Common questions, answered.

Most schools have a working library in under an hour. Import the starter template for your discipline in a few taps, then edit anything that doesn't fit. Starting blank takes a little longer, allow an hour or two to write your first ten articles. Students can use the app the day you publish.

Any school or academy with a grade structure. This includes martial arts, dance, gymnastics, music, yoga, and any discipline where structured knowledge is passed from instructor to student. There are starter templates for 80 sub-disciplines across 10 categories.

Yes. C3NTR is built for schools worldwide. The platform is language-flexible and designed to help any school, from a single instructor in Tokyo to a school network in Europe, preserve their knowledge in a digital age.

Yes. Smart Document Import accepts Word documents (.docx), Markdown, and plain text files. The app reads the structure, suggests headings, and creates draft articles automatically. You review everything before anything is published.

No. C3NTR is a knowledge library for your curriculum, terminology and progressions. Booking, billing, scheduling and student records stay with the tools you already use. See integrations for how it fits alongside them.

No, and it isn't trying to be. Think of WhatsApp as the lobby: last-minute reminders, training updates and the day-to-day chatter of a school family. Keep it there. C3NTR is the library: a permanent, searchable, grade-aware home for your curriculum that students return to whenever they need it.

No. C3NTR is a library your school owns, built for how schools actually teach: grades, terminology and progressions. Students get calm, focused reading, not a feed competing for their attention.

You do. All curriculum content, student data, and school materials you upload to C3NTR remain yours. You can export or delete everything at any time. C3NTR stores your data securely under UK GDPR and the Data Protection Act 2018, it is never sold, shared, or used for advertising.

Instructors manage content directly in the app, create articles, organise with tags, drag to reorder, and edit inline across Learn, Glossary, and Explore tabs. The built-in editor supports rich text and Markdown with auto-save. The web content manager handles publishing from a browser. Articles, glossary terms, video, and audio are all available on every tier, including the free Seed plan.

C3NTR uses hierarchical tags instead of rigid folders. Any article or term can belong to multiple tags, and you can filter by any combination. Drag to reorder, bulk select, and move items between sections, all inline, without switching screens.

Yes. Articles are saved as your students browse. Open them once and they stay available with no connection, in the training hall, on the road, wherever they train.

Yes. The Seed plan is free forever for up to 30 students, with no credit card required. Move up to School (£39/mo) or Academy (£69/mo) when you outgrow it. Annual billing saves two months. See pricing for the full comparison.

Subscriptions are managed here on the website through Stripe, there's nothing to purchase inside the app itself. Plans are per school, billed monthly or annually with two months free. You can upgrade, downgrade, or cancel at any time from your account.

No. There is no minimum term. You can upgrade, downgrade, or cancel at any time. The Seed plan is free forever with no credit card required.

You can export all your content and student records before cancelling. After account closure, data is retained for 30 days then permanently deleted. Cancellation takes effect at the end of your billing period.

Academy plan schools get a direct line to our team. That means faster response times on support requests, help with content migration, and onboarding guidance when you need it. If something is blocking your school, we treat it as urgent.

Yes. C3NTR is built around UK GDPR and the Data Protection Act 2018 from the ground up. Your school's data sits on Google Cloud europe-west2 (London). Subject access requests are answered within one calendar month. Read more on the security & privacy page.

C3NTR includes two AI features. Search runs entirely on your device using a bundled model, your curriculum never leaves the phone. AI writing is optional: connect your own Claude or ChatGPT key to generate drafts. When you use it, your content is sent directly to the provider you choose using your key. C3NTR never stores, sees, or intermediates your API key or the content you send. Both features are opt-in, the app works fully without them.

No. Usage analytics are aggregated at school level, which articles are most read, not which student read them. Individual behaviour is never tracked, and student data is never used for advertising or profiling.