If you miss iOS 4 or simply never had the chance to own an iPhone 3G, OldOS is the app you need to relive the experience of one of the first iPhones ever made.
iOS 4 originally appeared nearly 10 years ago. It was Apple’s first operating system to drop the iPhone OS naming convention.
For the nostalgic and fans of yesteryear, an 18-year-old developer has now recreated iOS 4 and encapsulated it in an iPhone app for all to use.
OldOS is “designed to be as close to pixel-perfect as possible,” says Zane, the developer behind the app. It’s all built using Apple’s SwiftUI, so it includes buttery smooth animations and even the old iPhone home button that vibrates with haptic feedback to make it feel like a real button.
Today is Launch Day 🚀
Introducing OldOS — iOS 4 beautifully rebuilt in SwiftUI.
* 🎨 Designed to be as close to pixel-perfect as possible.
*📱 Fully functional, perhaps even usable as a second OS.
* 🗺️ Fully open source for all to learn, modify, and build on. pic.twitter.com/K0JOE2fEKM
— Zane (@zzanehip) June 9, 2021
Everything else works as it would have back then. Safari lets you browse the web using its old interface, and the App Store also lists apps that will, however, redirect you to the modern store to download and install.
OldOS is available on Apple’s TestFlight platform. Zane has also published the source code for the entire project on GitHub where it can live forever.