Cash App Engineering Blog
We track 22 mobile engineering articles by the Cash App team, published 2019 to 2025. They cover Android, iOS and Kotlin Multiplatform. Cash App writes most about Architecture, Kotlin Coroutines and Build Time.
Cash App by Block (formerly Square) is a mobile payments platform for sending, receiving, and investing money. With over 50 million monthly active users, their mobile engineering team focuses on secure payments infrastructure, Bitcoin integration, and a seamless peer-to-peer experience.
Cash App mobile tech stack & focus areas
Built from the platforms and topics of 22 articles the team published.
- Platforms
-
- Android 16
- iOS 11
- Kotlin Multiplatform 6
- Desktop 3
- Frequent topics
- Publishing since
- 2019 · latest in 2025
- Official blog
- code.cash.app
Most notable Cash App articles
One pick for each topic the team covers most.