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A sunlit home laundry nook with a washer and dryer, oak shelves, soft towels and a woven basket
LaundrySensenow

Washer is done. Move it to the dryer.

Tap = next · Hold 1 s = choose · Grab and shake it to start a load · sped up

One less thing on your mind.

Two magnetic sensors for the washer and dryer you already have. When a load is done, every phone at home gets a ping.

Pre-order the Duo · $129

Ships early December · free shipping

  • Magnetic. No tools.
  • Feels vibration. Never listens.
  • Every phone in the house.
  • Recharges over USB-C.
How it works

Set it up once. Then forget about it.

A magnet, a minute of calibration, and you’re done.

Illustration · real sensor screens
Tap any step, or let it play

A magnet holds one sensor on the washer and one on the dryer. No tools, no drilling. Pair them in the app over Bluetooth.

The app

Your laundry room, in your pocket.

Both machines at a glance. One button tells everyone you’ve got it.

The LaundrySense app (example household)
  • Reminders that don’t give up Plus

    If nobody moves the load, it nudges again. You choose how often, how many times, and your quiet hours.

  • Washer → dryer handoff

    Start the dryer and the washer alert clears itself. No tapping needed.

  • The whole house is in the loop

    Invite everyone with a code. Alerts go to every phone, and by email too with Plus.

  • Quick timer

    Hold the sensor’s button and get a done alert when your minutes are up. Handy for a timed dryer or a quick wash.

  • Works at the laundromat

    No Wi-Fi? The sensor hands the timer to your phone over Bluetooth, and your phone alerts you itself.

  • Remembers your machines

    Save washer #27, then move the sensor to #28 next week. Pick the machine in the app and it’s ready, no recalibrating.

  • Learns from a tap

    Called it too early, or missed a start? Tell the app “Not right?” and the sensor adjusts to your machine. If a load runs past 3 hours, it asks if it’s really still going.

  • “Moved it!” from the lock screen

    Tap it right on the notification. Everyone else’s reminders stop, and the activity feed shows who got it.

  • Looks after itself

    See each sensor’s battery and Wi-Fi in the app, and get a heads-up when it needs a charge. Updates install over Wi-Fi, never mid-load.

Plus · a little friendly competition

Laundry, but make it a game.

Move a load fast, score points, keep the streak going.

Faster moves, more points

  • Within 5 min100
  • Within 15 min75
  • Within 30 min50
  • Within 1 hour25
  • Later10
+100

Lightning fast!

Moved within 2 minutes. That’s a 7-load streak.

New badge: Lightning ⚡

Badges to collect

  • 🧺First Load
  • ⚡Lightning
  • 🔥On a Roll
  • 🚀Unstoppable
  • 🦉Night Owl
  • 🏆Laundry Pro
  • 💯Centurion

Example household shown. Points, streaks and badges are part of LaundrySense Plus.

The sensors

Small, simple, and a little cheerful.

One for the washer, one for the dryer. A screen and one button each.

Sensor screen: Washer running, 23 min so far
On the washer
Sensor screen: Dryer done, time to swap the load
On the dryer

These are the real screens, rendered from the sensor’s own firmware.

Why we built it

Nobody forgets laundry on purpose. The buzzer just goes off in a room nobody is in.

A washer runs for about an hour, and an hour is a long time in a real household. The industry’s answer is a new smart washer and dryer. We didn’t think anyone should replace two machines that work fine. So we built a small sensor that sticks onto the ones you have and tells the whole house.

Cam · Founder, Tucson, ArizonaRead the full story
Under the hood

Simple on purpose.

No camera. No microphone in use. One motion sensor and a little math.

15

seconds between checks while a load runs, and quicker near the end. Each check takes about a second, then the sensor goes back to sleep.

Mounting
Magnet. No tools, no drilling.
Sensing
Motion sensor (accelerometer). No audio.
Screen
1.14″ colour, 240 × 135. Ready, Running, Done!
Button
One. Press to move, hold to choose.
Checks
Every 15 s while running, about 2 min when idle. A second or less each.
Running
90 s of steady shaking within 3 min.
Done
Still for 3 min on a dryer, 8 on a washer.
Shortest load
10 min on a dryer, 8 on a washer. Anything shorter is ignored, so a bump or the machine next door can’t fake a load.
Network
2.4 GHz Wi-Fi. Bluetooth for setup and the no-Wi-Fi timer.
Power
Rechargeable. USB-C. Low-battery alert in the app.
App
Free. iPhone and Android.
Privacy & security

Your home stays your business.

