10 min. read

Optimizing the iMessage user experience for Gen Z

Optimizing the iMessage user experience for Gen Z

Methods

Competitive analysis

Surveys

Heuristic evaluation

Card Sort

Qualitative usability testing

UXR

Quantitative usability testing

At-a-Glance

I conducted mixed-methods UX research exploring how iMessage can better support Gen Z’s high-volume, dynamic communication patterns.


On a team of three, I implemented quantitative and qualitative research to identify opportunity areas within the Gen Z user-base.


The resulting design improvements were highly effective in alleviating cognitive load, and resulted in an 80% reduction in user effort when filtering messages.

My role
UXR + D

Context
10-weeks, 2025

HCID MS Project

Context

UserTesting

Optimal Workshop

Google Sheets

Figma

Apple’s iMessage is a core staple of the iPhone experience

…but there are new players in the game. The messaging market is more complex than ever

…but there are new players in the game. The messaging market is more complex than ever

I conducted UXR with the guiding question:

How can iMessage evolve to meet the dynamic needs of Gen Z?

Why Gen Z? Because they:

Prefer texting over all communication forms

Prefer texting over all communication forms

Source: Finances Online, 2018

Source: Finances Online, 2018

Are highly active texters

Are highly active texters

Source: Simple Texting, 2024

Source: Simple Texting, 2024

Will easily switch apps for better usability

Will easily switch apps for better usability

Source: Year 13, 2021

Source: Year 13, 2021

Comprehensive research process

To explore Gen Z’s experience through multiple lenses, I conducted comprehensive research in close collaboration with my team

*Additional survey included

By cross-referencing usability issues with industry trends, I identified three high-impact opportunity areas

Personalized organization

Due to their preference for texting, Gen Z opts-in to receive a wide variety of texts, from family to automated alerts

Non-linear communication

Messaging is no longer linear. Gen Z expects to refer and reply to old messages with ease

Multi-media handling

Gen Z communicates with more than just words. They use photos, GIFs, audio, emojis, video and more

Focusing research efforts into these areas led to two key discoveries

Discovery 1

Gen Z suffers from a

Bombarded + unorganized message list

High variety of texts with few ways to organize is overwhelming and stressful for users

Data behind the discovery

In the card sort, users grouped messages with much more nuanced groups than currently avaliable, and simultaneously indicated emotional overwhelm around the mismanagement of their messages. Further testing (Qual and Quant) validated this.

30% have 50+ unread text messages

30% have 50+ unread text messages

46% frequently receive spam

32% agree or strongly agree that they delay responding to texts

32% agree or strongly agree that they delay responding to texts

Source: Surveys sent with Card Sort and Quant 1 & 2

Source: Surveys sent with Card Sort and Quant 1 & 2

The unorganized message inbox stresses people out, and current filters aren’t helping

Current filters

are defaulted off and hidden 10-clicks deep into IOS settings

Filter categories

do not align with how users intuitively group messages

Pre-exisiting UI

So, let's problem-solve. After ideating, my team and I tested the most promising solutions

Discovery 1

Prototyped solution

Customizable Filterbar

The Filterbar

New, direct access to message organization

Click me

All

Groups

Alerts

Spam

Filterbar

I designed horizontal tab filters at the top of the inbox, based on user mental models from the card sort

Starred

Over 2/3 of participants sorted messages as high priority

Hover

All

Groups

Alerts

Spam

Filterbar

I designed horizontal tab filters at the top of the inbox, based on user mental models from the card sort

Starred

Over 2/3 of participants sorted certain messages as high priority

“Things I care about / priority to respond”

I designed horizontal tab filters at the top of the inbox, based on user mental models from the card sort

All

Groups

Alerts

Spam

Click me

Usability improvements

Compared to Benchmark, the Filterbar improved the flow: Finding a group chat

+14%

increase in success rate

-11%

decrease in time on task

-10%

decrease in missclicks

This reduced a 10-step process to just 2 steps

Before: Filtering a message

After: Filtering a message

That's 80% reduction in user effort

Discovery 2

Gen Z has significant

Difficulty finding past messages

Inability to locate past texts frustrates users and forces them to use work arounds to save chat content

The data behind the discovery

There are three ways to locate a past message, but none fully meet user needs

Hover

Chat Details

Global Search

Scroll

Chat Details simplifies finding media, but is far from perfect

It limits media types, does not store text, and offers no user control over what's stored

Inefficient workaround: Users are screenshotting important messages so they don't get lost

Verdict: Users need a way to locate text messages with the same ease they find media in Chat Details

Click me

Chat Details

Global Search

Scroll

Chat Details simplifies finding media, but is far from perfect

It limits media types, does not store text, and offers no user control over what's stored

Discovery 2

Prototyped solutions

In-chat Save and Search

Incorporating message Save and Search features directly within Chat Details eliminated user frustration around message retrieval

Save messages

New feature allows users to save ANY message, including texts

These messages are then avaliable in user’s favorite place: Chat Details

This new feature allows users to save ANY message, including texts

These messages are then avaliable in user’s favorite place: Chat Details

Easily locate a saved message

In-chat search

Search button

Users can now access Search within Chat Details

With this new search feature, users can now access Search within Chat Details

Search filters

Clear search filters reduce need for keyword recall and streamline message location

Clear search filters reduce need for keyword recall and streamline message location

User feedback was overwhelmingly positive

All discoveries and additional research cumalated into a strategic report with final recommendations

The end

Summary of

Recommendations

Recommendations

Click me

Overall

Discovery 1

Discovery 2

To remain relevant, iMessage should support these high-impact opportunity areas

Personalized organization

Provide ways to allow users to personalize the way they filter and sort their messages, and further organize their inbox

Non-linear communication

Continue to develop methods of dynamic and non-linear communication

Multi-media handling

Increase users ability to send and receive multi-media messages

Hover

Overall

Discovery 1

Discovery 2

To remain relevant, iMessage should support these high-impact opportunity areas

Personalized organization

Provide ways to allow users to personalize the way they filter and sort their messages, and further organize their inbox

Non-linear communication

Continue to develop methods of dynamic and non-linear communication

Multi-media handling

Increase users ability to send and receive multi-media messages

With the right strategy, iMessage can reaffirm its place in the messaging market

With the right strategy, iMessage can reaffirm its place in the messaging market

Final Notes

Overall learnings

This project was a great exercise in working on a tight ten-week timeline, but still being able to deliver because of having clear scope and a strong, communicative team.

Reccomendations

While I designed the prototypes to functionally and visually mimic iMessage, to maintain experimental control, participants used simulated chats rather than personal messages. This reduced some of the natural familiarity of personal conversations, but ensured high internal validity.


If I were to continue project I would implement further research with statistically stronger sample-sizes, and more thoroughly investigate the numerous other insights (not mentioned here) that came from the research.

Strategic alignment with Apple's roadmap

In the months proceeding this research, Apple implemented multiple changes that aligned with my focus areas, including increasing personalization of chats, and expanding their multi-media offerings to include additional emoji functions.

Site built by me © 2026 Matea Montanaro. All rights reserved.

Site built by me © 2026 Matea Montanaro. All rights reserved.

Site built by me © 2026 Matea Montanaro. All rights reserved.