Build Apps From Your iPhone

A mobile IDE that lets you build, preview, and deploy Vite + TypeScript apps directly from your pocket. Powered by AI code generation.

100% Mobile Native
AI Powered
Possibilities

Everything You Need to Build

From idea to deployed app, all from your iPhone

🤖

AI Code Generation

Describe what you want in natural language. Our proprietary coding agent writes production-ready Vite + TypeScript + React code for you.

  • Natural language prompts
  • Context-aware editing
  • Smart file management
📱

In-App Preview

See your app render live inside Kestrel's built-in WebView. No need to switch apps or wait for external builds.

  • Instant preview
  • Hot reload support
  • Full interactivity
☁️

Cloud Builds

Push your code to GitHub and trigger GitHub Actions builds. Download compiled artifacts directly to your device.

  • GitHub integration
  • Automated CI/CD
  • Artifact downloads
🚀

Capacitor Ready

Output is ready for native iOS/Android compilation. Build once, deploy everywhere with Capacitor.

  • Native app output
  • iOS & Android
  • Plugin ecosystem

From Idea to App Store

A complete development workflow on your mobile device

1

Sign In

Authenticate with GitHub OAuth to access your repositories

2

Select Repository

Browse your repos and select a branch to work on

3

AI Agent

Describe what you want to build in natural language

4

Generate Code

Watch as the agent creates and edits your files

5

Preview

See your app live in the built-in WebView

6

Push & Build

Sync to GitHub and trigger cloud builds automatically

7

Deploy

Use Capacitor to build native iOS/Android apps

Built With Modern Tech

Powered by the best tools in the ecosystem

⚛️
React Native + Expo
TS
TypeScript 5.x
Vite 5.x
GitHub Actions CI/CD
Capacitor Native Bridge
🧠
Kestrel Agent AI Core

What Can You Build?

From quick prototypes to production-ready apps

🚀

Startup MVPs

Build and iterate on your startup idea during commutes, waiting rooms, or anywhere inspiration strikes. Go from concept to working prototype in hours, not days.

🎨

Portfolio Projects

Create impressive portfolio pieces on the go. Perfect for students and developers looking to showcase their skills with polished React applications.

🔧

Quick Fixes & Hotfixes

Production bug at 2 AM? Fix critical issues from anywhere. Push changes, trigger builds, and deploy without opening your laptop.

📚

Learning & Experimentation

Learn React, TypeScript, and modern web development through hands-on practice. The AI assistant explains concepts as you build real applications.

🤝

Client Demos

Quickly prototype client ideas during meetings. Show them a working demo instead of wireframes—all built in real-time on your phone.

Hackathons

Get a head start or make progress on the move. Kestrel's AI code generation helps you ship faster when every minute counts.

Your Code, Your Control

Enterprise-grade security for developers who take privacy seriously

🔐

End-to-End Encryption

All data transmitted between your device and our servers is encrypted using TLS 1.3. Your code never travels unprotected.

🛡️

OAuth 2.0 Authentication

We use GitHub's secure OAuth flow. We never see or store your GitHub password—only authorized access tokens that you can revoke anytime.

🗑️

No Permanent Storage

Your code is processed for AI generation but not permanently stored on our servers. Your projects live in your GitHub repositories—where they belong.

You Own Your Code

Everything you create is 100% yours. We claim no intellectual property rights over the applications you build with Kestrel.

Frequently Asked Questions

Everything you need to know about Kestrel

Kestrel is a mobile IDE (Integrated Development Environment) for iOS that lets you build, preview, and deploy web applications directly from your iPhone. It combines an AI-powered code generation agent with a full development workflow including GitHub integration, live preview, and cloud builds.

While some familiarity with web development concepts helps, our AI agent can generate complete applications from natural language descriptions. Beginners can start with simple prompts and learn as they go, while experienced developers can use Kestrel to accelerate their workflow.

Kestrel generates Vite + TypeScript + React applications. The output is Capacitor-ready, meaning you can compile your web app into native iOS and Android applications. This gives you the best of both worlds: rapid web development with native app distribution.

You sign in with GitHub OAuth, which gives Kestrel secure access to your repositories. You can browse repos, select branches, push changes, and trigger GitHub Actions workflows—all from within the app. Your code stays in your own GitHub account.

Cloud builds use GitHub Actions to compile your project on GitHub's servers. When you push code, Kestrel can trigger a build workflow, wait for it to complete, and download the compiled artifacts directly to your device for preview. This offloads heavy compilation work to the cloud.

Yes! You can cancel your Kestrel Pro subscription at any time. You'll retain access to all paid features until the end of your current billing period. No commitments, no hassle.

Absolutely. All communication is encrypted with TLS 1.3. Your code is processed for AI generation but not permanently stored on our servers. You retain full ownership and intellectual property rights to everything you create. See our Privacy Policy for details.

Kestrel requires an internet connection for core features like AI code generation, GitHub sync, and cloud builds. However, you can view and edit previously downloaded code locally, then sync when you're back online.

The in-app preview shows your web app running in a WebView inside Kestrel—great for development and testing. For production deployment, you can use Capacitor to wrap your app as a native iOS or Android application, then submit it to the App Store or Google Play.

Kestrel Pro subscribers get priority support. You can reach us at contact@kestrel.bot for any questions, issues, or feedback. We typically respond within 24 hours.

Simple, Transparent Pricing

One plan with everything you need

Most Popular

Kestrel Pro

$8.99 /month
  • ✓ AI code generation (usage limits apply)
  • ✓ Real-time preview
  • ✓ GitHub integration
  • ✓ Cloud builds
  • ✓ Capacitor export
  • ✓ Priority support

Cancel anytime. No commitments.

Ready to Build From Anywhere?

Start building your next app directly from your iPhone today.