Bat Signal in the Dark wallpaper

Bat Signal in the Dark is a free phone wallpaper from the ZaPixel catalogue, sized for iPhone and Android lock and home screens.

Free, with no account. The full 4K file is in the app.

Set it on iPhone

1. Open Bat Signal in the Dark in ZaPixel and preview it on the lock screen.
2. Tap Save — it goes straight to Photos.
3. In Photos, tap Share › Use as Wallpaper.

Set it on Android

1. Open Bat Signal in the Dark in ZaPixel.
2. Tap Set, then choose home screen, lock screen or both. Undo is one tap away.