PayAbility

PayAbility aims to empower people with math learning disabilities to compare prices, stay within budget, and pay with exact change.


Our Users

Over 5% of people have disabilities such as nonverbal learning disorder and dyscalculia, rendering them unable to do basic math calculations.

Our Product

PayAbility is an iPhone application that makes paying easier and less stressful by helping users to compare prices, stay within budget, and pay with exact change. Advanced software features such as bar code scanning and optical character recognition make inputting prices a breeze, while animations and pictures help users to visualize money in a clear and engaging way.

Meet the Team

Our team is passionate about creating a more welcoming, socially conscious, and diverse tech industry, in addition to using technology to solve meaningful problems.

Jorge Cueto

Roles: Product Management & Development
jcueto@stanford.edu

Nicole Crawford

Roles: Development & Documentation
nicolecr@stanford.edu

Lynne Sneed

Roles: Design & User Testing
lsneed1@stanford.edu

Musila Munuve

Roles: Design, User Testing, & Videography
mmunuve@stanford.edu

Milestones

Key steps in the design thinking and product development process.

Needfinding

Initial interviews with customers and experts to better understand the learning disability space and determine the scope of the project.

Download the presentation PDF here
or the presentation PPTX here

POVs and Experience Prototypes

Framing 3 key problems as Point of View statements based on our understanding of users and their needs, as well as crafting paper-based "experience prototypes" to develop a better sense of where to focus our project.

Download the presentation PDF here
or the presentation PPTX here

Download the written report here

Concept Video

A video illustrating the context of use for PayAbility.

Download the video here
or watch on YouTube here

Download the presentation PDF here
or the presentation PPTX here

Heuristic Evaluation

An evaluation conducted by 4 reviewers who checked our medium-fidelity prototype for compliance with usability principles ("heuristics").

Download the results here

Prototypes

Concrete representations of our design, in varying levels of detail.

Low-Fidelity Prototyping + Pilot Usability Testing

Results of usability testing on a paper-based low-fidelity prototype were used to determine revisions in the overall design of our product.

Download the presentation PDF here
or the presentation PPTX here

Download the written report here

Interactive Medium-Fidelity Prototype

Interactive prototype created using Sketch and Marvel implementing the feedback from the low-fidelity prototype. This demonstrates how a user would interact with the PayAbility application.

Try the medium-fidelity prototype here
See the README for instructions here

Download the presentation PDF here
or the presentation PPTX here

Interactive High-Fidelity (Hi-Fi) Prototype

Prototype that takes into account all of the previous feedback and implements the PayAbility application so that it feels like a finished product. Running on iPhone.

Try the hi-fi prototype here
See the README for instructions here

Download the presentation PDF here
or the presentation PPTX here

Download the written report here

Poster + Pitch Slide

A visual representation of the purpose of PayAbility and what it offers to users.

View the poster here
View the pitch slide here