Power Apps Mobile Preview vs API Endpoint Maker

Test your in-development Power Apps mobile experiences on a real device — no rebuild, no resign, no store submission. Power Apps Mobile Preview app is a developer companion app for the new React Native–based Power Apps mobile runtime: scan a QR code from your local Metro bundler (or paste a dev URL) and your app loads instantly on your phone or tablet, exactly the way it will run in production. Think of it as the Power Apps equivalent of a dev sandbox. Built for makers and engineers iterating on the next generation of Power Apps mobile. WHAT'S INSIDE Power Apps Mobile Preview is a thin host that loads your in-progress app bundles over the wire so you can see code, layout, and data changes in seconds. • Scan-to-load: Point the in-app scanner at the QR code printed by your local Metro / Expo dev server and the JS bundle streams onto the device. • Manual URL entry: Type or paste any reachable dev-server URL (e.g., http://192.168.1.20:8081) when QR scanning isn't an option — tunnels, remote machines, restricted networks. • Fast Refresh: Save a file in your editor and watch the change appear on device, with component state preserved where possible. • Native module parity: Bundled with the same native modules the production Power Apps client ships — auth, connectors, file system, camera, location, secure storage, telemetry — so what you test is what your users will get. • Sign-in with your work or school account: Authenticate once with Microsoft Entra and your dev apps can call Dataverse, Microsoft Graph, and custom connectors with real tokens. • Recent connections list: Quickly re-open previously loaded dev URLs without re-scanning. • Diagnostic overlay: Surface bundle URL, runtime version, JS errors, and red-box stacks for fast triage. WHO IT'S FOR • Makers previewing custom React Native components and pages before publishing. • ISVs and partners building native extensions against the Power Apps mobile runtime. • Engineers on the Power Apps platform team validating SDK and connector changes end-to-end on real hardware. TIPS • Make sure your phone and dev machine are on the same Wi-Fi network — if they aren't, use a tunnel (e.g., expo start --tunnel) and paste the public URL. • Shake the device (or use the menu) to reload the bundle, toggle the element inspector, or open the dev menu. • Long-press a recent connection to remove it from the list. • Mobile Preview app is for development only. You will need to package and distribute your own production apps to App Store or enterprise distribution channel. DISCLAIMER This is a developer only release intended for development and evaluation. APIs, behaviors, and supported native modules may change before general availability. Do not rely on Mobile Preview app for production workloads. Accessibility: https://go.microsoft.com/fwlink/?linkid=2121429

API Endpoint Maker – REST API Testing Build, mock, test, and run REST APIs directly from your iPhone or iPad. API Endpoint Maker turns your device into a powerful local REST API server and API testing tool. Create mock APIs, custom JSON responses, test HTTP requests, simulate backend services, and debug API integrations without needing a laptop or cloud server. Whether you're a mobile developer, frontend developer, backend engineer, QA tester, student, or API enthusiast, API Endpoint Maker helps you build and test REST APIs anywhere. Build REST APIs Quickly Create and run local API endpoints in seconds. • Create unlimited API endpoints • GET, POST, PUT, PATCH, and DELETE support • Custom API routes • Local REST API server • Test APIs over your Wi-Fi network • Custom server ports • Auto-start server • Bonjour support Create Mock APIs & JSON Responses Build realistic API responses for development and testing. • JSON response editor • Custom HTTP status codes • Success and error responses • Response delay simulation • Dynamic variables • Custom response headers • API response preview Perfect for mock API development, frontend testing, mobile app development, and backend prototyping. Test HTTP Requests Test your REST API endpoints before connecting your application to a production backend. • Send HTTP requests • View formatted JSON responses • Request and response headers • Response timing • Authentication support • Request details • API debugging Dynamic Test Data Generate realistic API data without manually creating every value. • UUID generation • Timestamps • Random numbers • Random names • Email addresses • Dates Use dynamic variables to create realistic responses for API testing and application development. Monitor API Requests See exactly what is happening with your local API server. • Request history • HTTP methods • HTTP status codes • Response times • Client IP addresses • Search request logs • Request debugging Organize Your API Projects Keep your mock APIs and endpoints organized. • Collections • Multiple API projects • User Management templates • E-commerce API templates • Analytics API templates • Authentication API templates Local REST API Server Run a lightweight API server directly on your iPhone or iPad. • Local network API access • Custom ports • Bonjour service discovery • Auto-start server • Directory listing • Basic Authentication Your device can act as a convenient local backend and mock API server for testing applications on the same network. Built for Developers API Endpoint Maker is useful for: • REST API development • API testing • Mock API testing • Mobile app development • iOS development • React Native development • Flutter development • Swift development • Kotlin development • React development • Vue development • Angular development • Backend testing • QA testing • API prototyping • Frontend development • Learning REST APIs Privacy First Your API development environment stays local. • No account required • No signup required • No login required • No cloud storage • No API data uploaded to a remote server • Local network focused Start using the app immediately without creating an account. Choose Your Plan Monthly – $2.99/month Yearly – $14.99/year Lifetime – $29.99 Subscriptions automatically renew unless canceled at least 24 hours before the end of the current subscription period. Payment is charged to your Apple ID account. You can manage or cancel subscriptions through your Apple ID account settings. Build, mock, test, and debug REST APIs and HTTP requests anywhere with API Endpoint Maker. Apple Standard EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula