Mandarin / Mebelis

What I built

• The full expression stays hidden during the exercise and is revealed after submission with the correct result.
• Configurable 2–10 numbers per exercise, 1–50 exercises per session, and display speed from 5 to 0.1 seconds.
• Methodology blocks cover units, tens, two-digit numbers, numbers up to 999, and formulas around 5 and 10.
• Final screen with exercise count, correct answers, errors, and percentage, plus repeat and new-session actions.
• Responsive branded UI for mobile and laptop, methodology checks, and production launch.

Outcome

The first stage was accepted by the client without remarks and runs in production.

More in Education

Own product

AGAI

Built the product end-to-end: learning, tests, AI problem solving, progress, subscriptions, analytics, and an organic acquisition system. Web and iOS are public; the Android version is in closed testing.

Read the case

Freelance client

Nomad Study Hub

Designed and launched a production computer-based IELTS mock-exam platform for an education center. It is not an LMS: the system covers exam delivery, grading, teacher review, parent reporting, and content-bank operations.

Read the case

Client product

OK Bolashak

Designed and launched a production UNT diagnostic platform—from RU/KZ onboarding and subject selection to a 0–140 forecast, weak-topic analysis, and a personal study plan. Managers receive the full student context through an internal funnel and Bitrix24.

Read the case