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Koydo Cortex™ Adaptive Intelligence
The science of knowing how your child learns
Cortex connects practice results, completed activities, hint use, review timing, and mastery progress. Those understandable learning signals can help Koydo guide difficulty, pacing, and what comes next.
Families stay in control of AI access. Verified parents can review recent AI activity, while activity receipts leave learner prompts and Koydo's answers out of the family summary.
Cortex methodology
Six learning principles. One intelligent system.
Each principle explains a practical part of the learning experience without promising a guaranteed score or identical result for every learner.
Help when a learner needs it
Guided explanations
Timely hints, worked explanations, and follow-up questions can help a learner move forward. Koydo applies these tutoring principles without promising that software will reproduce the results of a human tutor.
Progress, not hidden surveillance
Learning signals that matter
Practice results, completed activities, hint use, and mastery progress help Koydo choose a useful next step. Public explanations focus on understandable learning evidence instead of internal signal counts.
Useful practice without pressure
Right-sized challenge
Koydo can use recent performance to offer an easier explanation, another example, or a more challenging activity. Learners can keep moving without a guaranteed or one-size-fits-all outcome.
Revisit ideas over time
Spaced review
Review schedules bring concepts back after earlier practice. The goal is stronger recall through repeated use—not a promise that any item will be remembered permanently.
Discover, practice, review, revisit
A complete learning cycle
Connected activities help learners encounter an idea, practice it, use it in another context, and return to it later. Progress remains visible instead of disappearing at the end of one worksheet.
A useful next step
Practice that responds
Difficulty, pacing, and the next activity can respond as a learner works. Family controls, clear limits, and honest errors keep the experience understandable.
Why connected practice matters
Practice, review, and family visibility
Learning outcomes differ by learner, time, context, and practice. Koydo supports the work; it does not promise a percentile, score gain, or replacement for a qualified teacher.
- Practice results and progress — completed activities and checked answers create a clearer record of what a learner has practiced.
- Review over time — spaced practice can bring earlier concepts back without claiming perfect or permanent recall.
- Family visibility and control — verified parents can manage AI access and review recent activity receipts without prompts or answers in the receipt.
How features feed Cortex
Connected learning activity guides what comes next
Relevant progress from connected Koydo tools can guide another explanation, review, or activity without claiming to read a learner's mind.
- Games & Activities — Completed activities and practice results show which concepts a learner has used and where another example may help.
- Labs & Simulations — Checked answers and completed experiments connect hands-on exploration to the concepts available for later practice.
- Reading & Flashcards — Completed reading, card practice, and learner self-ratings can help schedule useful review over time.
- Music & Art — Creative activities broaden the learning path without claiming to infer private traits, emotions, or attention from a learner.
- AI Study Help — Receipted AI tools can explain, translate, review writing, build study cards, and support practice. Verified parents can review recent AI activity without seeing prompts or answers in the receipt.
- Meridian Curriculum — A shared curriculum map connects subjects, stages, and learning materials so recommendations can point to an available Koydo activity.
Care and trust
Built by parents. Trusted by families.
We know what it feels like to worry about screen time. That is why Cortex was designed with care, privacy, and developmental appropriateness at its core.
- Privacy by Design — Koydo does not sell children's personal data. Age and consent checks protect AI access.
- Age-Aware AI — AI access and safety behavior follow the learner's age and verified family permissions.
- Family-Controlled AI — verified parents can manage access and review recent AI activity receipts.
- Respectful Design — clear limits and honest errors support learning without streak shaming or fake fallback answers.
Learning tools
18 connected tools. One learning experience.
Explore the learning tools available across Koydo. Each tool has a clear purpose, and connected progress can help guide a useful next step.
AI Tutor
Adaptive practice powered by Koydo Cortex — AI that grows with your learner
Educational Games
Educational games mapped to curriculum — learn by playing
Science Labs
8 virtual labs — chemistry, physics, biology, earth science, and more
Music
1,190 tracks across 45 collections — learn music theory, rhythm, and instruments
Art Studio
Draw, paint, and create with guided art activities and free canvas
50+ Languages
Full curriculum and AI in 50+ languages — learn in the language your family speaks
Flashcards
Spaced repetition flashcards that adapt to what your learner needs most
Whiteboard
Freeform digital whiteboard for solving problems and drawing diagrams
Arena
Challenge friends and classmates in live academic competitions
Study Rooms
Focused study sessions with timers, ambient music, and progress tracking
Certificates
Earn printable certificates and digital badges for completed courses
Parent Dashboard
Track progress, set boundaries, and manage up to 6 learner profiles
Teacher Dashboard
Assign work, track class progress, and generate reports for your students
Homeschool Tools
Curriculum builder, gradebook, transcripts, and flexible scheduling
SAT & AP Prep
SAT, ACT, AP, and A-Level practice with adaptive difficulty and simulations
Audiobooks
850+ hours of narrated educational audiobooks with comprehension checks
Ebooks
1,200+ illustrated educational ebooks from early readers to advanced topics
AI Companion
An always-present study buddy that tracks your mood, speaks in your language, and celebrates your wins
Exam preparation
Practice for many exam goals.
Koydo's audited catalog includes 177 active exam tracks and 1,000,000+ practice questions. Availability and coverage vary by exam and locale.
177
Active exam tracks
Catalog count audited in the public claims registry
1M+
Practice questions
Conservative public floor across the question catalog
7,822
Past-paper questions
Available across supported country-board adapters
Tools for exam day and the weeks before it.
- Timed PracticeUse timed sets to rehearse pacing and the pressure of a fixed clock.Learn more →
- Adaptive DiagnosticUse answers from a short diagnostic to identify likely strengths and gaps.Learn more →
- Mastery HeatmapReview topic-level practice status and choose where to focus next.Learn more →
- Spaced ReviewSchedule earlier material for another round of practice over time.Learn more →
- Past PapersPractice with available past-paper sets, timing tools, and answer review.Learn more →
- Study PlannerBuild a weekly plan from the exam date, available study time, and selected goals.Learn more →
- Practice AnalyticsTrack practice trends and topic progress without treating a forecast as a guaranteed score.Learn more →
- Progress ReviewReview plan completion, recent practice, and remaining weak areas before exam day.Learn more →
Exam preparation
Plan, practice, review
Koydo can help organize practice and explain difficult material. Exam results still depend on the learner, the exam, preparation time, and many factors outside any app.
Give your learner a more connected practice path.
Start free. Practice, progress, review, and AI study help can work together from the first session.