LIMTR
Design Research, User Study
2023
Summary
This study examined how physical budget visualization tools influence mobile spending behavior compared to digital solutions. We developed LIMITR, a tangible budgeting device attached to smartphones, to investigate whether physical interaction enhances budget awareness and reduces impulsive spending.
Methods:
Participant Selection: Four adults who regularly used mobile payments and actively budgeted were recruited.
Data Collection:
Diary Studies: Participants recorded spending sessions over 14 days, noting emotions, location, and adjustments to their budget.
Semi-Structured Interviews: Post-study interviews explored deeper insights into their experiences with LIMITR.
Mixed-Method Analysis: Qualitative data (diary entries, interview transcripts) was coded and thematically analyzed to identify behavioral patterns and emotional responses.
Key Findings
Negative Reinforcement: Overspending triggered guilt and regret, which some participants found motivating for future restraint.
Tangibility Advantage: The physical presence of LIMITR improved budget awareness more than digital apps, as it was constantly visible and tactile.
Playful Distraction: The slider mechanism invited fidgeting, which occasionally diverted focus from budgeting but also increased engagement.
Social Influence: The device’s visibility sparked conversations about spending habits, adding an unexpected social accountability layer.
Implications:
The study suggests that tangible tools like LIMITR can enhance financial mindfulness by merging physical interaction with emotional feedback. Future designs could refine usability (e.g., securing sliders) and explore ethical considerations around negative reinforcement.
