Classroom noise monitor for a calmer room
Trusted by 10,000+ teachers worldwide
What we do
Classroom tools should help teachers lead the room, not add another system to manage. We bring groups, seating, timers, schedules, noise monitoring, and more into one flexible whiteboard. Teachers can build the exact classroom view they need and start in seconds.
What began as a simple group generator is now an all-in-one classroom workspace. Every tool is designed to be clear on a projector, quick to control, and easy to use without training.
18
Classroom tools
One connected toolkit for the school day
10,000+
Teachers
Using the platform in real classrooms
20+
Countries reached
Supporting teachers around the world
Features for better classroom self-regulation
Live visual feedback that helps students manage classroom volume without constant reminders.
Live volume detection
Track classroom sound levels in real time using your device microphone.
Custom noise thresholds
Set the acceptable volume level based on the activity happening in class.
Animated Puffy reactions
Students can watch Puffy stay happy while the room is quiet, look worried as it gets moderate, and puff up when it gets too loud.
Fullscreen display
Put the monitor on the projector so the whole class can self-correct together.
Private local processing
Use microphone input for live levels only, without storing or transmitting classroom audio.
Pearl Collector rewards
Earn one pearl every minute the room stays under your loud threshold. A simple, visible reward that nudges students toward quiet without verbal reminders.
As easy as 1, 2, monitor!
Three quick steps to show volume levels and help students self-correct.
Allow microphone access
Give the page permission to measure sound levels so the monitor can respond live.
Set your threshold
Choose the volume level that fits your activity, from silent work to collaborative discussion.
Display it to students
Show the live monitor on the projector so students can adjust their volume without constant reminders.
More tools for your classroom
Quick helpers for grouping, seating, timing, picking names, and keeping the lesson moving. Add the tools you need to one flexible whiteboard, arrange them around your lesson, and run the whole classroom without switching between separate apps.
Simple, affordable pricing
Start free or subscribe for just $2.99/month.
Free plan
Forever free
- All 18 Core Classroom Tools: Free forever
- No Signup Required: Start using the tools immediately
- Unlimited Everyday Use: No daily limits on the core classroom tools
- Presentation Mode: Designed for projectors and interactive whiteboards
- Saved on This Device: Boards and setups remain available in this browser
- Customizable Whiteboards: Combine, arrange, and resize tools for each lesson
Pro plan
- Everything in Free: Plus all Pro benefits
- 30 AI Credits Every Month: Shared across Write with AI, AI images and backgrounds, First-Then visuals, and the AI Sticker Maker
- Unlimited Cloud Saving: Save classes, boards, groups, seating charts, schedules, and other tool setups
- Multi-Device Sync: Continue on your school computer, laptop, tablet, or phone
- Live QR Polling: Let students vote from their devices and see results in real time
- Priority Support and Feature Requests: Get direct help and shape what we build next
Got questions? We have answers!
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