It is 11pm, the test is tomorrow, and there is nobody to ask. That is the moment this was built for.
Call a subject tutor at any hour. It explains from your own syllabus with speech, a live whiteboard and diagrams drawn as it talks.
An AI classmate rather than a teacher. Work through questions together, argue the answer out, and revise without being lectured.
Maths and science problems worked one line at a time — with the common mistakes that lose marks called out.
Flashcards, mind maps, mnemonics and side-by-side comparisons, generated against the topic you are actually revising.
A tutor is the teacher in the room — ask it anything and it explains, patiently, as many times as you need.
A practice buddy is a classmate. It works beside you rather than above you, gets things wrong sometimes, and lets you talk the answer through. When you are revising rather than learning something new, that is usually what you want.

KCPE, KCSE, IGCSE, O-Levels. Some tutors and buddies do nothing else.
Sit a full paper in KCPE, KCSE, IGCSE or O-Level format, under exam conditions, and get it marked the moment you finish.
Tutors and buddies who work only on exams — past papers, marking schemes, and the questions that come back year after year.
Every answer scored against the real criteria, with feedback saying exactly which mark you missed and why.
Summaries, key points and recall questions for each topic, so the last week before a paper is not the first time you look back.
Step inside the lesson. A cell, an engine, a circuit — things you can walk around, take apart and rebuild instead of memorising a diagram of them.
Premium unlocks the 3D and VR courses, a custom avatar and spaceship, and the STEM Garage where you wire real components in simulation.

Gamified quests that turn a topic into something you play through. XP, badges and a spaceship you upgrade as you go.
A virtual hardware lab. Wire sensors and microcontrollers, simulate the circuit, and see why it does not work before you build it for real.
Clubs for AI, robotics, 3D design, medicine and film — team projects and challenges with students from other schools.

Your account is free, and so is buying into your curriculum. Cogs are what the AI runs on — every tutor call, mock paper, flashcard set and generated diagram spends them.
A subscription unlocks what you can reach. Cogs are what you spend while using it — top up any time, and you only pay for what you actually generate.