How Cash App optimizes iOS performance

Reducing the Size of Cash App for iOS

Cash App strives to be an excellent platform citizen everywhere our app is available, and a key part of that is respectfully using our customer’s bandwidth and device storage.

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

When Cash App was originally developed we had a single service powering all backend functionality, codenamed “Franklin”.

Flow testing with Turbine

Say hello to Turbine 1.0, our library for testing kotlinx.coroutines Flow and more.

Investigating Crashes with Aardvark

Crashes can be one of the most straightforward types of issues to debug. There are many different categories of crashes that can happen on iOS - everything from bad memory access

Making iOS Accessibility Testing Easy

Unit tests are great for testing business logic, snapshot tests make sure your views look correct, and UI tests help to ensure everything fits together properly. How do you test your app’s accessibility though?

Improving Animations on iOS with Stagehand

Adding animations to your app turns a fairly routine interaction into a more enjoyable, exciting experience. These animations make a straightforward design into something that feels polished and professional.