---
title: "Project Catalyst Will Help iOS Developers Bring Their Apps to macOS"
locale: "en"
language: "en-HK"
published: "2019-06-17T16:35:08+08:00"
updated: "2026-03-17T23:03:05.269Z"
canonical: "https://accordhk.com/blog/project-catalyst-will-help-ios-developers-bring-their-apps-to-macos-129"
---

# Project Catalyst Will Help iOS Developers Bring Their Apps to macOS

Apple officially unveiled Project Catalyst at WWDC, making it easier for teams to adapt iOS apps for macOS. Twitter says the tool let it get its app running on the Mac within days, with the same team able to update the iPhone, iPad and Mac versions together.

## In brief

Project Catalyst will help iOS development teams bring their apps to macOS. Twitter says it got its app running on the Mac within days and can update all three versions with the same team and little additional staffing cost. Developers will be able to try the tool at WWDC alongside MacOS Catalina.

As expected, Apple officially unveiled a tool at WWDC that makes it easier for developers to bring[ iOS apps](<http://hkmobiledeveloper.com>) to OSX: “Project Cataylst.” Its predecessor was last year’s Marzipan, and it will be compatible with Xcode [developer](<http://hongkongappsdeveloper.com>) tools. This means teams developing iOS apps can easily adapt their interfaces for macOS and develop apps for both mobile devices and desktop computers.

Twitter is among the first to try this new tool, which also means that, more than a year after discontinuing its official [app](<http://apps-development-hong-kong.com>), Twitter will return to the Mac platform. Twitter says Project Catalyst enabled it to get “Twitter running on the Mac within days,” and the same team can now update the Twitter apps for iPhone, iPad and Mac together without much additional staffing cost. Details about the new Twitter app for Mac are still limited, but it would be no surprise if it ends up looking exactly like the mobile version.

Project Catalyst will be made available for developers to try at WWDC alongside MacOS Catalina.

Original article URL: https://engt.co/31CkB2n

## Frequently asked questions

### What will Project Catalyst help developers do?

It will make it easier to bring iOS apps to macOS and adapt their interfaces for the Mac. Teams will be able to develop apps for both mobile devices and desktop computers.

### How is Project Catalyst related to Marzipan and Xcode?

Its predecessor was the previous year’s Marzipan. The article says Project Catalyst will be compatible with Xcode developer tools.

### How is Twitter using Project Catalyst?

Twitter says the tool enabled it to get its app running on the Mac within days. The same team can update the iPhone, iPad and Mac apps together without much additional staffing cost.

### When will developers be able to try Project Catalyst?

The article says Project Catalyst will be available for developers to try at WWDC alongside MacOS Catalina.