A sensor that lives in your house should earn its spot.

It feels.
It doesn’t listen.

Cycles are detected from vibration alone. The sensor doesn’t record or send audio. The app only ever hears “dryer done”.

It only calls out.

On your Wi-Fi the sensor never accepts incoming connections, and it checks our HTTPS certificate before it says a word.

Its own key

A one-time, 10-minute pairing pass. Then each sensor gets its own key, and we keep only a hash of it. It stays locked to your household.

Bluetooth, briefly

On for first setup, for 5 minutes when you ask, or to hand a timer to your phone when there’s no Wi-Fi. Off the rest of the time.

Updates are checked first.

New firmware is verified against its SHA-256 fingerprint before it installs, and never mid-load or on a low battery. If it can’t check in afterwards, it rolls back.

We never see your card.

Payments run through Stripe, Apple or Google. Card numbers never reach our servers.

  • No ads or ad trackers in the app
  • We don’t sell your data
  • Global Privacy Control respected
  • Delete your account any time

Read the privacy policy

Plans

Free to start. Plus for the whole house.

Every Duo works with the free app. One Plus plan covers everyone at home.

Free

$0

Included with your Duo

  • “Done” alerts on every phone in the house
  • Live washer and dryer status
  • Washer → dryer handoff
  • Invite your household
  • Quick timer and saved machines
For the whole household

Plus

$2.99/month

or $29/year, about two months free

  • Everything in Free
  • Reminders that keep nudging until someone moves it
  • Quiet hours for reminders
  • Email alerts, to up to 6 addresses
  • Points, streaks, badges and the household leaderboard
Get Plus

Cancel any time from your account. Plans are billed per household through Stripe.

  • Pre-order todayEstimated to ship early December 2026
  • 14-day returnsIf it arrives damaged or doesn’t work
  • The app is freePlus is optional, cancel any time
  • A real person answerssupport@laundrysense.io
Good questions

Let’s keep it simple.

More answers about setup, Wi-Fi and calibration are on the help page.

Can I keep my washer and dryer?

That’s the idea. LaundrySense turns the washer and dryer you already own into a smart washer and dryer. The sensors stick on with a magnet and feel for vibration, so they work with front-loaders, top-loaders and stacked pairs, gas or electric, new or decades old. No wiring, no Wi-Fi-enabled appliance needed.

How does it know the laundry is done?

It feels for vibration. When the machine shakes steadily, it’s running. Once things have been still for a while (a few minutes for a dryer, a bit longer for a washer, so rinse pauses don’t count), it sends the alert.

Is it listening to my home?

No. The current firmware detects cycles from vibration alone. It doesn’t record or upload audio. Only events like “washer done” are sent to the app.

Does my phone need to be nearby?

Only during setup, which uses Bluetooth. After that, the sensors talk over Wi-Fi, so you get alerts anywhere. The one exception is the quick timer where there’s no Wi-Fi: keep the app open next to the sensor when you start it.

Does it work at a laundromat?

Yes, with the quick timer. Hold the sensor’s button when you start the machine. With no Wi-Fi around, the sensor passes the timer to your phone over Bluetooth, and your phone alerts you when it’s up. Save each machine you like (say, washer #27) and switch the sensor between them in the app.

Can someone else take my sensor?

Not without your say-so. Each sensor is locked to your household. To hand one over, an admin unlocks it for 15 minutes and confirms it’s them with their personal PIN (or Face ID or a fingerprint, once they’ve set it up on that phone).

Do I need a subscription?

No. The free app pings everyone in your household when a load is done. Plus ($2.99/month or $29/year for the whole household) adds reminders that keep nudging, quiet hours, email alerts and the leaderboard. Cancel any time.

How much is it?

The LaundrySense Duo (one sensor for the washer, one for the dryer) is $129. Just need one, for a washer-only or combo machine? The Single is $79. The Duo ships free during our founder special (the Single is $5.99 to ship), every cover colour costs the same, and the app is free.

Make room for more of your day.

Pre-order the Duo · $129