1. The document compares Paymill and Stripe payment processing services. It details the author's experience using each platform and identifies some issues they encountered with Paymill.
2. While Paymill and Stripe work similarly, the author decided to switch to Stripe due to a number of small problems with Paymill that added up, including unsupported cards, errors not being addressed, and difficulties testing transactions.
3. Both platforms have similar features for accepting payments online or via mobile apps. However, the author concludes Stripe has better customer focus and slightly lower costs, making it the better overall choice compared to Paymill.
11. Not all cards available to us
Cards supported > cards supported in our account
Test OK, live FAIL
Out of date documentation? No help for four days
Error in API
Error case, probably ignored by most people
Unable to debug error
Called the bank directly
Difficult to test transactions live
Blacklisted cards
Name shown on card statements
Martin Cabrera → Marsin Gabrera Diatb → Codekai
PCI documentation
Endlosschleife
60. 30% more test cases
Validations, error-handling
Data model
Minimum: customers, products, orders
Design
Payment form, A/B test conversion, email design and copy, convey confidence
Terms of use
Money back guarantee, trial periods or free plans, how to handle returns
Pricing
Good references: “Don’t Just Roll the Dice” and “Camels and Rubber Duckies”
Administration screens
For customers to view payments and download invoices, change cards
Other stuff
Taxes, phone support