PDF activityWatch the full guide ↗
Authentic app capture
ActivityLock is in beta. If you experience an issue, contact us directly.
A little more focus. A lot more learning.
Your lesson.
Their focus.
Bring your worksheets and questions into one focused classroom activity. Students do the work. You see their progress, support them, and keep the lesson moving.
Start with your own content. Your students join through a link.
Designed and developed by teachers, for teachers.
A real worksheet. A new way to work.
ActivityLock · PDF workspace
Write, add text, or upload an image. This demo stays in your browser and resets when refreshed.
Write. Type. Add an image.Interactive browser demo
Your existing PDFsCustom questionsLaptops & tabletsTeacher-controlled recovery
One lesson, connected from start to finish
See the classroom
come together.
Follow a real Forces and Motion lesson. Choose a step to see the actual ActivityLock screen and what happens next.
Authentic app captures. Fictional demo students.
Keep the worksheet you already teach.
Upload a PDF and choose the tools and activity settings your lesson needs.
PDF preparation
From your content to their workspace
Two ways to create. One clear student experience.
See how a teacher creates a PDF activity or a Custom activity, then explore what students actually see. Choose each step to follow the real workflow.
Custom activityWatch the full guide ↗
Authentic app capture
These are recorded product examples with fictional demo students. Your activities use the content, tools and settings you choose.
The classroom story · 45 seconds
Keep the Activity
under Control.
See student work, live teacher review, a full-screen interruption, and the return to learning—one connected classroom workflow.
Video playback is unavailable. Open the film directly
Useful tools. Clear teacher decisions.
Built around the
way you teach.
Use a lighter activity for practice, or choose a locked assessment when more supervision is appropriate. You decide how the lesson runs.
Start with your content.
Upload an existing PDF or build a custom activity with questions, written responses and calculations.
Focus with a human touch.
In a locked activity, review recorded interruptions and help the student continue with the teacher Activate control.
See the thinking, too.
Follow PDF work in the live viewer. Use the classroom conversation alongside the activity status to decide who needs support.
Review with confidence.
Give PDF feedback and review submitted answers. Optional AI-assisted marking supports your judgement; you review the suggestions.
Start small. Choose what you need.
A clear plan
for your classroom.
Explore the free plan or compare paid plans. Select a billing period to see both the monthly rate and the full amount billed.
A special welcome for our first 300 members
First 300. Half price.
An opening offer for the first 300 eligible paying accounts. Your first paid plan is half price, including Institution. Eligible members also get 50% off every Activity-credit purchase while beta is active. AI token packs are separate.
Monitor + Examiner + InstitutionActivity credits: 50% off throughout beta
Free
A simple place to begin.
$0.00
Monitor
For everyday teachingMore room for classroom activities.
$11.00
Examiner
More capacity and teaching tools.
$16.00
More room for your lessons
Need extra Activity credits?
Add extra Activities to your current plan, from $1 per Activity. Move the slider to choose how many you want.
One-time total
$1.00Activity credit pricing details
Each credit creates one extra PDF or Custom Activity using your current plan’s features. Purchase as needed in the app.
Mark more. Stay in control.
AI Marking, as you need it.
$5for 500 AI tokens
1 token = 1 PDF page
1 token = 1 full Custom Activity submission
Buy AI tokens as a one-time add-on within the app after subscribing. Start with 500 tokens for $5, then top up whenever you need more. AI token packs keep their regular price during beta.
Both PDF marking modes use one token per page. Preparation and analysis are included. You review the AI suggestions.
More about AI credits and result emails
AI token packs start at 500 tokens for $5, with 500-token steps at $5 each. One token AI-marks one PDF page or one full Custom Activity submission. Preparation and analysis are included; explicit re-marking uses new tokens. Buy tokens as needed inside the app after subscribing.
Result email allowances every 30 days: Free includes 25 Custom + 25 PDF emails; Monitor includes 400 combined; Examiner includes 1,000 combined. Each recipient and resend counts. Institution teachers receive the Examiner allowance.
For schools & teaching teams
Shared tools.
Individual teaching.
Give your teachers a consistent place to prepare activities and review work. Explore institution pricing by teacher account, with a clear billing total.
Teacher accountsInstitution settingsOrganizational oversight
Plan your teaching team
Institution is included in the 50% beta launch offer.
AI tokens are a one-time add-on, starting at 500 tokens for $5 per teacher. Teachers can buy more in the app after subscription, whenever needed.
Original total—
Beta offer total—
Choose your institution customizations to see the full price: teacher accounts, billing period, and optional AI Marking.
Minimum 3 teachers. Plans are selected inside your account.
A helpful next step
Answers, not guesswork.
Before your first lesson
Good questions.
Clear answers.
Do students need a teacher account?
No. Students use the activity link you share and provide the information your activity requires. Teachers create an account to prepare and manage activities.
Can I use a worksheet I already have?
Yes. Upload a PDF and choose the tools and settings for the activity. Students can work directly on the document. You can also create custom questions.
What happens when a student exits full screen?
In a Locked activity, a full-screen exit can restrict the attempt. The teacher reviews the recorded event and selects Activate. The student re-enters full screen to continue with preserved work.
Does ActivityLock lock the whole device?
The controls apply to the activity. Monitoring features depend on the browser and device. Choose the level of supervision that fits your lesson and test the devices you intend to use.
Who decides the final marks?
The teacher. You review submitted work and feedback. With optional AI-assisted marking, you review suggestions before accepting or editing the teacher mark.
Your next lesson starts here