Seed
Free forever
Up to 30 students
All core features. No credit card.
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7 starter templates
A knowledge home for academic schools.
Curriculum, glossary and resources for every stage.
→ See a quick tour
Free for up to 30 students
UK GDPR · EU (London)
Works offline
An academic school, a chess club, a coding bootcamp, a language programme, a maths circle, runs on a clear curriculum and a shared language. Topics have to be sequenced, terms have to be defined, and students need a place to read between lessons.
C3NTR offers that place. Articles laid out by topic and difficulty, glossaries of the language your subject uses, worked examples, and resources for each stage of learning. Students reread, teachers stay consistent, and your curriculum holds its shape as you grow.
Find your subject below, or browse all seven academic disciplines we have starter templates for.
7 academic disciplines
Each discipline has a starter template you can import in a few taps. Pick yours below.
Chess
ECF / FIDE ratings, your club's grouping
See chess →Coding
Levels, beginner, intermediate, advanced, project-based
See coding →Creative Writing
Levels, beginner, intermediate, advanced, MFA-prep
See creative writing →Mandarin
HSK levels (HSK 1–6), your school's progression
See mandarin →Mathematics
GCSE, A-Level, IB, your school's progression
See mathematics →Robotics
Levels, beginner, intermediate, advanced, competition
See robotics →Spanish
CEFR levels (A1–C2), DELE levels, your school's progression
See spanish →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.
What C3NTR is, and what it isn't
A library your school owns
Another booking or billing system
Built for how schools actually teach
A generic course builder
Calm, focused reading for students
A feed competing for attention
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 academic 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 academic 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