Welcome to the support page for Duo Wallpaper (the "App"). Below are answers to frequently asked questions. If your issue isn't covered, reach us through the contact channels at the bottom of this page.
1. Frequently Asked Questions
How do I set a wallpaper?
Tap the "How to Apply" button at the top right of the wallpaper preview page for a step-by-step guide: 1) Save to Photos; 2) Open the system "Settings" → "Wallpaper"; 3) Choose the saved wallpaper for your Lock Screen and Home Screen respectively.
How do I set a Live Photo wallpaper?
Choose "Save as Live Photo" on the preview page, then open the system "Settings" → "Wallpaper" → "Add New Wallpaper", pick the photo from your Live Photos album and set it as the Lock Screen. Press and hold the Lock Screen to play it.
How does the dual-screen wallpaper work on iPhone Duo?
The App is built for the iPhone Duo: it provides dedicated wallpapers for the outer display (portrait) and the inner display (landscape), applies them as a matched set in one tap, and adapts the layout automatically as you fold and unfold. It also works great on any iPhone or iPad.
Why isn't my home screen widget updating?
Widgets refresh on a system-managed schedule, not in real time. Try: checking your network connection; long-pressing the widget on the Home Screen, removing it and adding it again; or simply waiting — the system will refresh it automatically.
How do I restore purchases?
Sign in to the App Store on this device with the same Apple ID used for the purchase, then tap "Restore Purchases" on the membership page to restore your lifetime or subscription benefits.
My membership isn't active after purchase. What should I do?
Receipt syncing from Apple can be delayed. Try "Restore Purchases" first. If it still doesn't work, contact us via [Me] → [Feedback] with your order details and we'll help you resolve it.
Refunds and subscription management
In-app purchases are processed by Apple. To view, change or cancel a subscription, go to your App Store account settings. To request a refund, use Apple's official portal at reportaproblem.apple.com.
Are favorites and downloads synced?
Favorites, downloads and browsing history are stored locally on your device and are never uploaded to a server. Deleting the App or clearing its data will remove local records, so save any wallpapers you want to keep first.
2. Contact Us
- Email: duowallpaper@163.com
- In the App: [Me] → [Feedback]
We usually reply within 1–3 business days (excluding holidays).