Faster moves, more points
- Within 5 min100
- Within 15 min75
- Within 30 min50
- Within 1 hour25
- Later10
Washer is done. Move it to the dryer.
Tap = next · Hold 1 s = choose · Grab and shake it to start a load · sped up
Two magnetic sensors for the washer and dryer you already have. When a load is done, every phone at home gets a ping.
Ships early December · free shipping
A magnet, a minute of calibration, and you’re done.
A magnet holds one sensor on the washer and one on the dryer. No tools, no drilling. Pair them in the app over Bluetooth.
Two quick readings: one with the machine off, one while it’s running. Then the screen switches off.
Every so often the sensor wakes for about a second and feels for shaking. Steady shaking means the machine is running.
Once things go still (3 minutes on a dryer, 8 on a washer), every phone in the house buzzes. Nobody needs to be nearby.
Both machines at a glance. One button tells everyone you’ve got it.
Finished 4 min ago · 100 pts up for grabs
32 min so far
If nobody moves the load, it nudges again. You choose how often, how many times, and your quiet hours.
Start the dryer and the washer alert clears itself. No tapping needed.
Invite everyone with a code. Alerts go to every phone, and by email too with Plus.
Hold the sensor’s button and get a done alert when your minutes are up. Handy for a timed dryer or a quick wash.
No Wi-Fi? The sensor hands the timer to your phone over Bluetooth, and your phone alerts you itself.
Save washer #27, then move the sensor to #28 next week. Pick the machine in the app and it’s ready, no recalibrating.
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.
Tap it right on the notification. Everyone else’s reminders stop, and the activity feed shows who got it.
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.
Move a load fast, score points, keep the streak going.
Moved within 2 minutes. That’s a 7-load streak.
New badge: Lightning ⚡Example household shown. Points, streaks and badges are part of LaundrySense Plus.
One for the washer, one for the dryer. A screen and one button each.


These are the real screens, rendered from the sensor’s own firmware.
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.
No camera. No microphone in use. One motion sensor and a little math.
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.
A sensor that lives in your house should earn its spot.
Cycles are detected from vibration alone. The sensor doesn’t record or send audio. The app only ever hears “dryer done”.
On your Wi-Fi the sensor never accepts incoming connections, and it checks our HTTPS certificate before it says a word.
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.
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.
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.
Payments run through Stripe, Apple or Google. Card numbers never reach our servers.
Every Duo works with the free app. One Plus plan covers everyone at home.
Included with your Duo
or $29/year, about two months free
Cancel any time from your account. Plans are billed per household through Stripe.
More answers about setup, Wi-Fi and calibration are on the help page.
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.
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.
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.
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.
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.
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).
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.
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.