PayPal
A mobile payments and wallet app for sending money, shopping, and managing digital transactions.
Why it makes the list
PayPal remains one of the most important trust layers in digital payments, especially for cross-border buyers, freelancers, small merchants, and consumers who want secure checkout.
Purpose and Key Functionalities
Functionalities: send and receive money, online checkout, QR payments, rewards, buy now pay later tracking, and global transfers.
Industry Served
fintech, ecommerce, retail, digital services, and remittances.
Value to Users
it simplifies secure payments and helps individuals and businesses transact internationally with lower friction.
Users and Downloads
PayPal reported 439 million active accounts across about 200 markets as of December 31, 2025; Google Play shows 100M+ downloads.
Technical Specs
Publicly Documented Technology
PayPal provides official mobile SDKs for iOS and Android and documents the use of its Orders REST API with the mobile SDK experience.
Future Opportunity
PayPal is pushing into agentic commerce and AI-enabled checkout experiences, which could extend its value far beyond classic wallet functionality.