Design Your Developers Can Build

Formuls

392 physics formulas you learn to recall, not just look up

What it had to fix

Physics formula sheets are easy to find and hard to remember. Students reread the same pages before an exam, recognise a formula when they see it and still cannot write it down from memory. Notation adds to the confusion: the same letter means voltage in one textbook and work in another. The founders wanted a product that turns a reference into a daily habit of five to fifteen minutes, works on the phone a student already carries, and stays useful even without a subscription.

How we did it

We built Formuls around one sequence: understand, test yourself, remember. Every formula has its own page with the equation, each symbol and its unit, and every exercise type asks for a little more recall than the last, from recognising an equation among four to restoring it from fragments. Answers feed spaced reviews, so a formula returns just as it starts to fade. The reference and basic practice are free; Plus adds the harder exercises, the learning path and detailed progress.

What changed

• Reference of 392 formulas with symbols, SI units and search by symbol or quantity
• Self-check cards, choose-from-four, rebuilding from fragments and mixed checkpoints
• Spaced reviews and a learning path of 28 topics with progress tracking
• Installable app for iPhone and Android with an offline catalogue
• Formuls Plus subscription with a seven-day trial, in English and Russian

Copilot EGE

Exam prep that follows a route through the gaps, not the whole textbook

What it had to fix

Exam prep usually runs through the full syllabus whether a student needs it or not. A strong student spends weeks on topics they mastered years ago, a weaker one gets lost in topics they cannot start yet, and the tutor learns where a student is stuck only during the lesson, when half of it is already gone. The school also had no fair way to see which teaching worked: a tutor with weaker students always looked worse on raw scores.

How we did it

We built the platform around a knowledge map of 24 exam topics and the links between them. A short diagnostic places every topic as known, shaky, unknown or not yet checked, and the route only includes what is missing, in an order where every topic has its prerequisites in place. The same data feeds three views: a student sees the next step, a tutor sees signals and typical mistakes, and the head of the school sees growth per tutor instead of raw scores.

What changed

• Diagnostic of 25 problems and a personal route through the gaps only
• Knowledge map of 24 topics that keeps checked, inferred and unchecked apart
• Topics in four steps, spaced review, a practice exam and a maths keypad on the phone
• AI assistant that answers from the platform's materials and stays on the subject
• Tutor signals, lesson prep and parent reports, plus a school dashboard with growth per tutor

VNSK WEAR

A streetwear store that never sells a size the warehouse does not have

What it had to fix

A drop-based brand sells out by size, not by product. A hoodie can be gone in M/L while XS/S is still on the shelf, and every order the site takes for a size that is no longer there turns into a refund, an apology and a customer who does not come back. Stock lived in MoySklad, orders arrived through messengers, and the brand needed a store that looked as considered as its photoshoots while knowing, at the moment of the click, exactly what was left.

How we did it

We made MoySklad the single source of truth and built everything else around it. The storefront is quiet on purpose: white studio photography, the brand's italic wordmark and a typewriter face, so the clothes do the talking. Under it, every size carries its own live stock, checkout calculates CDEK delivery for the buyer's own city, and orders land in an admin with statuses, promo codes and managers' access.

What changed

• Catalog, prices and stock by size synced live from MoySklad
• Size-level stock that blocks out-of-stock sizes before they reach the cart
• Checkout with CDEK rates, pickup points on a Yandex map and delivery to 11 countries
• Admin with orders by status, promo codes, managers' access, content and an action log
• Per-product SEO, structured data, a full sitemap and consent-first analytics