Dev Tools
React Native and Expo techniques, build-error and crash troubleshooting, and API integrations that help you take Rork-generated code to production quality.
When 'pod install' Fails on Rork-Exported iOS Projects — A Practical Guide for the Apple Silicon Era
Most pod install failures on Rork-generated iOS projects come from the same handful of root causes — Apple Silicon ffi mismatches, Ruby version conflicts, CocoaPods version drift, Xcode path issues, and Hermes/Folly compile errors. Here is the order I work through them.
Sign in with Apple in Rork: Server-Side Verification, Account Linking, and the Mandatory Deletion Flow
A Sign in with Apple button that only lives on the client tends to fray on the server before it ever fails review. This guide builds the rest on Cloudflare Workers: a server-issued nonce, ID token verification, prompt authorizationCode exchange, an account deletion flow that revokes properly, and Apple's server-to-server notifications.
react-native-chart-kit BarChart with Multiple Datasets: Side-by-Side Implementation Patterns for Rork Apps
react-native-chart-kit's BarChart doesn't support multiple datasets out of the box. Learn 3 practical workarounds for side-by-side grouped bar charts in Rork apps — from quick color-coded fixes to migrating to Victory Native.
Writing Prompts for Complex Screens in Rork Max
How to write Rork Max prompts that reliably generate complex screens like dashboards, filtered lists, and validated forms — covering role context, data types, UI spec, and iterative refinement.
Using the useFigma Hook in Rork Max to Bridge Design and Code
A practical guide to Rork Max's useFigma hook — covering Figma integration setup, design token extraction, frame-to-component conversion, and caching strategies for production builds.
How I Cut My Rork App's AI Costs from $350 to $35/Month with Cloudflare AI Gateway
The default AI Gateway cache key is built from the request you actually send. Here is why prompt normalization silently does nothing, how to wire it in with cf-aig-cache-key, and the Workers and React Native code I run in production.
Why StatusBar Colors Won't Apply in Rork — and How to Fix It
A practical, case-by-case guide to fixing StatusBar color and style issues in Rork apps across iOS and Android, based on real shipping experience.
How to Fix 'text strings must be rendered within a <Text> component' in Rork
Learn how to fix the common 'text strings must be rendered within a Text component' error in Rork apps. Covers the 4 most common causes including the && operator with numbers, conditional rendering, style arrays, and whitespace — with concrete code fixes for each.
Sandbox Testing for Rork Subscriptions — The Apple and Google Pitfalls Indie Devs Hit Most
A practical walkthrough of validating Rork-generated subscription code in Apple and Google sandbox environments, covering the specific pitfalls solo developers hit most often before going live.
When Your FlatList Starts Stuttering: Migrating Rork Apps to FlashList v2
When your Rork app's long lists start feeling sluggish, migrating to FlashList v2 makes scrolling dramatically smoother. Here is the practical migration path, taking advantage of v2's removal of estimatedItemSize.
10 Refactoring Patterns to Take Rork Max's Generated SwiftUI Code from Demo to Production
Rork Max generates SwiftUI in seconds, but the output won't always pass App Store review as-is. Here are ten refactoring patterns I run on every generation, with before/after code, to ship without rejections.
Adding Native Modules to Rork-Generated Apps: A Practical Guide to Expo Prebuild
When your Rork prototype needs a native SDK or custom module, Expo Prebuild is the bridge to production. This practical guide walks through the limits of Managed Workflow and the actual commands for moving toward Bare Workflow.
Adding a Notification Service Extension to a Rork App — Rich Push, Encrypted Payloads, and Dynamic Rewriting
Wiring a Notification Service Extension into a Rork-built iOS app — image attachments, end-to-end encrypted payloads, and dynamic APNs payload rewriting — with working Swift code and the production pitfalls that bit me along the way.
EAS Update Published but Nothing Changes? Five Patterns That Quietly Break OTA Delivery in Rork
You ran eas update, the CLI showed a green Published, but your iPhone keeps loading the old code. Here are the five patterns I keep running into, plus a five-minute diagnostic flow you can use the next time OTA goes silent.
