UX Design · Mobile App · Hybrid App

WKDK — IMPROVING UX FLOW OF
SAVING PHOTOS ON HYBRID MOBILE APP

Role Product Designer, Visual Designer, UX Researcher
Duration April 2022 — June 2022
Company WKDK.kr
WKDK — Saving Photos UX hero image

About the Product

What is WKDK?

WKDK (Wokie Dokie) is a Korean mobile app for store management, focused on part-time staff management for restaurants, cafés, convenience stores, retail shops, and franchise businesses.

Task & Checklist

Daily tasks with photo verification.

Shift & Schedule

Organize shifts and coordinate handovers.

Recruitment

Hire workers and onboard via system flow.

Internal Communication

Announcements and chat for store workers.

Outcome

120+

Daily photo verifications post-launch — up ~25% from baseline, measured across the same active user cohort after deployment.

ADT Cap.

Major B2B enterprise client onboarded following the redesign — directly tied to the project's business case.

Redesigning the photo-saving flow reduced friction at the most critical touchpoint in the app — turning a common drop-off moment into a measurable increase in core engagement, and directly enabling enterprise expansion.

Context

01
A Growing App
with an Aging Flow

WKDK is a store management mobile app used by frontline workers — restaurant staff, retail crews, franchise operators — to verify daily tasks via photo records.

As the user base grew and new features were added, the original photo-saving flow stopped matching how workers actually operated on-site. Misuse, confusion, and server errors started surfacing.

Context 01 — aging UX flow

02
B2B Expansion
Was on the Table

Following a Series A investment, WKDK faced pressure to grow the platform user base and demonstrate measurable traction — expanding adoption became a direct business priority.

At this inflection point, ADT Cap., a major B2B enterprise client, entered onboarding discussions. Their adoption would validate the platform at scale, which is what triggered this project. Enterprise clients require reliable, low-friction flows that hold up under real field conditions — any friction in the core loop was now a business risk.

Context 02 — B2B expansion

Problem

" Too long to complete my task in a minute! "

The core issue wasn't a missing feature — it was a disconnect between how the app was designed and how the work actually happened in the field.

We need to attach multiple photos for 1 task.

Multiple-photo verifications accounted for approximately 40% of all task completions — yet the flow was built as if one photo was always enough.

Problem 01 — Multiple photos

But I'm lost while I tried to attach photos.

3–5 VOCs per month reported directly about photo attachment. The bounce rate on the "Select attachment method" screen hit 70% — users were reaching a decision point and abandoning.

Problem 02 — Drop-off in flow

Research & Validation

The hypothesis

The team proposed merging photo editing into the camera screen itself — eliminating the separate editing step that was causing the drop-off. But before shipping, we needed to know: would workers actually accept editing features on a camera interface? It wasn't an obvious leap.

Scenario A wireframe
Scenario A

Take photo → separate editing page → attach. The existing mental model.

Scenario B wireframe
Scenario B

Take photo → edit directly on camera screen → attach. One fewer step.

Testers

6 participants — 4 coworkers not involved with this project + 2 Brwnie crews

*Brwnie: unmanned store management service by the same company — similar frontline user profile

Q1

Which one was the better option for processing tasks easier and faster?

Q1 results
Q2

Did you feel awkward in the flow of B? Which part?

Q2 results
Q3

How do you feel about editing photos on the camera screen — positive or negative?

Q3 results
Q4

Is A's editing page, which appears after the camera, necessary?

Q4 results

What the data said

Scenario B won on every dimension that mattered for field use.

1

All 6 testers found Scenario B faster and easier — no split vote.

2

No one flagged camera-integrated editing as confusing or awkward.

3

Most testers said A's separate editing page felt unnecessary — one extra screen for no reason.

Design Decision

The call

Remove the intermediate editing screen entirely. Move all editing controls — crop, rotate, annotation — into the camera interface itself. One fewer screen means one fewer moment to lose a frontline worker mid-task.

Why this mattered for B2B

Enterprise users like ADT Cap. operatives work under time pressure. Every extra tap is a failure risk. Collapsing the flow wasn't just a UX preference — it was a prerequisite for the B2B use case we were building toward.

Design decision — shortened photo verification flow

Design System Layer

Building for scale, not just this feature

The photo-saving feature redesign ran in parallel with a broader system effort: architecting HDS WEB, the company's design system. Rather than designing this flow as a one-off, every component was built on a token foundation — color, typography, spacing, and component behaviour all defined as reusable variables via Figma Token Studio, synced with GitHub.

Why tokens first

In 2022, Figma had no native token support. We used the Token Studio plugin to connect design variables directly to the codebase. This meant a brand colour change or spacing update could propagate to every screen without manual rework — critical for an app being extended into enterprise contexts with stricter consistency requirements.

Design system — HDS WEB component and token structure

Final Interface

Camera-first, zero interruption

The redesigned flow puts editing controls directly in the camera view — users capture, annotate, and attach without leaving the screen. Multiple photos are handled in a single session. The result is a flow that matches the pace of a real workplace shift.

Final interface — camera with integrated editing
Final interface — complete screens
Final interface — high fidelity screens
Final interface — high fidelity screens detail

Result & Reflection

+25% photo upload rate — core engagement unlocked

Daily photo verifications increased by over 120 on average — a 25% jump. More than a metric, this signalled that users were finally completing the task the app was built around. The feature stopped being a friction point and started being a habit.

Photo uploads before and after

B2B foundation — ADT Cap. secured

The UX improvement directly enabled the ADT Cap. partnership — an enterprise client whose use case required a fast, low-friction verification flow. This opened WKDK to property management and outsourced operations sectors, driving the user growth spike in H2.

ADT Cap. B2B client secured

What this project taught me

The biggest shift was learning to design for operational reality, not ideal conditions. Frontline workers don't have time to think about the UI — the flow has to be invisible. Testing with low-fidelity wireframes before a single final screen was drawn saved us from building the wrong thing confidently. The data validated the direction; the system work made it scalable.