Case Study — UX Strategy & Growth Design

Designing habits for
1M+ language learners.

How ZabanShenas evolved from a fragmented learning tool into a frictionless, motivating, cross-platform experience — and how design decisions moved real engagement and completion numbers.

Role
Senior Product Designer
Timeline
2020 – 2022
Domain
EdTech / Language Learning
Scope
Android · iOS · Web
01 — Overview

One learning ecosystem, three platforms, one million learners.

I led the redesign of a language-learning ecosystem serving more than one million users, with a focus on scalability, engagement, and cross-platform consistency across Android, iOS, and Web. The work spanned everything from first-open onboarding to the daily habits that keep a self-paced learner coming back.

A single learning experience, expressed consistently across Android, iOS, and Web — interactive lessons, spaced-repetition flashcards, statistics, and community, all reachable from one active home screen.
Impact at a Glance

Numbers that moved because the experience changed.

1M+
Active learners
+18%
Daily engagement
+14%
Course completion
-22%
Onboarding drop-off
02 — The Problem

A content repository, not a learning habit.

Three distinct issues stood between ZabanShenas and the kind of daily habit that self-paced learning depends on. The product had the content learners needed — what it lacked was a path that kept them coming back for it.

Fragmentation

Cross-Platform UX

Inconsistent UX across Android, iOS, and Web meant learners relearned the interface every time they switched devices.

Drop-offs

Onboarding

High abandonment during the initial user journey — most learners never got far enough to feel their first win.

Engagement

Long-Term Motivation

Self-paced learning had no built-in reason to return tomorrow — without a coach or classmate, motivation faded fast after the novelty wore off.

The "Why" — Research & Data

Decisions grounded in who was learning, and where they fell off.

Before redesigning anything, the work started with understanding who was actually using the product, and mapping exactly where the experience lost them.

🎓

The Student

Persona

Learning for exams or academic requirements. Time-rich, motivated by visible progress and short-term goals.

💼

The Professional

Persona

Learning around a full-time job. Time-poor, needs sessions that fit into five-minute gaps without losing momentum.

🧒

The Young Learner

Persona

Learning with parental encouragement. Needs playful feedback and a low tolerance for friction or confusion.

User Journey — Where Learners Dropped Off
Discover
🙂
Downloads the app, curious and motivated
Sign Up
😕
Long form, unclear value before commitment
First Lesson
😣
No placement test — content feels mismatched
Day 2
😐
No reminder, no reason to return
Day 7
😞
Churn — habit never formed
The two highlighted stages — sign-up and the first lesson — accounted for the majority of early drop-off, and became the focus of the onboarding redesign.
03 — Onboarding Re-Engineering

Simplifying the path to the first "Aha!" moment.

Reducing friction: a personalized onboarding flow — including a placement test and goal-setting step — increased user activation and cut early drop-off by 22%.

Before
Create account required
Long registration form 8 fields
Generic course list no guidance
Lesson 1, Unit 1 same for everyone
After
Goal setting why are you learning?
Placement test 2 minutes
Personalized path matched to level
Account creation deferred, optional
04 — Gamification Framework

Building habits: the motivation engine.

Behavioral science triggers — streaks, XP, and visible progress — were integrated into a closed loop designed to make daily practice feel rewarding rather than obligatory.

🎯
Daily Goal

A small, achievable commitment set at onboarding

🔥
Streak

Visible continuity that creates a reason not to break the chain

XP / Points

Immediate reward for every completed action

🏆
Leaderboard

Light social competition that reinforces return visits

This loop runs continuously: a completed Daily Goal extends the Streak, which awards XP, which moves the learner's position on the Leaderboard — closing back into tomorrow's goal.

"I didn't just design screens — I designed a habit-forming system."

— Mobin M. Bahrami, Senior Product Designer
05 — Core Learning Experience

Where users spend the most time, designed first.

A close-up on the Lesson Player — the single screen where most learning time is actually spent. Every word is tappable, every control built for a learner who needs to slow down, repeat, or look something up without losing their place.

The quick brown fox jumps over the lazy dog
+ Add to Leitner 0.75× Speed Show Translation
Hover any word above — in the live product, tapping a word triggers an instant definition, adds it to a spaced-repetition flashcard deck (Leitner system), and lets the learner adjust audio speed or reveal a translation without leaving the lesson.
06 — Unified Design System

One component, three screen sizes, one brand.

Efficiency at scale: a unified design system — built on Atomic Design principles and design tokens — accelerated development velocity by 2× and kept the brand consistent everywhere a learner might open the app.

The same lesson card component, scaled for Android, iOS, and Web — same tokens, same interaction logic, different canvas.
07 — Results

Data-driven success, measured after launch.

Significant improvements in engagement and course completion followed iterative design and testing — not a single redesign, but a sequence of measured changes, each validated against real usage data.

Daily Engagement
Course Completion
-22%
Reduction in onboarding drop-off
+18%
Increase in daily engagement
+14%
Improvement in course completion
40+
Features designed & launched
Conclusion

From content repository to motivating ecosystem.

ZabanShenas transformed from a content repository into a motivating learning ecosystem — proof that user-centered design directly drives business growth in EdTech. The redesign wasn't about making things prettier; it was about understanding why a self-paced learner stops coming back, and removing every reason for that to happen.

"User-centered design directly drives business growth in the EdTech sector."

— Mobin M. Bahrami

see more of my

WORK