TCAS Preparation, With Unlimited AI Questions
Covering elementary, lower secondary and upper secondary, through TCAS preparation. AI generates unlimited exam-style questions and grades them instantly with an explanation for each one, so you always know what to fix.
Solve 2x² − 5x − 3 = 0.
Your factorization was right, but the answer is incomplete: you dropped the negative root, x = −½. We've added two similar questions to your queue.
Every Stage of the Thai Curriculum
From elementary exercises through lower and upper secondary papers to TCAS preparation. Choose your curriculum to start practicing by subject and topic.
At an international school?
thinka also covers IB, IGCSE and International A-Level programs.
Built for Thai Exam Preparation
Real question formats, instant grading, and the exact step where the points went.
Questions in the Real Exam Format
AI generates multiple-choice, short-answer and long-answer questions modeled on real exam formats, so the phrasing on exam day feels familiar.
Know Immediately Where You Lost Points
Instant grading points to the step you missed and explains the fix. thinka records each weak topic for you.
One Account, Elementary Through TCAS
Start with elementary foundations, continue through lower and upper secondary, and finish with university entrance preparation. Your learning record carries across every stage.
How It Works
Pick a topic, practice in the real exam format, then see the step you missed. One round, three steps.

Choose Your Topic
Choose elementary, lower secondary, upper secondary or TCAS preparation, then narrow to a subject and topic and set the difficulty.

Practice with AI
Answer multiple-choice and written questions in real exam format, with a new set generated every time, so nothing gets memorized.

Get Instant Feedback
Grading works through your answer step by step and records weak topics, so the next round starts where the real problem is.
Practice by Subject
Practice the subjects the real exams measure, from math and science to English. Tap a subject to start.
TCAS
Upper Secondary
Lower Secondary
Primary (Thailand)

Free Study Resources
What Learners Say
“I practice math for half an hour a day before exams. When I get one wrong the system tells me which step I missed, so I know what to go back and review.”
“My child is in Primary 5 and I can't really teach math myself. The app sets the questions and grades them, and we just go through the explanations together.”
Frequently Asked Questions
Last updated August 2026
How does thinka help with TCAS preparation?
Choose the subject and topic you want, then practice unlimited exam-style questions. Grading is instant and weak topics are recorded, so your study time goes to what actually needs it.
Are there A-Level (TCAS) style questions?
AI generates unlimited new questions based on real exam formats, but the official past papers themselves are not included. It suits extra practice once you have worked through the real papers.
Can lower secondary and elementary students use it?
Yes. Both are their own curriculum, with questions organized by grade and topic and adjustable difficulty. Parents can follow progress from their own dashboard.
Is thinka free?
A free account includes a set number of questions each day, with no credit card required. Upgrade for unlimited practice whenever you like, and cancel at any time.
Can AI grade written answers?
Yes. Grading follows the structure of the scoring criteria, identifying which parts earned points and which are missing, and describing what a fuller answer would include.
Which subjects are covered?
Core subjects including math, science, English and Thai. Coverage varies by stage, so open the curricula above to see the full subject list.
Ready for Your Next Exam?
Join 100,000+ learners drilling their weak topics with instant feedback. From elementary through TCAS, start free today.
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