DUO Mobile App presents in German or other foreign languages

Problem

Users running iOS 15, iPadOS 15, or other older iOS and iPadOS versions may open the DUO mobile app and encounter Duo Push requests and other elements within the Duo Mobile app displayed in a language, usually German, different from their configured default setting. The user’s language settings have no relevance to the issue.

Root Cause

This problem is caused by a software bug in Apple's iOS 15 and iPadOS 15 operating systems.

Solution

To solve this problem, one of the following methods can be employed:

1. Update the device to a newer OS version:

   • If the affected device supports newer software, update to iOS 16 (or iPadOS 16) or later. This resolves the language discrepancy issue.

2. Upgrade the device if updates are unavailable:

   • If the affected device cannot run newer iOS or iPadOS versions, consider upgrading to a newer device to eliminate the problem.

3. Use alternative authentication methods:

   • As an alternative, users can switch to other supported Duo authentication methods instead of Duo Mobile.

4. Use the app in German or other presenting language

   • Use the familiar colours, symbols, and button locations to accept/deny pushes and otherwise use the app.