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How TRY works inside
Not a chatbot. A marking engine, built from the ground up.
At TRY’s heart is an engine we wrote ourselves. It makes new CAPS questions, knows their answers and their memos, and recognises the mistakes learners actually make, the same way, every time.
245question types
6subjects marked by the engine
1000sof checks per question type
0right answers we’re willing to mark wrong
The engine 
How a question is made.
- 1
Start from the answer
Every question is built backwards from a correct answer, so TRY always knows the answer, and the working that gets there.
- 2
Know the wrong turns
Each question type carries the mistakes learners really make. A wrong answer is matched to a named mistake, not just marked wrong.
- 3
Write the memo
The same steps become the memo: every line, every mark, the way a marker would show it.
- 4
Check it thousands of times
Before a question type goes live, it is generated thousands of times and every one is checked: the answer, the variety, and that every mistake is caught.
Question types per subject
Each type makes endless new questions: new numbers, new diagrams, new wording.
Whole exam papers, with memos
The engine also builds a whole Paper 1 or Paper 2: the right topics, the right mix of easy and hard, the marks adding up exactly, numbered like the real exam, printed as a PDF with its memo.
Fast, and built to scale
A new question in a blink.
The engine doesn’t look questions up. It builds them, with their answers and memos, as fast as learners ask. Each question is worked out on its own, so serving more learners is simply a matter of running more copies.
16,000+new questions a second, on one laptop core
0.06 msto build a question, its answer and its memo
98,000questions built and checked in the benchmark
Measured with every question type in all 6 subjects, on an everyday laptop. A server is faster.
Learns from every try
Practice that gets more personal.
1
Every mistake has a name
A wrong answer isn’t just wrong. The engine says which mistake it was.
2
Your weak spots, remembered
After a test, one tap makes a new one on exactly the mistakes you made.
3
Marks become a plan
Term marks become an APS, the APS becomes the courses you meet, and the courses become closing dates.
Safety, built in
Made for young people, from the start.
Learners first
Learners are kept apart from unknown adults. Anyone can be blocked, muted or reported, and reported posts are reviewed.
An AI with guard rails
Aton answers from TRY’s own facts, keeps to schoolwork and the future, says it’s an AI, and points to help lines when a learner needs help.
Private by default
We collect only what TRY needs, never sell it, and show no adverts based on it.
Principles
The rules we build by.
Never mark a right answer wrong
The worst thing a marker can do. When TRY isn’t sure, it says so instead of guessing.
The same answer every time
A question can be made again exactly, and any verdict can be checked again later.
Built for the phone in her hand
Everyday Android phones, expensive data and patchy signal. Offline is a feature, not an extra.
Aton
An AI that uses TRY’s facts, not its imagination.
Aton understands a learner’s words and hands her TRY’s own things: a paper, a test, a bursary, a closing date. It reaches TRY’s data through a locked door, only for that learner, and it never sees a question’s answer or memo.
- The words are the AI’s; the facts are TRY’s
- The same rules and limits as the app
- It says it’s an AI, and that it can make mistakes
Coming soon
TRY’s engine, for your school or platform.
Schools, teachers, publishers and learning platforms: make CAPS tests and whole exam papers, with memos and marking, inside your own systems, powered by TRY’s engine.
Talk to us about early access Work with us
Want to see it working?
Investors, judges, partners and engineers: we’re happy to show you TRY in action.
Talk to us