Efforts to design this software experience for the Galaxy Fold began at the framework level in April 2018. As part of this process, Samsung developed a whole new UX and collaborated closely with Google to provide integrated OS support from Android.

“We didn’t just build new category-defining hardware, we worked with major partners to design and deliver a brand-new mobile experience and foster an ecosystem that gives users access to the best applications and services,” said ES Chung, EVP and Head of Software and AI, Mobile Communications Business at Samsung Electronics. “This is software innovation that incorporates both an immersive UX and a new UI perspective to provide a seamless experience.”

Since the introduction of the Infinity Flex Display at SDC 2018, Samsung and Google set up test labs in cities across the globe – from Seoul to Mountain View to Beijing – to work with and encourage partners and developers to test and verify that their apps and services are optimized for the Galaxy Fold and the Android ecosystem. Alongside this effort, Google introduced changes in Android 10 to offer improved resizable activity, multi-resume functionality and an updated Android Emulator to help support multiple-display type switching – opening the door to future foldable device optimization. Now, select applications that Android users know and love have been updated to deliver an immersive, foldable experience on the Galaxy Fold.

“Together with ecosystem partners like Samsung, we have the opportunity to deliver an entirely new user experience that could transform the way we use our smartphones. We enjoyed working closely with the Samsung team and the Android developer community to ensure the users of the Galaxy Fold have the best experiences with their favorite apps and services,” said Sagar Kamdar, Director of Product Management for Android at Google.

Hundreds of apps have been optimized for the Galaxy Fold, including services from leading partners like Amazon Prime Video, App in the Air, Facebook, iHeartMedia, Microsoft, Spotify, Twitter, VSCO and more.

“We are excited to work with Samsung to bring Prime members their favorite shows, movies and live sports on the Galaxy Fold,” said BA Winston, Global Head of Digital Video Playback and Technology at Amazon Prime Video. “Bringing the Prime Video app to the Galaxy Fold will give customers a new way to experience Amazon Originals like Tom Clancy’s Jack Ryan and The Marvelous Mrs. Maisel with Multi Window and Multi Resume.”

“App in the Air makes the travel process seamless and efficient, and by partnering with the Samsung Galaxy Fold we are demonstrating our commitment to expanding this technology through cutting-edge mediums, reaching our shared audiences of innovators, creators, and entrepreneurs,” said Bayram Annakov, CEO, App in the Air. “Our collaboration with Samsung is helping to build a more expansive ecosystem of services for our dedicated users – and we’re thrilled to begin this partnership with such an esteemed brand.”

“We’re excited to expand our long-standing partnership with Samsung by supporting their work to develop innovative experiences for consumers,” said Marc Shedroff, Vice President, Business Development, Facebook. “The new Samsung Galaxy Fold has the potential to usher in a new era of design, and it will be exciting to see what new use cases a foldable experience will unlock for users.”

“As the latest example of our continued commitment to joint-innovation with Samsung, we are excited to be a Galaxy Fold launch partner,” said Michele Laven, President of Strategic Partnerships Group for iHeartMedia. “With the multi-active window feature, iHeartRadio users will now be able to seamlessly navigate through their listening experience without having to ever switch between apps. This also aligns with our goal of providing a frictionless audio playback experience for your favorite live radio stations, podcasts and custom Artist Radio stations.”

“Office 365 is built to help people maximize their time while creating their best work – no matter where they are or which device they’re using,” said Jon Tinter, CVP of Business Development, Microsoft. “We’re excited to extend the Office experience to the Samsung Galaxy Fold, and help people transform their personal productivity.”

“We are proud to continue our Samsung partnership with the new Galaxy Fold,” said Sten Garmark, VP of Consumer Products, Spotify. “The Fold will take mobile productivity to new heights and enable a more seamless Spotify listening experience for our users. Simply open the preloaded Spotify app to connect and listen across the Samsung ecosystem. Finding your favorite Spotify playlist favorites like Discover Weekly, or Podcasts such as Jemele Hill’s Unbothered, just got even easier!”

