Curriculum Builder & Grade Locking
Full sections → articles hierarchy with grade enforcement. Students unlock content as they progress through ranks.
School Branding & Theme Studio
Custom colours, logos, navigation labels, and a full dark/light theme studio with live phone preview.
Web Content Manager
WYSIWYG article editor, roster management, settings dashboard, and tabbed image picker with free stock photos.
Analytics Dashboard
View counts per article and term, announcement open rates, member activity snapshots, and tier usage.
80 Discipline Templates
Ready-made curriculum structures across 10 categories — martial arts, dance, music, yoga, gymnastics, fitness, performing arts, academic, wellness, and creative. 80 sub-disciplines as starting points — not a fixed list. Works for any school, with or without grades.
On-Device Semantic Search
Find any technique or concept by meaning, not just keywords. Powered by a bundled AI model — zero network calls, works fully offline. Your curriculum never leaves the phone.
Smart Document Import
Import a Word document, Markdown file, or plain text directly into your curriculum. C3NTR reads the structure, suggests headings, and creates draft articles automatically.
AI Writing Assistant
Connect your own Claude or ChatGPT key and generate draft articles from notes or bullet points. You review before anything is published. Your API key stays on your device — C3NTR never touches it.
Favorites System
Heart any article or glossary term to save it. Per-user, per-school favorites with an animated heart button and a dedicated Favorites tab for quick access.
Global Unified Search
Centre-screen search overlay across articles, glossary, and explore content. Keyword and semantic matching, grade filtering, recents, filter chips, and an "AI found related" section — all on-device.
Inline Content Management
Drag-and-drop reorder, bulk select and edit, inline tag editing, and cross-section moves — directly in Learn, Glossary, and Explore tabs. No more switching screens to organise.
Content Editor Overhaul
Dual Rich Text and Markdown editing modes with a floating glass toolbar, slash commands, auto-save, and a title dropdown menu. Write curriculum content faster, your way.
Tag-Based Content Organization
Hierarchical tags replace flat sections for flexible content grouping. Inline tag picker, per-item tag sheet, and OR-filter logic let you organise and find content naturally.
Explore Tab Redesign
A curated landing with Recent Articles, Featured Articles and Terms, tag filter sheets, and inline tag pills. Refreshed with an Apple Books–style section picker, icon-only sort and filter controls, and four browse modes — All, Unread, Favourites, and Continue Reading.
Library & Continue Reading
Favourites evolved into a full Library hub. Continue Reading surfaces articles in progress with "X min left", automatic and monotonic scroll-position tracking, and read-state indicators on every card. A "Pick up where you left off" widget on the home screen takes you straight back in.
What’s On (Today)
A single Today tab for announcements and events — monthly calendar with type-coloured dots, recurring events with natural-language recurrence, iPhone Calendar integration, grouped headers (Today · Yesterday · This week · Earlier), swipe-to-read, swipe-to-edit, and one-tap "Mark all as read".
80 Sub-Disciplines
Expanded from 8 disciplines to 80 sub-disciplines across 10 categories — starting points, not a ceiling. Works for any school, with or without a grading structure. Includes a wizard picker and school identity settings.
Template Library Overhaul
Templates now use the tag system and content items — richer starting points that match the new flexible organisation model.
Home Screen Builder
Customise your school's home screen with edit mode, drag-to-reorder, and 12 widget types — make the first screen students see feel like yours.
Platform Analytics Dashboard
Platform-wide analytics with 20+ metrics across 8 groups — school health, content engagement, roster retention, and growth trends at a glance.
Setup Wizard & Checklist
Smart deep-links from the setup checklist jump directly to the right settings field. Shimmer loading, expand-all, and focused fields guide new schools through onboarding.
iOS Liquid Glass UX
Floating glass toolbar, focus mode, and inline selection menu — a polished, modern editing experience designed for the latest iOS.
Android App
The C3NTR Android build is ready and heading to Google Play. Same features, same design language, same curriculum — now on every phone.
Live Billing & Subscriptions
Stripe-powered subscriptions go live — schools can upgrade from Seed to School or Academy plans directly.
Attendance Tracking
Mark class registers per session, surface consistency streaks, and recognise your most dedicated practitioners.
CSV Roster Export
Export your full student list, grade levels, and membership status as a CSV for record-keeping or migration.
Event Management
Organise seminars, grading days, and open mats with RSVP, cap limits, and attendance tracking built in.
Smart Curriculum Gaps
Surfaces which topics students search for most but find the least content on — helping instructors prioritise what to write next. Processed on-device, no individual data leaves the phone.
AI Content Assistant
Speak or type rough notes and watch them become structured, grade-tagged curriculum articles. Built to run in a privacy-respecting pipeline — your content is never stored by a third-party AI provider.
Native Video Hosting
Upload technique videos directly to C3NTR — HLS streaming, grade-locked, no YouTube link required.
Multi-Language Admin
Admin interface in German and French — built for European schools and international school networks.
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Shape What's Next
Vote on ideas from the community. The most-wanted features get prioritised first.
Student Achievement Badges
Gamify the journey with digital badges for milestones, streaks, and personal bests.
Audio Pronunciation on Terms
Record audio for terminology cards so students hear the correct pronunciation of techniques and concepts.
Sparring Partner Matchmaking
Match students by weight, grade, and experience for safer and more productive sparring sessions.
Bulk Messaging to Parents
Send class updates, newsletters, or event reminders to all parents with a single action.
Biometric / Face ID Login
Let returning students unlock the app with Face ID or fingerprint — no OTP needed on trusted devices.
Under-16 Parental Consent
GDPR-compliant parental consent flow for junior members — auto-triggered when a student's age is below 16.