A dual-world AI learning space designed for Hong Kong students — knowledge-tree progress, AI snap-and-ask help, character companions.
All data stays in Hong Kong. We never train AI on your work.
Dimension Space (次元空間) is an AI study app built for Hong Kong DSE and junior-secondary students, developed by FLYER GROUP LIMITED (Starcloud Tutoring) and launched on the App Store in 2026 for iPhone and iPad. It covers a range of DSE and junior-secondary subjects (Chinese, English, Math incl. M1/M2, Physics, Chemistry, Biology, History, Geography, Economics and more). Core features include an AI snap-and-ask three-layer hint chain (hint → thinking → answer), a knowledge-tree progress system, a built-in dictionary, and HK-style Cantonese-inflected Traditional Chinese explanations. All data is stored in Hong Kong and is never used to train AI models. By design it avoids gacha, infinite scroll, and manipulative monetisation. A free trial is available.
Covering a wide range of subjects across DSE and junior secondary — Chinese, English, Math (incl. M1/M2), Physics, Chemistry, Biology, History, Geography, Economics and more. Every knowledge point comes with character-driven story problems. See all subjects →
Each subject branches into chapters → knowledge points → 4-tier problem sets (Bronze / Silver / Gold / Diamond). Streak N correct in a row to graduate. No gacha, no FOMO timers — just real progress.
Snap any problem and your AI companion answers immediately on a Hong Kong endpoint — with a three-layer hint chain (hint / thinking / answer) so you don't just copy the result. Each question links back to the right node in the tree.
Choose "Titan Outpost" for cosmic adventure, or "Cozy Loft" for quiet reading. Switch any time. Your AI companion changes outfit and tone, but your progress and friendship stay continuous.
What sets us apart is the shortcuts we refuse to take in a few key places.
Dialogue uses what HK students actually sound like: "呢題我同你一齊拆" (let's break this down together). Not Taiwan / Mainland Chinese, not Google-Translate-style.
"Chickens and rabbits in a cage" becomes "A-Jit goes on a starfield expedition and finds aliens in a cage" — same problem, re-skinned by your character × world choice. Khan and Duolingo cannot do this for HK students.
No gacha, no infinite scroll, no streak-break punishment, no emotional dark patterns to push gem purchases. Streaks reward only — never penalise.
Monthly parent reports + on-demand progress check. Chat content stays private by default, respecting children's right to express themselves.
