Compare
AI app builders for iPhone, compared (2026)
Borel is an AI app builder made for iPhone apps: it writes native Swift and SwiftUI, compiles it with Xcode on its own Mac, runs it free in the iOS Simulator in your browser and installs it on your iPhone with a free Apple ID. Superapp also writes SwiftUI, a0.dev and CatDoes use React Native, Emergent builds web and mobile apps, and Lovable builds web apps.
Updated




Apps built by Borel, in the iOS Simulator.
How it works
How Borel makes an iPhone app
- 1
Describe it
Say what the app should do in plain words. Borel plans the screens with you.
- 2
Watch it build and run
The AI writes SwiftUI, Xcode compiles it on Borel's Mac, and the app opens in the iOS Simulator in your browser.
- 3
Install it or publish it
Borel Companion puts it on your iPhone with a free Apple ID, and Publish sends it to the App Store on Pro.
The question
Which AI app builder is best for iPhone apps?
It depends on what you want at the end. If it's a real iPhone app, the question that matters most is what the builder writes: native Swift, cross-platform code such as React Native, or a web app. Native SwiftUI is what Apple builds its own apps with, and it's the direct route to Face ID, the camera, Apple Maps and the rest of the iPhone.
So the six builders people ask about are ranked here by that: native Swift first, then React Native, then web and mobile apps, then web apps. Within a group, what you can try for free and how the app reaches a phone decide the order.
Side by side
How do the six builders compare?
What each one makes, and how it gets an app to the App Store, from each builder's own site. Every route to the App Store also takes Apple's Developer Program, $99 a year; for your own iPhone, Borel needs only a free Apple ID.
| Builder | What it makes | Publishing to the App Store |
|---|---|---|
| Borel | Native Swift and SwiftUI, compiled with Xcode | Built, signed and uploaded for you, on Pro |
| Superapp | Native SwiftUI | Yes, with an Apple Developer account |
| a0.dev | React Native apps | Yes, uploaded to App Store Connect for you |
| CatDoes | React Native and Expo apps | From its Starter plan |
| Emergent | Web and mobile apps | Yes, with export-ready builds |
| Lovable | Web apps | No built-in flow |
The ranking
Which one should you pick?
In order, for someone who wants an app on an iPhone:
- 1
Borel
Native Swift and SwiftUI, compiled with Xcode on Borel's own Mac. Every build runs in the iOS Simulator in your browser, free for everyone, and Borel Companion puts it on your iPhone with a free Apple ID. AI, accounts, data and storage are built in, with no keys. 5 free credits a day, up to 30 a month, and Pro from $20 a month includes App Store publishing.
- 2
Superapp
Also writes native SwiftUI and builds in the cloud, so it needs no Mac either. AI features connect to a provider you choose. Paid plans start at $25 a month, with 240 preview minutes on Pro.
- 3
a0.dev
Builds React Native apps. You preview a web version in your browser or open the app in a0's own iPhone app, and a0 can upload your build to App Store Connect.
- 4
CatDoes
Builds mobile apps with React Native and Expo. Publishing to the App Store starts on its Starter plan, and exporting your code on its Plus plan.
- 5
Emergent
Builds web and mobile apps, and can publish for iOS, Android or the web. Its free plan comes with 10 credits a month, and Standard is $20 a month.
- 6
Lovable
Builds web apps, published to a web address. For the App Store, its docs point to an installable web app or a Capacitor wrapper made outside Lovable.
Why Borel
What makes Borel different for iPhone apps?
The simulator, first. Every Borel build opens in Apple's iOS Simulator on Borel's Mac, streamed into your browser, and it's free for everyone. You tap and type in the real app, not a web copy of it.
Then your own iPhone, without the App Store: Borel Companion installs your app with a free Apple ID, a cable once and then Wi-Fi, and renews it every 7 days while it runs. And nothing to wire up: Borel AI, accounts, a cloud database and file storage come built in, with no API keys to paste.
Fit
Which builder fits which person?
If you want a native iPhone app, and to try it in a real simulator before you pay for anything, start with Borel. If you mainly want a website that also works on phones, a web builder like Lovable is made for that. If your team already works in React Native, a0.dev and CatDoes speak that language.
Each builder has its own page: Superapp, Lovable, Emergent, CatDoes and a0.dev. Deciding between the two ways to write an app? Read SwiftUI vs React Native.
Choose Borel if…
- You want a native SwiftUI app, compiled with Xcode.
- You want to try every build in the iOS Simulator, free.
- You want the app on your own iPhone with a free Apple ID.
- You want AI, accounts and data built in, with no keys to paste.
- You want App Store publishing on a $20 a month plan.
Frequently asked questions
For a native iPhone app, Borel: it writes Swift and SwiftUI, builds with Xcode on its own Mac, runs every build free in the iOS Simulator in your browser, and installs it on your iPhone with a free Apple ID.
Yes. Borel writes Swift with SwiftUI and compiles it with Xcode. Superapp also writes SwiftUI.
SwiftUI is Apple's own framework for iPhone apps, written in Swift. React Native is JavaScript that runs on iPhone and Android. Borel writes SwiftUI.
Yes. Borel gives you 5 free credits a day, up to 30 a month, the iOS Simulator is free for everyone, and a free Apple ID puts the app on your own iPhone.
Borel, Superapp, a0.dev, CatDoes and Emergent each have a route to the App Store. With Borel it's on Pro, and Borel's Mac builds, signs and uploads the app for you.
Not with Borel. It compiles your app with Xcode on its own Mac, and you work in a browser on Windows or a Mac.
With Borel, yes, on any plan: the SwiftUI project, with an XcodeGen project.yml that opens in Xcode.
By what each one makes for an iPhone: native Swift first, then React Native, then web and mobile apps, then web apps.
Try the native one for free
Describe an app and watch Borel build it in SwiftUI.