Build iOS apps with AI
Paperline is a local AI builder for native iOS apps with Swift and SwiftUI.
Chat with an AI agent and ship to the App Store.

Chat and build
Skip the canvas and code editors — just describe what you want. Paperline turns your words into a working iOS app that runs locally on your device or simulator.
Simple setup
No manual config or complex tools. Paperline checks your Mac, guides you through Xcode installation if needed, and installs the iPhone simulator for you.
Real iOS apps
Paperline creates fully native iOS apps with Swift and SwiftUI — native design and performance, full access to iOS features.
And many more
Truly native
Real Xcode projects. Real Swift code. Everything runs locally on your Mac with native Apple design and performance.
Real device runs
Test on your real iPhone or iPad connected to your Mac. No cloud, no latency — just plug in and run. Or iterate with built-in simulators.
Iterate on the go
Need changes? Just describe it. Add new screens, update logic, refine layouts — all in chat, in real time.
Private projects
Your code never leaves your Mac. Everything runs locally, so your projects stay 100% private and under your control.
Smart context
ProOptimizes every message for efficiency. Uses fewer tokens while keeping full context — costs less than your own API key.
Pro agent
ProActs like a real developer. It plans tasks, reads and edits files, and can build a full feature — step by step, in a single run.
How it works
1. Describe your app
Describe what you want to build — screens, flows, functionality. AI agent starts coding instantly.
2. Watch it build
See your app take shape in real time — Swift code, native UI, all generated as you chat.
3. Deploy easily
Paperline archives, signs, and uploads your app to App Store in minutes.