About this app
In school we learned about coins and bills, but this is a plastic card! Where’s the money? Where does it come from? How do I know how much I have? Transaction Trainer is a tool designed to help demystify the Card! Explore the intricacies of using a debit card to make purchases at a wide selection of example storefronts; practice the use of both chip-enabled or swipe only point of sale terminals; learn what buttons are important and which you can safely ignore; and take a peek behind the curtain by keeping track of your purchases in a virtual ledger. Transaction Trainer is a research-based app that will help make concrete the abstract world of the Card.
Latest release
What’s New
Updated with security improvements!
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Sep 16, 2026 · 3:36 PM $1.99
Screenshots
