make the invisible visible, and empower people to change. River® was born from that dream in Vietnam. Not to make people feel guilty, but to make them conscious. Because the world can't save what it can't see.

— Felipe, CEO & Founder of River®

Felipe, founder of River, in Vietnam

Frequently Asked Questions

Do I need a plumber to install it?

Not at all. River® attaches to your shower in seconds with no tools or plumbing required. Anyone can install it.

Does River® record audio or invade privacy?

No. River® never records or stores conversations. It only detects the frequency signature of water flow — nothing else. Your terrible singing, farts and privacy are fully protected.

How accurate is River®?

River® uses advanced sound recognition to detect shower activity with over 95% accuracy. The app turns this into clear insights on time, water used, and money saved.

Is River® waterproof?

Yes. River® is designed for bathrooms and built with a waterproof housing (targeting IP68 rating) to withstand steam, splashes, and everyday use.

Do I need Wi-Fi or Bluetooth for River® to work?

Yes. River® connects via Wi-Fi to function properly. This allows the device to sync with the app in real time, show your savings, and store your shower history securely.

How long does the battery last?

With normal use, River®'s rechargeable battery lasts weeks between charges. You'll get a notification in the app when it's time to recharge, and it's as easy as plugging in your phone.

How does River® actually save me money?

By making water and energy use visible, River® helps you cut unnecessary minutes in the shower. For the average family, it pays for itself in about 6 months through lower water and heating bills.

What if multiple people use the same shower?

The River® app supports multi-user profiles. Each person can track their own habits, making it easy for families and roommates to see their individual impact.

What if I don't use the app?

The device itself shows real-time feedback during every shower. The app unlocks deeper stats, multi-user profiles, and long-term savings insights.

Does River® work in hotels or gyms?

Yes. River® was designed for both homes and businesses. Hotels, gyms, and other facilities can install multiple units and track usage across locations.