Goldfold
iPhone Duo guides
Short guides and free tools about the iPhone Duo. Every fact about the phone comes from Apple's own pages, linked at the end of each guide.
Free tools
- iPhone Duo screen size comparisonCompare the iPhone Duo's closed and open screens with the iPhone 17 and iPhone Air, drawn to the same scale from Apple's published figures.
- iPhone Duo wallpaper makerMake a free water wallpaper at the exact pixel size of the iPhone Duo's outer or inner screen, with an optional guide for where the fold falls. Runs in your browser.
Guides
- A fish tank app for iPhone DuoWhat makes a virtual aquarium app good on iPhone Duo: it keeps going when you unfold, uses both screens and asks for nothing. Disclosure: we make Goldfold.
- iPhone Duo cameras: what you getWhat the iPhone Duo's cameras are, from Apple's specs: three rear cameras, two front cameras, and how the outer screen helps with Duo Preview and Kid Cue.
- iPhone Duo specs at a glanceThe iPhone Duo's published specs in one place: two OLED screens, A20 Pro chip, battery, storage, colors, size and weight, with Apple's launch dates.
- iPhone Duo Split View: two apps side by sideHow Split View works on the iPhone Duo: two apps side by side on the inner screen, two windows of one app, saved app pairs and Siri on the other half.
- iPhone Duo wallpaper sizeThe exact pixel sizes for an iPhone Duo wallpaper, outer and inner screen, and how to keep the fold from splitting your picture. Plus a free maker.
- How to tell if an app is made for iPhone DuoFive things to check to see whether an app is built for the foldable iPhone: the App Store badge, the toolbar column, keeping your place when you unfold, the fold and every pose.
- Apps made for iPhone DuoWhat makes an app feel made for iPhone Duo, Apple's foldable iPhone: the outer and inner screens, what should happen when you unfold it, and how Goldfold uses the fold.