“We are excited to continue our partnership with Samsung and expand the Twitter experience to the Samsung Galaxy Fold. We are looking forward to seeing how people on Twitter engage with this foldable experience and its evolution over time,” said Brent Horowitz, Vice President, Global Product Partnerships at Twitter.

“Our mission at VSCO is to help everyone fall in love with their own creativity, and to build tools and spaces to help achieve this. We’re excited to continue our collaboration with Samsung to build deeper, more expansive experiences for creators everywhere,” said Bryan Mason, Chief Business Officer at VSCO.

With features like seamless App Continuity and Multi-Active Window, you can browse, watch, connect and multitask like never before. With Galaxy Fold, you can switch seamlessly from the cover display to the main display and you can run multiple apps simultaneously, on the Galaxy Fold’s 7.3-inch main display, revolutionizing the way you work and play on the go.

These top applications and services and many more are now available in the Android ecosystem for the Galaxy Fold in the Google Play Store and Galaxy Store.

For more information about Galaxy Fold, please visit news.samsung.com/galaxy, www.samsungmobilepress.com, or www.samsung.com/global/galaxy/galaxy-fold.

To learn more about the Galaxy Fold and how it establishes an all-new user-experience platform, Samsung Newsroom spoke with Jisun Park, Vice President of Strategic Partner R&D Group, and Sally Jeong, Vice President of Framework R&D Group at Samsung Electronics’ Mobile Division.

(From left) Jisun Park, Vice President of Samsung Electronics’ Strategic Partner R&D Group, and Sally Jeong, Vice President of Samsung Electronics’ Framework R&D Group

Bigger is Better

The Galaxy Fold’s spacious, 7.3-inch Infinity Flex Display is proof of the old adage that “bigger is better.”

As Jeong explained, one of the biggest realizations that the Galaxy Fold’s development team came to when testing the device was just how transformative a foldable device can have on the mobile experience.

“Before the development of the Galaxy Fold, I had a smartphone and a tablet, but the combination of the two created an entirely new experience,” said Jeong. “The larger screen completely changed things like watching movies, checking email and catching up on the news, to the point that I could no longer be satisfied with a smaller screen.”

Park also discussed the experience of using the Galaxy Fold, remarking that it is not only the presence of the big screen that makes the new device special, but the ways in which it has been optimized according to its shape and size.

“With the Galaxy Fold, it’s not just that the screen is bigger, but that the device has been optimized for two-handed use. One example is that the split keyboard feature allows the user to type comfortably when they are holding the wider device in two hands. What’s more, the camera button changes position fluidly when the phone is switched from portrait to landscape mode, and the home key can be aligned to either side of the screen so that the user doesn’t have to reposition their hand to reach it.”

With the Galaxy Fold’s official launch on September 6^th in Korea, users can now experience firsthand what makes the device such a game changer.

A Multitasking Machine

Unfolding the Galaxy Fold’s Infinity Flex Display opens up a world of possibility in terms of multitasking. This is possible thanks to innovations like App Continuity and Multi-Active Window, which make it easy for users to take full advantage of the Galaxy Fold’s versatility.

According to Park, Samsung had been prioritizing enabling users to launch and utilize up to three apps simultaneously since the earliest stages of the Galaxy Fold’s development. Multi-Active Window makes this possible, allowing users to take their multitasking, entertainment and content consumption to the next level.

When gaming, for example, Multi-Active Window enables users to launch an app like YouTube and simultaneously watch walkthrough videos of the game while they’re playing. It also makes balancing multiple tasks, including messaging friends, browsing the web and viewing multimedia, a breeze.

A Bold Vision

The Galaxy Fold is a bold device with a bold vision for the future of the smartphone. It’s a vision that’s built on hardware and apps that power richer content consumption, superior multitasking, and that opens the door for users to enjoy new mobile experiences.

To help carry out that vision, Samsung’s developers have been working closely with Google and other major partners to enrich the Galaxy Fold’s ecosystem with popular apps and services available today. And their efforts have paid off. The development team has optimized hundreds of the most frequently used apps for the Galaxy Fold – including popular apps like YouTube, Facebook and Microsoft Office.

