Microsoft will officially retire its Outlook Lite application on May 25, disabling mailbox access and in-app functionality for Android users. The company previously blocked new installations of the stripped-down app in October 2025 and now intends to "complete the retirement" of the service.
While user accounts will remain active, the app will effectively become a non-functional shell. Microsoft is pushing users to transition to the standard Microsoft Outlook Mobile app, which the company describes as "our primary mobile email experience."
Cost-driven transition
Launched in 2022, Outlook Lite was designed for high efficiency on low-end hardware. The app featured a 5 MB download size and could run on devices with as little as 1 GB of RAM, making it ideal for 2G and 3G networks.
Microsoft's decision to pull the plug coincides with skyrocketing memory costs. The company aims to reduce product overlap by consolidating its mobile email efforts into a single codebase.
Microsoft stated that "no admin action is required" for the shutdown, though IT administrators should notify users still utilizing the Lite version. The company also suggested that organizations might need to consider replacing older hardware that struggles to run the full Outlook Mobile app.
Despite the upcoming shutdown, Outlook Lite saw significant growth recently. In 2024, the app surpassed 10 million downloads, doubling its user base in less than a year.
Microsoft has not specified why it is abandoning support for low-storage and low-memory devices. The company's decision marks an end to a service that catered specifically to the global market of older and budget-friendly Android hardware.
