Essai AI Products for Hong Kong Schools
One platform for teachers, students, parents and principals — aligned to EDB CDC curriculum and Hong Kong exam rubrics.
100+ schools have used Essai (paid + trial) · EDB HK$500k funding eligible
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for Chinese
Essai 中文
Writing · Speaking · Reading · Listening — Cantonese + Putonghua
for English
Essai 英文
Writing · Speaking · Reading · Listening
for Math
Essai 數學
HK’s most complete DSE + TSA math practice platform.
for Humanities
Essai 人文
New Primary Humanities to DSE History / Chinese History / Geography.
for Science
Essai 科學
Primary Science to DSE electives — one self-paced path.
for ICT
Essai ICT
From primary Scratch blocks to DSE ICT — one self-paced journey.
for Every Subject
Essai 全科
Any subject · paste YouTube / photo / text → AI auto-generates MCQs.
What ESSAi does across every subject
Individual accounts for every teacher and student. No app install — works on iPad, iPhone, Android, Mac, and PC via web.
No Model Lock-in
ESSAi runs on Qwen, GPT, Gemini, and other leading LLMs — schools pick the model that fits their data-residency and policy requirements.
Real-time grading · all subjects
Students submit handwritten or typed work; AI grades and gives token-level feedback in seconds. Works across writing AND science formulas (Chemistry, Physics, Biology).
· Chinese · English · Math · Chemistry · Physics · Biology
Multimodal generation
Teachers and students generate images, audio (Cantonese / Mandarin / English TTS), and short videos directly inside ESSAi for lesson materials and projects.
· Image · Audio (Cantonese · Mandarin · English) · Video
PhET interactive experiments
Students run physics/chemistry/biology simulations from the University of Colorado PhET library inside ESSAi self-study — circuits, atomic structure, ecosystems, and more.
· Physics · Chemistry · Biology simulations
Scratch coding playground
Built-in Scratch editor for ICT self-study. Students complete guided lesson tasks OR free-build any project they imagine — game, animation, story.
· Guided tasks · Free-build mode · Class showcase
Any device · No install
Pure web platform — open a browser and sign in. No app store approval, no school-IT install rollout. Same individual account for teacher / student across every device.
· iPad · iPhone · Android · Mac · PC