Square

Square (now Block) builds financial tools for businesses including point-of-sale, invoicing, and business banking. Their mobile engineering teams build seller-facing apps and payment SDKs, with notable contributions to Kotlin Multiplatform and open-source libraries like Workflow and Okio.

14 articles · Android, iOS, Kotlin Multiplatform, Mobile Web

Website Tech Blog

Square App Store S Square Play Store

Android / iOS Feb 24, 2025

Mobile Payments SDK General Availability and Terminal API Features

Android / iOS Jun 6, 2024

What's New in the Mobile Payments SDK Beta

Android Jul 27, 2023

Supercharging Continuous Integration with Gradle

Android Jun 27, 2023

Keeping Up with Android App Size Growth

Android Jan 12, 2023

Android Studio Electric Eel Release Celebration

Android Dec 13, 2022

Saving 5,400 Hours a Year: Developer Productivity with Gradle

iOS Sep 12, 2022

First Annual Bazel iOS Con 2022

iOS Jan 27, 2022

Getting Square's iOS Build Ready for Apple Silicon with Bazel

Android / iOS Nov 4, 2021

Beyond Mobile First: Modern Mobile Development Strategy

Kotlin Multiplatform / Android / iOS Aug 24, 2021

Kotlin Multiplatform: Shared Test Resources

Android Aug 10, 2021

Jetpack Compose Support in Workflow

iOS Apr 22, 2019

Developing on iOS and Android

Mobile Web Mar 28, 2019

Mobile Web Performance (Caviar)

Android / iOS Apr 12, 2018

A Massively Multi-User Datastore Synced with Mobile Clients