Microsoft is shutting down its lightweight Outlook Lite app for Android in 6 weeks

Microsoft has announced that support for one of its most widely used lightweight email clients is coming to an end. The app in question is Outlook Lite, the stripped-back email client designed specifically for Android, which will no longer be supported after May 25. According to Neowin, Microsoft is looking to migrate the remaining users to the main Outlook mobile app.

If you haven't heard of it before, Outlook Lite launched four years ago and was designed for older and low-powered Android devices with limited network connectivity. It was aimed at users on 2G and 3G connections running phones with 1GB of RAM or less, and occupied just 5MB of storage. Microsoft positioned it as a practical solution for individuals, schools, universities, and small businesses running lightweight mobile devices. The trade-off, however, was that it lacked the full feature set found in the main Outlook app.

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The company has been preparing for this transition for months. Microsoft stopped new downloads of Outlook Lite on October 6, 2025, but existing users were allowed to continue using it as normal. Now, that window is closing too. Microsoft has confirmed the retirement as part of a broader effort to reduce overlap and focus development on Outlook Mobile as its primary mobile email experience.

We will complete the retirement of the Microsoft Outlook Lite app on Android on May 25, 2026. As previously communicated in MC1148534, Outlook Lite will be retired as part of our broader effort to reduce overlap and focus development and support on Microsoft Outlook Mobile, our primary mobile email experience. After this change, Outlook Lite will no longer provide functional access to mailbox features.

Past the cutoff date, you can still launch the app, but mailbox access will be completely disabled. The app will no longer recognize navigation or provide access to any mailboxes. The good news is that your accounts, emails, calendar items, and attachments are tied to your user account rather than to the app itself, so everything will remain accessible after you log in to the main Outlook mobile app.

To make the transition easier, Microsoft has added an Upgrade button inside Outlook Lite that takes users directly to the Play Store to download the full Outlook mobile app.