Cash App

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.

22 articles · Android, iOS, Kotlin Multiplatform, Desktop
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Articles from Cash App (22)

Android Nov 18, 2025

Cash Android Moves to Metro

Kotlin Multiplatform Oct 30, 2024

Kotlin Multiplatform parameterized tests with Burst

iOS May 1, 2024

Reducing the Size of Cash App for iOS

iOS / Android Oct 12, 2023

From 30 Minutes Down to 10: Taming our Monolith's CI Build Times

Kotlin Multiplatform / Android / iOS / Desktop Aug 9, 2023

Poko goes multiplatform

Android / iOS / Desktop / Kotlin Multiplatform Jul 12, 2023

Multiplatform image loading: Coil 3.0

Kotlin Multiplatform / Android Jul 5, 2023

Native UI and multiplatform Compose with Redwood

iOS / Android Jun 21, 2023

Flow testing with Turbine

Android / iOS / Kotlin Multiplatform Jun 6, 2023

Kotlin Multiplatform Money Formatter

Android Nov 21, 2022

How We Sped Up Zipline Hot Reload

Android / iOS / Kotlin Multiplatform Nov 10, 2022

Announcing Multiplatform Paging

Android Sep 7, 2022

Molecule: Build a StateFlow stream using Jetpack Compose

Android Nov 11, 2021

The state of managing state (with Compose)

Android Aug 3, 2021

Android Architecture for the Rocketship - Part 1: Modularisation

Android Jun 21, 2021

Sharp Edges in Kotlin Coroutines Testing Tools

iOS Mar 16, 2021

Investigating Crashes with Aardvark

iOS Aug 19, 2020

Wire Support For Swift, Part 1

Android Jun 9, 2020

A Great Way to do Android Presenters

iOS May 20, 2020

Making iOS Accessibility Testing Easy

iOS Jan 23, 2020

Improving Animations on iOS with Stagehand

Android / Desktop Jun 26, 2019

OkHttp 4 Goes Kotlin

Android Feb 5, 2019

OkHttp 3.13 Requires Android 5+