
What you do

Tell BadPlastic about your cards: name them, enter last digits of their numbers as a reminder, choose currency

File your statements as they arrive in post, or get them from your attic, in any order you like

For each statement, enter the balance, card limit, payment amount, and percentage rate (monthly or annual)
What the app does

Shows a zoomable timeline of statements, scaled according to card limit

Approximates balances for missing statements so that the timeline appears contiguous

Shows which card is the most expensive by estimating the annual percentage rate, so that you can snowball that card first

Shows percentage of credit used, which may affect your credit score

Estimates number of monthly payments left until the card is paid off, and the card's debt-free date

Summary bar shows total debt, used and available credit, and estimates overall debt-free date.