redmarker

For tutoring centres

Mark maths drill sheets across your centre in seconds

redmarker helps tutoring centres and maths programmes check completed worksheets from a photo — organise results by student or group, spot gaps early, and cut marking time by up to 93%.

Book a demoSee the product tour

Pilot programme available for UK tutoring centres. We will walk through your worksheet types and marking volume on a 15-minute call.

Manual marking does not scale with your centre

Most centres still mark paper drills by hand. That works until volume, tutor turnover, or inconsistent feedback slows everything down.

Hours lost every week

Tutors and centre managers spend evenings checking stacks of drill sheets instead of preparing sessions or supporting families.

Inconsistent feedback

Different tutors mark differently. Mistakes get missed, progress is hard to compare, and quality varies across rooms.

No centre-wide view

Spreadsheets and memory do not scale. You need a simple picture of accuracy and gaps across students and groups.

How centres use redmarker

Step 1

Capture completed sheets

Tutors or admins photograph completed maths worksheets with the app. Smart scan handles messy handwriting and printed drills.

Step 2

Review marked results

Answers are checked in seconds with confidence scores. Corrections are one tap away when handwriting is ambiguous.

Step 3

Track progress by group

Results organise by student and class. Accuracy charts show who is improving and who needs intervention.

Why centres choose redmarker

  • Cut marking time by up to 93% compared with manual checking
  • Works with printed and handwritten drill sheets your centre already uses
  • GDPR-aligned processing with clear privacy documentation for your team
  • Start with a pilot — no long procurement cycle required

Plans for centres

Try the app free, top up with credit packs, or talk to us about an institutional plan for higher volume and support.

Transparent Pricing

10 credits/month on Free, resetting monthly; unused credits don't roll over.

Top up with an Essentials or Value pack in the app (pay-as-you-go). Indicative prices are shown on the cards.

Add Credits (Top-Up)

Free

Perfect for trying out redmarker

  • 10 worksheet credits per month
  • OCR-powered validation
  • Organisation & filtering by learner or class
  • Progress tracking
  • Manual corrections
  • Works with leading maths-drill worksheets
  • Concurrent processing
Get Started Free
Essentials Pack
50 Worksheet Credits
£3.99
8.0pper credit
  • All Free features, plus your purchased credits.
  • Priority support
  • Paid credits apply automatically after your monthly free allowance.
  • Smaller top-up when you only need a modest number of extra credits.
Buy Essentials Pack in the app
Most Popular
Value Pack
200 Worksheet Credits
£11.99
6.0pper credit
  • All Free features, plus your purchased credits.
  • Priority support
  • Paid credits apply automatically after your monthly free allowance.
  • Larger bundle, more credits in one purchase for heavier marking volume.
Buy Value Pack in the app

For centres

Schools, centres, and organisations

  • Unlimited worksheet credits per month
  • Much higher concurrent processing to complete bulk checks faster
  • Custom features
  • Priority support
Contact us

Purchased credits expire after one year of account inactivity. Sign in at least once a year to keep credits and your account active.

Prices shown are INDICATIVE only. For accurate pricing in your region, see the App Store or Google Play Store.

Exchange rates by Frankfurter (ECB)

Tutoring centre or maths programme marking at scale? Book a demo

Your Privacy & Security

We never store your worksheet images on our servers

Data Privacy

All worksheet images and student data are stored locally on your device. We never store your images or personal information on our servers. Your data stays in your control.

Secure Image Processing

Images are processed securely through encrypted connections and immediately deleted after processing. We use industry-standard encryption to protect your data in transit.

GDPR Compliant

We comply with GDPR and other data protection regulations. You have full control over your data with export and deletion features. Privacy Policy

Your data, your control. All worksheet images and student information are stored exclusively on your device. We only store minimal metadata (usage counts, account linkage for quota) associated with an anonymous token, never personal information.

Privacy PolicyTerms of ServiceGDPR Compliance

Questions from centre owners

Who is redmarker for?

Tutoring centres, maths programmes, and organisations that mark paper-based maths worksheets or drill sheets at volume. It is a marking app — not a worksheet library or LMS.

How does a demo work?

Book a 15-minute call. We will walk through your worksheet types, marking volume, and how tutors would use the app day to day. Book a demo →

Is student data safe?

Worksheet images are processed securely and are not stored on our servers. Results and organisation data stay on your devices. See our Privacy Policy and GDPR page.

Do you support institutional pricing?

Yes. Centres with higher volume can discuss unlimited credits, bulk processing, and priority support. Contact us for institutional pricing →

What worksheet formats work today?

Printed and handwritten maths drill sheets, including many Kumon-style layouts. We are expanding supported formats — tell us what your centre uses on the demo call.

Ready to cut marking time at your centre?

Book a short demo and we will show how redmarker fits your worksheets, tutors, and weekly marking volume.

Book a demoContact sales