Seed
Free forever
Up to 30 students
All core features. No credit card.
Start free
80 starter templates · 10 categories
A knowledge home for any school
A knowledge home for any school
that teaches a craft.
From karate to calligraphy, vinyasa to violin, code to chess. Pick your discipline and start free.
→ See a quick tour
Free for up to 30 students
UK GDPR · EU (London)
Works offline
10
Categories from martial arts to creative
80
Starter templates, ready to import
£0
For your first 30 students. Forever.
<1hr
From signup to a working library
10 categories. Pick yours.
Every category page lists the disciplines we have templates for, with discipline-specific landing pages underneath.
Martial arts
Curriculum, etiquette and progressions in one library.
Dance
Vocabulary, technique and the rhythm of the studio.
Music
Technique, theory and the long arc of practice.
Yoga
Breath, asana and the language of the tradition.
Gymnastics
Skills, conditioning and the safety of progression.
Fitness
Programming, terminology and the why beneath the work.
Performing arts
Craft, vocabulary and the work behind the stage.
Academic
Curriculum, glossary and resources for every stage.
Wellness
Foundations, philosophy and a calm place to study.
Creative
Technique, materials and the habits of a maker.
Built for teachers, not for IT
C3NTR is meant to feel like writing in a notebook, not configuring software. No training course, no setup project.
Write directly in the app
Like a notepad. New articles are drafts until you publish, so nothing goes live by mistake.
Mobile-first authoring
Edit on the phone between classes or on the way home. The same library, the same edit screen.
A working library in under an hour
Import the starter template in a few taps. Edit anything that doesn't fit. Publish when ready.
UK GDPR · DPA 2018
UK GDPR compliant. Hosted in the EU (London).
C3NTR is built around UK data protection law from the ground up. Your school's data sits in the EU on Google Cloud London, the same region we manage from.
UK GDPR + Data Protection Act 2018
Built around UK GDPR Article 6 lawful bases. Subject access requests answered within one calendar month.
Hosted in the EU (London)
Your school's data sits on Google Cloud in the europe-west2 (London) region. No transfer outside the UK or EEA for core operation.
Encrypted in transit
All data is TLS encrypted. Access restricted to personnel with a clear business need.
Account deletion on request
Permanent deletion of personal data and content via in-app or written request.
Start free. Move up when you outgrow it.
School
£39/mo
£32/mo billed annually
Up to 150 students
Push notifications. 1 GB media storage.
Choose SchoolAcademy
£69/mo
£57/mo billed annually
Unlimited students
Multi-instructor publishing. Engagement analytics. 5 GB media storage.
Choose AcademyDon't see your discipline?
Tell us what you teach and we'll add a starter template. In the meantime, the app already works for any structured curriculum. Your library starts blank in a few minutes.
Ready to give your students a knowledge home?
Free for the first 30 students. No credit card. A working library in under an hour.
Start free for your school