Both Jeong and Park described Samsung’s partnership with Google as key to establishing a smooth and efficient app-optimization process for the Galaxy Fold. “We formed a collaborative taskforce with Google at the very beginning of the development process,” said Jeong, “and we’ve been building this foldable ecosystem together ever since.”

They pointed to the Galaxy Fold’s App Continuity feature as a notable example of this collaboration. Realizing this feature, which enables apps to seamlessly transition between the cover and main displays when users open and close the device, required Samsung’s developers to completely rethink conventional app operations. The challenge was the fact that the Galaxy Fold not only has two screens, but that the aspect ratios of the screens are so drastically different. What’s more, developers needed to create a seamless transition where the user opens their device, and the app they were using on the front screen transitions in its optimized form to the larger screen without stopping or restarting. Fortunately, the development team were up to the task.

Another challenge that the team faced stemmed from Android’s traditional method of managing multiple apps. As Park explained, “With ‘standard’ Android, once two apps are activated, one of them is inevitably stopped.” To solve this issue, Jeong said, the team collaborated with Google to build an all-new multi-window system that was optimized for the Galaxy Fold’s larger screen.

Assisting Developers

With each component of the Galaxy Fold’s foldable UI in place, Samsung and Google started developing the framework necessary for developers to test and optimize their apps for this new device.

Test labs were set up in Korea, the U.S. and China to offer Android developers a chance to familiarize themselves with the device’s foldable UI and update their apps. To open the door for more developers to innovate within this foldable ecosystem, Samsung released a number of easily accessible online resources, including a ‘remote test lab,’ which was supported by Google, and allows developers to test-run apps on their PC using a virtual Galaxy Fold device, and an emulator.

Together, these resources offer developers the tools they need to optimize their apps for the interface of the future. And according to Park, plenty of developers have already jumped on board.

“Our partners and developers have shown tremendous interest in developing apps for the new form factor,” said Park. “We plan to expand our test labs soon to create more opportunities for developers to enrich the Galaxy Fold’s ecosystem with dynamic apps.”

The Future for Foldable

Several of the innovations created during the development process, including App Continuity and Multi-Active Window, have not only made the Galaxy Fold’s user experience more seamless and intuitive; they’ve also set a standard for foldable phones to follow.

As a result of Samsung’s close collaboration with Google, beginning with Android’s newest version, Android 10, both of the aforementioned innovations will be included as standard features for foldable phones. “When Android 10 rolls out and becomes the new standard for Android devices,” Jeong explained, “it will lead more developers to keep foldable-phone users in mind when developing apps.”

Ongoing partnerships with Google and major app developers will help Samsung enrich the Galaxy Fold’s app ecosystem with even more dynamic services – services that will only get better with the latest 5G network.

“The combination of the Galaxy Fold’s large display and 5G’s rapid speeds will revolutionize how we utilize everyday apps and enjoy a wide range of content,” said Park. “That also includes services like 4K streaming, which means that, for instance, users will be able to comfortably view multiple video streams at the same time on their Galaxy Fold’s spacious display.”

Jeong notes that the development process to optimize apps is happening quickly. She remarks that this “rapid optimization” is accelerating the company’s ability to bring a well-rounded foldable experience to users.

If an app has not yet been optimized for the Galaxy Fold, she continued, the smartphone’s built-in app-optimizing technology will help ensure that content is displayed in a way that makes full use of the device’s large display and foldable form. “With a tap of a button, the device automatically converts the app’s size and ratio to fit the display, so users don’t experience any discomfort.”

As Park noted, through app optimization, extensive testing, and by the forging of exciting partnerships, Samsung is “laying the foundation for a seamless and diverse foldable ecosystem – with the Galaxy Fold leading the industry forward.”

“Our ultimate goal is to inspire users with a new and innovative mobile experience,” added Jeong. “Going forward, we will continue to support the development of apps that leverage the foldable UX in incredible ways, and power all-new experiences within this growing ecosystem.”