See what a year of practice can do
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Impact report · school year 2025-26
What 24,510 students did on thinka this year
Between September 2025 and July 2026, students answered 1.4 million questions on thinka and got roughly two in three of them right. Teachers built more than 34,000 assignments. We pulled the numbers to see what a year of real studying looks like, and whether the students who kept at it got better. They did.
24,510
students practised this year
1,417,372
questions answered
138,646
practice sessions completed
416,877
hours of focused study
Students
A study rhythm that follows the school calendar
Activity climbed through the autumn, peaked at 5,582 practising students in January as Hong Kong's mock exams arrived, then stayed high through the spring public-exam season before easing into summer.
Students practising each month
Students with at least one completed practice in the month.
Where students study
Practising students by curriculum this school year.
Senior Secondary (HKDSE)15,352 students
Junior Secondary5,206 students
Primary School1,860 students
Cambridge IGCSE821 students
Cambridge International A Level514 students
489 subjects saw practice in total, from primary school through international A Levels. Mathematics was the year's most practised subject with 367,551 questions, nearly one in five of the total; Chinese Language followed with 318,458.
When students press start
Practice sessions begun by hour of day, Hong Kong time.
Studying on thinka is an evening habit. The peak hour is 9pm, a third of sessions start after 7pm, and nearly one in five starts between 10pm and 2am. Sunday is the busiest day of the week.
The single busiest day of the year was Sunday 4 January 2026, with 1,286 sessions as mock exams loomed. The most prolific student completed 525 practice sessions in a single month.
24,037 of this year's students were new to thinka. 6,356 returned in more than one month, and 2,852 made it part of their routine for three months or longer. Hong Kong's senior secondary students did the heaviest lifting: 15,352 HKDSE candidates practised on thinka this year.
Learning outcomes
The more students practise, the more they improve
Accuracy here counts genuine study only: sessions with at least ten seconds per question and at least half the paper attempted, which is 78.2% of all completed sessions. Measured that way, students answered 64.8% of attempted questions correctly, and the students who practised most improved most.
64.8%
of attempted questions answered correctly
108,408
genuine study sessions measured
+3.9 pts
median gain for power users, first to latest month
64.7%
of power users improved their accuracy
Median accuracy change by practice frequency
Each student's latest scored month compared with their first. Grouped by how often they practised.
64.7%
of power users improved
56.9%
of regular users improved
51.3%
of occasional users improved
The pattern is consistent: heavier practice goes with bigger gains. The median gain rises from +0.7 points for occasional users to +2.3 for weekly regulars and +3.9 for students practising twelve or more times a month, 64.7% of whom improved.
26%
more likely to improve when practising 12+ times a month compared with occasional use. More than one in four power users lifted their accuracy by ten points or more.
How we measured: a session counts as genuine when the student spent at least ten seconds per question and attempted at least half the paper; 108,408 of 138,570 completed sessions qualified, and the rest, mostly abandoned or near-empty papers, are excluded from accuracy figures only. Accuracy is marks earned as a share of marks available on the questions a student answered. The improvement comparison sets each student's latest scored month against their first, both needing at least ten marks available, which 3,920 students met. Across all of them the median change is +1.5 points and 53.6% improved.
Teachers
Teachers turned prep time into teaching time
9,589 teachers and tutors used thinka this school year, and 7,570 of them set work through it. The routine is simple: pick the chapters and difficulty, let thinka draft the paper, review it, then send it to students or print it for class.
34,363
assignments created
861,350
questions set for students
94%
drafted with AI, then teacher reviewed
25,930
submissions marked automatically
Assignments created each month
Teachers keep the same calendar their students do: heaviest before November and March assessments, quiet in summer.
A typical paper runs 18 questions, mixing multiple choice with short and long written answers, drawn from a bank of 622,697 questions. The median draft is ready in 11 seconds. Teachers stay in control: every draft is editable before it reaches a student.
Where students submitted digitally, marking happened on its own. 25,930 submissions came back marked, with feedback on every question, in a median of 14 seconds. Written answers stay editable, so the teacher has the final say.
Roughly 29,000 teacher hours saved
Writing a comparable 18-question paper by hand takes about 45 minutes, and marking a submission about eight. On those assumptions, this year's 34,363 assignments saved around 25,772 hours of paper writing, and automatic marking saved another 3,457 hours. That is about 14 working years of teacher time this school year, spent on teaching instead of paperwork.
The takeaway
What a year of data says about AI in education
Add the year up and the pattern is hard to miss. Students answered 1.4 million questions and got about two in three right. The students who practised most improved most, with a 26% higher chance of gains for those practising twelve or more times a month. Teachers moved roughly 29,000 hours from paperwork back into teaching.
None of it needed new classrooms or a bigger budget. It came from practice that adapts to each student, and from feedback that arrives in seconds from tools still awake at 9pm on a Sunday, which is when much of the real studying happens. Used this way, AI does not replace teachers. It gives each one more reach, and it gives every student with a phone a patient tutor on demand.
thinka is one platform in that shift. This year, 24,510 students and 9,589 teachers used it to make the case. We will publish these numbers every school year.
About the data: figures cover 1 September 2025 to 31 July 2026 and were extracted from thinka's production database on 6 August 2026. Counts are de-duplicated per student. Usage totals count every completed session; accuracy figures use genuine sessions only, excluding 14,865 rushed sessions (under ten seconds a question) and 15,297 papers with under half the questions attempted. Practice time is capped at 100 hours per student per month so sessions left open cannot inflate totals, and records with invalid scores are excluded from accuracy figures. Every number on this page is fixed at publication; nothing is fetched live.