Support
Answers to common questions about Duo on iPhone.
Common questions
How do I add a Duo widget to my Home Screen?
Touch and hold an empty area on the Home Screen until the apps jiggle. Tap Add Widget, search for Duo, choose a widget, then tap Add Widget and Done.
How do I add a widget to my Lock Screen?
Touch and hold the Lock Screen, tap Customize, choose Lock Screen, then tap a widget area and select a Duo widget. The available layouts depend on your iPhone and iOS version.
Why did the widget not update right away?
iOS schedules widget refreshes and may delay them to save power. Duo cannot guarantee a real-time update. Opening Duo can collect a fresh reading, while iOS controls when the widget appears again.
Does Duo need Location access?
Only to show the name of the connected Wi-Fi network. iOS requires precise, while-in-use Location access for that name. If you decline, battery information and the other widget details continue to work; the network name is hidden.
Does Duo measure signal strength or internet speed?
Duo does not run speed tests or measure actual Wi-Fi or cellular signal strength. Cellular bars are an estimate based on the radio and network information iOS provides.
Which languages are available?
Duo is available in English and Simplified Chinese and follows your iPhone's language setting.
Still need help?
Email Duo support at ify0222yfi@gmail.com. Include your iPhone model and iOS version if they help explain the issue.