tolu.

Work / Deckr

Deckr

An AI study platform that turns notes, PDFs and textbook photos into flashcards and quizzes. I founded it, designed it and built it on my own.

Role
Founder, designer, engineer
Type
Web app
Stack
Next.js, Supabase, Paystack
Status
Live at deckr.com.ng
Deckr / Landing
Deckr landing page: turn your notes into flashcards instantly

The problem

Students preparing for WAEC, JAMB and university exams have more notes than time. Turning those notes into something you can actually revise from, like flashcards, takes hours most students don't have.

Deckr does that step for them. Paste text, upload a PDF or snap a page of a textbook, and it gives back flashcards and quizzes in seconds.

How it works

Three steps, built so a student can go from notes to studying in under a minute.

About 15 seconds

Add notes

Paste text, upload a PDF or document, or take a photo of a textbook page.

About 20 seconds

Generate cards

The AI pulls out key concepts and writes question and answer cards.

Every day

Study and quiz

Review cards and take quizzes. Smart Review brings back the cards you're about to forget.

What's inside

Four features carry the product. Each one was designed in Figma and then built and shipped by me.

Deckr / Upload
Deckr new flashcard screen: upload an image, PDF, Word or PowerPoint, or paste notes

Flashcards from anything

Text, PDFs, slides, photos and handwritten notes all become cards.

Deckr / Quiz
Deckr quiz: a multiple-choice question with the correct answer highlighted

Smart quiz mode

Quizzes with several question types that get harder as you improve.

Deckr / AI tutor
Deckr AI tutor explaining the current flashcard beside the study view

AI tutor

Ask follow-up questions about any card and get an explanation straight away.

Deckr / Smart Review
Deckr study options: Full Study or Smart Review, which shows only the cards due today

Spaced repetition

Spaced repetition brings each card back just before students forget it.

Designed and built by one person

No handoff, no gap between the design and what shipped. The same person made both.

Design

  • Brand, landing page and product UI
  • Upload, study, quiz and tutor flows
  • Pricing and onboarding

Build

  • Next.js front end
  • Supabase for accounts and data
  • Paystack for payments

Results so far

400+

Students using Deckr

12,000+

Flashcards created

“I love how it can turn my notes into AI flashcards and quizzes. Overall, Deckr makes studying more interactive, organised, and less stressful. Would definitely recommend to others.”

Popoola Julius, Software Engineering 100L, OAU

Have something to build?

I take on product design and build projects for founders and teams anywhere. Tell me what you're making.

adesodun67@gmail.com