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Walleta, a concept design for an automated expense and budget tracking smartphone app aimed at 18-29 year old young adults, using nudge theory and peer comparison to encourage saving.
tech
Why a nudge system:Young adults mostly have the ability to save, but often lack the sustained motivation that makes long term savings happenVisual presentation helps the user to be more engaged and displays information effectively and efficientlyThe automated and immediate feedback system provides the constant reminder that bridges the gap between will and actionMotivation for the individual:Internal – one’s desire to save up money, either for future personal use or toward a specific goalExternal – reminder of repeat purchase, comparison with peers of similar age that establishes a competitive interestMotivation for the app developer:Data cloud collect shopping trends for individuals, this information can be aggregated (to ensure anonymity), and be provided to third partiesParticularly valuable information can be derived from learning about the type of shoppers: lots of purchase at a few vendors, or smaller purchase at more vendors?Macro data on how young adults are faring in their financial statusSources: BJ Fogg“Three Days Rule”
Spending/ Savings StatsMillennials Savings TrendWalleta is an automated expense & budget tracking smartphone app primariily designed for 18 – 29 year old young adults. This group of individuals tend to have the most potential to save money but who also spend impulsively and are less financially literate. We seek to make spending more conscious and purposeful.
Desirability is defined here as providing insights on spending habits previously absent and on whether someone is keeping up with their peers. Operationalize is defined here as an automated, immediate feedback system that makes user more aware of subconscious, routine behavior. We use visual presentation that analyzes spending trend and does comparative analysis for the users.
The current issues in the failure to save money are:
App Set-Up: Walleta collects data from user’s previous bank statements, but individual goals can also be manually input to allow for flexibility. It separates spendings into major categories, and calculates the monthly disposable income for the user. Then, it provides guidance on setting up a monthly savings goal.

Notification Screens – Different colors indicate different savings statuses:

When you slide the notification as pictured above, your phone will direct you to view more details in the app (see below). Note that users can view details on what they spent their money on by tapping the “disposable income spent” portion of the pie chart (in dark green).

Why a nudge system:
Motivation for the individual:
Motivation for the app developer:
Sources: BJ Fogg