CODERHOUSE
CODERHOUSE
MOBILE APP
MOBILE APP
Designing the first mobile experience for Coderhouse students and improving product satisfaction after launch.
Designing the first mobile experience for Coderhouse students and improving product satisfaction after launch.
ROLE
ROLE
PRODUCT DESIGNER
PRODUCT DESIGNER
TIMELINE
TIMELINE
2022 - 2023
2022 - 2023
IMPACT
IMPACT
Store ratings
Store ratings
2.2 → 4.5 App Store & Google Play rating
2.2 → 4.5 App Store & Google Play rating
NPS score
NPS score
-74 → +49 NPS score
-74 → +49 NPS score
Usability
Usability
~80% task success rate in usability testing
~80% task success rate in usability testing
ABOUT
ABOUT
Coderhouse is one of the leading online education platforms in Latin America, offering courses in digital skills such as UX design, programming and digital marketing.
I worked on the design of Coderhouse's first mobile app, translating the desktop learning experience into a mobile product for students.
The MVP focused on giving students quick access to their course information and essential learning tools.
Coderhouse is one of the leading online education platforms in Latin America, offering courses in digital skills such as UX design, programming and digital marketing.
I worked on the design of Coderhouse's first mobile app, translating the desktop learning experience into a mobile product for students.
The MVP focused on giving students quick access to their course information and essential learning tools.
The MVP included:
The MVP included:
Class schedule
Class schedule
Challenges and assigments
Challenges and assigments
Course materials
Course materials
Chat with teachers and tutors
Chat with teachers and tutors
Student profile and certificates
Student profile and certificates
CSAT results about the course experience
CSAT results about the chat experience
NPS results
WHAT HAPPENED?
Shortly after launch, product satisfaction metrics started to decline. App ratings dropped from 4.6 to 2.2.
To understand why, I designed a CSAT survey — validated with the Product team and built by Engineering — that collected hundreds of open-ended responses directly in the app. Together with a UX Researcher, we analyzed and categorized the feedback.
Later, when a new PM joined the team, we ran an NPS survey sent to users via email, which gave us a broader read on overall satisfaction. The score reached was -74.
The combination of both inputs shaped our prioritization.
Three main issues emerged:
Shortly after launch, product satisfaction metrics started to decline. App ratings dropped from 4.6 to 2.2.
To understand why, I designed a CSAT survey — validated with the Product team and built by Engineering — that collected hundreds of open-ended responses directly in the app. Together with a UX Researcher, we analyzed and categorized the feedback.
Later, when a new PM joined the team, we ran an NPS survey sent to users via email, which gave us a broader read on overall satisfaction. The score reached was -74.
The combination of both inputs shaped our prioritization.
Three main issues emerged:
Technical instability and loading times
Technical instability and loading times
Missing functionality compared to the desktop platform
Missing functionality compared to the desktop platform
Friction in key student workflows
Friction in key student workflows
WHAT HAPPENED?
In-app survey
In-app survey
WHAT WE DID?
WHAT WE DID?
While Engineering focused on fixing stability issues, I partnered with a UX Researcher and the Product team to prioritize the most critical student workflows. Each solution was designed, prototyped and validated before development.
Based on the feedback analysis, we identified three areas where design could have the most immediate impact:
While Engineering focused on fixing stability issues, I partnered with a UX Researcher and the Product team to prioritize the most critical student workflows. Each solution was designed, prototyped and validated before development.
Based on the feedback analysis, we identified three areas where design could have the most immediate impact:
Assignment submission and tutor feedback
Assignment submission and tutor feedback
Direct messaging between students and tutors
Direct messaging between students and tutors
Top 10 ranking and progress visibility
Top 10 ranking and progress visibility
User insights
User insights
KEY DESIGN DECISIONS
KEY DESIGN DECISIONS
Assignment submission & tutor feedback
Assignment submission
& tutor feedback
Problem
Students struggled to understand how to submit assignments and track tutor feedback.
Solution
We redesigned the flow to simplify submission and make feedback more visible.
Result
Clear submission form
File or link upload
Comment field for context
Full feedback history
Problem
Students struggled to understand how to submit assignments and track tutor feedback.
Solution
We redesigned the flow to simplify submission and make feedback more visible.
Result
Clear submission form
File or link upload
Comment field for context
Full feedback history
Direct messaging
Direct messaging
Problem
The chat feature had low discoverability and unclear interaction patterns.
Solution
We rethought the experience based on familiar messaging patterns.
Result
Floating action button to start conversations
Message history instead of fixed chats
Improved navigation
Problem
The chat feature had low discoverability and unclear interaction patterns.
Solution
We rethought the experience based on familiar messaging patterns.
Result
Floating action button to start conversations
Message history instead of fixed chats
Improved navigation
Top 10 ranking
Top 10 ranking
Problem
The ranking system relied on desktop tables, which didn’t translate well to mobile.
Solution
We designed the experience to fit mobile consumption patterns.
Result
Ranking list instead of tables
Clear points visibility
Access to student profiles
Problem
The ranking system relied on desktop tables, which didn’t translate well to mobile.
Solution
We designed the experience to fit mobile consumption patterns.
Result
Ranking list instead of tables
Clear points visibility
Access to student profiles
BEFORE & AFTER
BEFORE & AFTER
Assignment submission & tutor feedback
Before — single pending list with no submission flow.
After — full submission flow with file upload, status tracking and tutor feedback thread.
Assignment submission
& tutor feedback
Before — single pending list with no submission flow.
After — full submission flow with file upload, status tracking and tutor feedback thread.
Chat redesign
Before — flat list with mixed channels and direct messages, no clear way to start a conversation. After — unified history view, FAB to initiate, improved discoverability.
Chat redesign
Before — flat list with mixed channels and direct messages, no clear way to start a conversation. After — unified history view, FAB to initiate, improved discoverability.
OUTCOMES
OUTCOMES
Within six months, the app ratings recovered from 2.2 to 4.5 on both stores and the NPS moved from -74 to +49 over the following quarters, driven by improvements in stability and the design iterations of the student workflows.
Store reviews from the period reflect the shift: students began describing the app as stable, useful and intuitive — language that wasn't present before the iterations.
Within six months, the app ratings recovered from 2.2 to 4.5 on both stores and the NPS moved from -74 to +49 over the following quarters, driven by improvements in stability and the design iterations of the student workflows.
Store reviews from the period reflect the shift: students began describing the app as stable, useful and intuitive — language that wasn't present before the iterations.