iyzico "İşim İçin" - Mobile App Redesign

In this project, I managed the end-to-end redesign of İşim İçin, iyzico's mobile application for SMEs and micro businesses.

The goal was to simplify the experience that had become complex with an increasing product and feature set, enabling merchants to manage their daily business on mobile faster, more securely, and more clearly.

Problem Definition

Over time, the İşim İçin app became a structure that: - Had new features added - Served different merchant segments - But had an outdated information architecture and main flow

This situation led to: - Increased cognitive load on the home screen - Critical actions (payment link creation, transaction tracking, payouts) becoming secondary - Users unable to predict "where to do what"

Goals

- Reconstruct the mobile experience according to merchants' daily workflows - Simplify the home screen to make critical actions visible - Create a flexible structure suitable for different merchant profiles - Increase sense of trust and control on mobile - Build a scalable UX infrastructure for future features

Process & Approach (End-to-End)

1. Problem Discovery & User Research

At the project's start, I conducted user interviews: - With merchants of different sizes - According to active/passive usage levels - Comparing mobile and panel usage habits

Key Insights: - Merchants want quick control on mobile - Rather than detailed analysis, they seek answers to "what's happening now?" - Most frequent actions: - Creating payment links - Current status check - Transaction and payout tracking - Mobile app was perceived as a small copy of the panel; whereas the expectation was a complementary and quick tool.

2. Information Architecture & Flow Decisions

After research, reviewing existing flows, I focused on: - Which information is truly "home screen-worthy"? - Which are secondary? - Which actions should be one-touch on mobile?

At this stage, I: - Produced different home screen concepts - Evaluated widget-based and action-oriented alternatives - Conducted pros/cons analyses with PM and teams

3. Design Process (Wireframe → UI)

Following the selected concept: - Structure was clarified with low-fi wireframes - Critical scenarios were tested on prototype - UIs were designed in alignment with iyzico's design system

Main design focus: Merchant reaching needed information within the first 10 seconds of opening the app.

Solution

Reconstructed Home Screen

- Current status summaries (successful transactions, refunds, pending actions) - Quick access for most used actions - Modular structure reducing information density

Clear Action Hierarchy

- Payment collection (link / QR) in foreground - Transaction and payout details easily accessible - Settings and secondary areas moved to background

Consistent Navigation

- Clear tab structure reducing feeling of being lost on mobile - Similar functions gathered under one roof

Results & Impact

- ✓ Access time to main actions within the app shortened - ✓ User comprehension time of home screen reduced - ✓ Mobile app's "auxiliary tool" perception strengthened - ✓ More flexible UX infrastructure created for new features

Learnings & Personal Contribution

- I managed this project end-to-end from research to UI - I clearly saw how critical "right feature visibility" is instead of "more features" in mobile products - I experienced the importance of balancing different user segments in a single mobile experience

My biggest takeaway: In mobile experience, success is determined not by how much you offer, but by what you offer, when.

Impact Summary

✓ Mobile home screen redesigned ✓ Critical actions simplified ✓ Information architecture made scalable