Candle
Candle is a commuter app that helps you work and relax on your train journey. Candle switches between modes like Focus, Relaxation, Mindfulness, and Entertainment based on real-time factors like noise levels and crowd density.
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You can explore the detailed outcomes of the project, including research methods and interface designs below.​​
Client
Academia
Year
2024
Project Type
UX/UI Design
Type of Work
Research
Prototyping
Testing
Design
The app automatically shifts between Focus, Relaxation, Mindfulness, and Entertainment modes, based on factors such as noise levels, crowd density, and the user’s current activity. These modes are designed to help users either stay productive with task management tools or unwind with guided relaxation techniques and mindfulness exercises. Additionally, Candle integrates a screen lock feature to limit smartphone usage after 10 minutes of the journey, encouraging users to engage more deeply with their commute or tasks while still providing essential information like mode updates and the next station.
Candle was developed through a Research through Design (RtD) process, where real-world testing and iterative design were used to refine the app based on user feedback. The app is rooted in cognitive load theory, nudge theory, and attention restoration theory, ensuring that every feature is designed with both focus and relaxation in mind.
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01
Research
To ensure the app meets real commuter needs, I used a mix of research methods, including diary studies, interviews, and questionnaires. Eight train commuters traveling between Siegen and Cologne participated in a 5-day diary study, recording their daily experiences in detail. This was followed by three validation interviews to confirm and expand on the findings. Additionally, 15 long-distance commuters (traveling at least 1.5 hours twice a week) provided further insights into their overall travel experiences.
Diary Study
I designed a detailed diary study booklet with multiple pages. The booklet included sections for commuters to record their activities, mood, and any notable incidents they encountered during their journey. 8 commuters who travel regularly between Siegen and Köln were selected. Each participant documented their daily travel experiences over a period of 5 days
Validation Interviews
3 in-depth interviews were conducted with selected diary study participants to validate and deepen our understanding of the diary findings.
Questionnaire
15 additional commuters who travel at least 1.5 hours twice a week provided supplementary data through an online questionnaire.
02
Insights
Diary Study
The diary entries revealed a strong reliance on digital media (e.g., music and podcasts) as a means to manage stress and pass the time productively. However, distractions from noise and crowded environments frequently hindered their ability to focus.
Validation Interviews
Users expressed a desire for a dynamic solution that could switch between productivity and relaxation modes depending on the context of the commute (e.g., delays or quiet sections).
Questionnaire
80% of respondents indicated they would welcome an app that helps them transition between work and relaxation during commutes, and 75% mentioned that real-time updates about train conditions (e.g., crowd density) would improve their overall experience.
03
Design Concept
Focus Mode:
Designed for those who want to maximize productivity during the commute. This mode offers focus-enhancing features such as task reminders, concentration music, and guidance to quieter sections of the train.
Mindfulness Mode:
Activated during delays or other stressful conditions, this mode guides users through short breathing exercises or meditation techniques to reduce stress and maintain a calm state of mind.
Relaxation Mode:
When the train passes through scenic areas or when external conditions are not ideal for productivity, the app suggests switching to Relaxation Mode. Calming music and prompts for mindfulness exercises allow users to recharge.
Entertainment Mode:
Offers light entertainment options such as podcasts, music, or short stories to help users pass the time during the final parts of their journey.
04
Prototype
Testing
Testing Approach
Since the app was not fully developed at the time of testing, a manual testing approach was used. This involved guiding users through the app’s features via direct notifications and interactions, simulating how the app would function in real-time.
Participants:
2 commuters who regularly travel between Köln and Düsseldorf.
Method:
Participants were exposed to various commuting conditions (noise, crowd density, journey length), and manual prompts were sent at appropriate times to simulate mode-switching.
Feedback
Focus Mode: Users liked being guided to quieter sections and having music for concentration, but found the transitions too rigid. They want more control over switching modes.
Relaxation Mode: Scenic prompts were effective in boosting mood and awareness. Adding visual elements could further enhance this experience.
Mindfulness Mode: Guided breathing helped manage stress during short delays, but users felt that longer delays needed a wider variety of mindfulness activities to better address stress and boredom.
Entertainment Mode: Professionally related content was appreciated during the final parts of the journey, but users desired more diverse and light-hearted options to keep them engaged.
05
UI Design
The final UI design of the Candle app focuses on creating an intuitive and visually appealing experience that seamlessly supports commuters throughout their journey. The dark theme to emphasize the Candle app’s core concept of “enlightening the journey.” This design choice symbolizes how the app serves as a guiding light, helping users find focus, relaxation, or mindfulness amidst the daily commute.
Home Screen: Provides an overview of the commute and allows users to easily switch between modes—Focus, Relaxation, Mindfulness, or Entertainment—based on their preferences or real-time suggestions.
Journey Screen: Shows real-time data on noise levels and crowd density, helping users identify quieter sections and less crowded areas to enhance focus or relaxation.
Task Management Screen: Suggests activities tailored to each mode, supporting productivity or relaxation goals.
Home
The Home Screen offers a quick overview of the commute. It shows the current mode (Focus, Relaxation, Mindfulness, or Entertainment) and provides task progress.
Journey
This screen provides real-time updates about the train, including the current carriage designation (e.g., Focus or Standard Zone), noise levels, and crowd density. Commuters can see the estimated journey duration, and delay information.
Lock
Screen
Once the Candle app is activated, the user’s phone will automatically lock 10 minutes after their journey begins. On the lock screen, users can view essential information such as the current mode (e.g., Focus, Relaxation) and the next station. Users can tap 'Ignore Limit' to unlock their phone. This feature reduces screen time and encourages users to engage with their commute in a more productive or relaxing way.
