Yi-Ju

Weng

About Me

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Yi-Ju

Weng

About Me

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ETF Choice App

Design Iteration

How I optimized the app design based on UX research insights, increasing weekly active users by 52.9%.

Project Type

Work (CMoney Technology)

Credits

UX/UI Design / Yi-Ju Weng (me)
PO & Supervisor / Jimmy Liao
PM / Anita Lin
UX Researcher / Yen-Chun Lai
iOS Dev / Wei-Zhong Chen
AOS Dev / Jun-Yang Lin

Project Background

Background

“ETF Choice” is an all-in-one app for buy-and-hold ETF investors, from finding potential targets and keeping track of their stocks to sharing their progress with the community.

The Product Team's Objective

Continually optimize ETF’s data and user experience to become the #1 go-to app for buy-and-hold ETF investors.

Key Result

Weekly Active Users

52.9%

Weekly Downloads

45.0%

Design Process

In addition to designing interfaces independently, I facilitated the UX researcher in conducting usability testing and two in-app surveys to understand user needs and areas for improvement in the current design.



Together, we discussed how users can complete task scenarios during the usability testing and brainstormed on questions to ask during the interview session. I also created interactive prototypes for users to interact with during the testing.

We used FigJam to draft the survey questions and communicate our thoughts.

Research Methods

Through usability testing, in-app surveys, feedback forms, and app store reviews, we gathered insights that guided improvements to make the app more usable and intuitive for our users.

Direct Feedback

App Store Reviews

In-App Feedback Form

(ETF Choice)

Qualitative Research

Usability Testing

Quantitative Research

In-app Survey

(ETF Choice)

In-app Survey

(Other Investment Apps)

Research Insights

01

Offering desired fields for different ETF categories will be more intuitive.

Originally, the page was divided into “Recent Performance” and “Basic Information” using tabs. However, users interested in market-cap ETFs want to see recent performance, while those focused on high-dividend ETFs look for yield and basic information. Using tabs not only risks being overlooked by users but also makes the information less intuitive.

easily overlooked,
less intuitive

easily overlooked,
less intuitive

easily overlooked,
less intuitive

02

Users need more advanced information to make decisions.

Information like historical ex-dividend dates, net asset value, premiums/discounts, custodian banks, and number of beneficiaries are key factors for users when analyzing ETFs.

advanced information needed

advanced information needed

advanced information needed

03

The original focus on calculator functions doesn’t encourage users to return frequently.

more like one-time function

more like one-time function

more like one-time function

04

The characteristics of an ETF's holdings can't be inferred from its name.

not understandable

not understandable

not understandable

Designing the Details

01

Research Insights

Based on the research insights, we added advanced information investors needed when exploring new ETFs and making buy or sell decisions.

Based on the research insights, we added advanced information investors needed when exploring new ETFs and making buy or sell decisions.

Based on the research insights, we added advanced information investors needed when exploring new ETFs and making buy or sell decisions.

Quantitative Analysis / Yen-chun Lai, UXR

Quantitative Analysis / Yen-chun Lai, UXR

Quantitative Analysis / Yen-chun Lai, UXR

02

Wireframe

03

Final UI

Final Outcome

Track your ETF Choice

Track your ETF Choice

Get a comprehensive view of price, returns, and dividends all at once.

Get a comprehensive view of price, returns, and dividends all at once.

What’s popular?

3

00940

元大台灣價值高息

994,950

+286,582

2

0056

元大高股息

1,062,259

+42,105

4

00940

元大台灣價值高息

708,368

-

1

00878

國泰永續高股息

1,248,128

+19,183

Shareholder Ranking

ETF Characteristics

ETF精選口袋名單

排行榜

市值

高股息

主題

國際

債券

全部

今日熱門

資產規模

持股人數

殖利率

年化報酬

排行

股票

年殖利率

年化報酬

1

00900

富邦特選高股息30

13.11%

(季配)

11.4%

(成立2.3年)

2

00770

國泰北美科技

9.33%

(年配)

23.1%

(成立5.2年)

3

00882

中信中國高股息

8.95%

(半年配)

-5.1%

(成立3.2年)

4

00940

永豐美國500大

8.56%

(月配)

成立未滿1年

5

0052

富邦科技

8.46%

(月配)

12.6%

(成立18年)

6

00690

兆豐藍籌30

8.30%

(季配)

13.1%

(成立7年)

7

00712

復華富時不動產

8.27%

(季配)

-3.2%

(成立6.6年)

Highest Dividends?

Dividends Ranking

ETF精選口袋名單

排行榜

市值

高股息

主題

國際

債券

全部

今日熱門

資產規模

持股人數

殖利率

年化報酬

排行

股票

年殖利率

年化報酬

1

00900

富邦特選高股息30

13.11%

(季配)

11.4%

(成立2.3年)

2

00770

國泰北美科技

9.33%

(年配)

23.1%

(成立5.2年)

3

00882

中信中國高股息

8.95%

(半年配)

-5.1%

(成立3.2年)

4

00940

永豐美國500大

8.56%

(月配)

成立未滿1年

5

0052

富邦科技

8.46%

(月配)

12.6%

(成立18年)

6

00690

兆豐藍籌30

8.30%

(季配)

13.1%

(成立7年)

7

00712

復華富時不動產

8.27%

(季配)

-3.2%

(成立6.6年)

Highest Dividends?

Dividends Ranking

Dividend Statistics

ETF Characteristics

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© 2026 Yi-Ju Weng

© 2026 Yi-Ju Weng

© 2026 Yi-Ju Weng

Project Type

Work (CMoney Technology)

Credits

UX/UI Design / Yi-Ju Weng (me)
PO & Supervisor / Jimmy Liao
PM / Anita Lin
UX Researcher / Yen-Chun Lai
iOS Dev / Wei-Zhong Chen
AOS Dev / Jun-Yang Lin

Download App

ETF Choice App

Design Iteration

How I optimized the app design based on UX research insights, increasing weekly active users by 52.9%.