Catch Silent Deprecations Before the Next OS Update Breaks Your Rork App
Apple and Google deprecate APIs every year, and your app breaks the morning after. Build the watchdog: a four-layer monitoring setup with concrete CI scripts that catches Required Reason APIs, missing Privacy Manifests, targetSdkVersion shifts, and Expo SDK signals before submission fails.
Adding iOS 18 Dark / Tinted Icons and Android Themed Icons to a Rork App
A practical walkthrough for shipping iOS 18 dark and tinted icons and Android 13+ themed icons from a Rork-generated project. Asset prep, Expo config, cache pitfalls when replacing icons, and what App Store Connect actually checks for.
Implementing CallKit + PushKit in Rork: Native Call UI and VoIP Push for Voice & Video Apps
A practical, production-grade walkthrough for wiring CallKit and PushKit into a Rork-built voice or video calling app — covering token lifecycle, audio sessions, App Store review risks, and the WebRTC handoff.
The Warning You Get When You Nest a FlatList Inside a ScrollView in Rork — Patterns That Actually Fix It
When you build a screen in Rork with a header and a long list below it, you'll see the 'VirtualizedLists should never be nested' warning. Here's why it happens and the right ways to fix it using ListHeaderComponent, SectionList, and FlashList.
Implementing Screen Recording and Broadcast in Rork Max — A Production Guide for ReplayKit and MediaProjection
Integrate iOS ReplayKit and Android MediaProjection into your Rork Max app for gameplay recording, tutorial creation, and live broadcasting—covering the full production pipeline.
Rork × AI Moderation Production Guide: Reporting, Auto-Review, and Tiered Sanctions for UGC Apps
A complete production-grade guide to layering AI moderation, reporting, and tiered sanctions into your Rork UGC app. Includes a working three-layer pipeline using OpenAI Moderation, Perspective API, and Cloudflare Workers Queues.
Fix Disappearing Characters and Jumping Cursors in Rork TextInputs (3 Patterns)
Three state-related patterns that cause TextInput characters to vanish or cursors to jump in Rork-generated React Native apps, with the exact code changes that fix each one.
How to Track Down 'undefined is not an object' Errors in Rork — Fast
Read Hermes' 'undefined is not an object' error correctly in Rork — five typical causes with code, plus debugging steps when stack traces look unhelpful.
A Prompt Engineering Blueprint for Building Mobile Apps with Rork
How to design instructions to Rork so it returns the implementation you actually want when building mobile apps. A practical methodology distilled from real shipping experience.
Why Your Rork App Loses Data After an iCloud Restore (and How to Fix It)
If users complain that 'everything was wiped after switching iPhones,' the cause is almost always your iCloud backup configuration. This guide walks through how AsyncStorage, Documents, and Keychain behave on restore in a Rork app — and the exact settings you need to keep user state intact.
Bluetooth Low Energy in Rork Apps — A Practical BLE Guide with react-native-ble-plx
A hands-on guide to talking to BLE peripherals — heart-rate monitors, smart locks, custom IoT boards — from a Rork-built app. Covers permissions, scanning, connection, read/write, and disconnect handling with real code.
Implementing App Tracking Transparency in Rork: How to Pass App Store Review
How to implement App Tracking Transparency (ATT) in Rork-built iOS apps so they pass App Store review on the first try, with the right Info.plist copy, prompt timing, and graceful fallback when users deny tracking.
Designing a Subscription Entitlement State Machine in Rork — Never Misidentify Who Has Access Right Now
Design a subscription entitlement state machine in Rork that never confuses refunds, family sharing, cancel, resubscribe, or grace periods. Production-ready code and pitfalls included.
Rork × MetricKit — Building a Solo Diagnostics Pipeline for Crashes, Hangs, and Battery Drain
A practical guide to building a continuous production-quality observability pipeline for Rork-built apps using only Apple's first-party MetricKit framework — no third-party SDKs needed.
Why Your Rork Android App Shows a White Square Notification Icon (and How to Fix It)
Your Rork or Expo app's notification icon shows up as a white square or blob on Android. Here's the underlying Android spec, the correct transparent icon recipe, the right app.json fields, and the cache traps that make fixes appear to do nothing.
Building a Real-Time Collaborative App Backend with Rork and Cloudflare Durable Objects — Full Implementation Guide
A production-grade walkthrough for adding a self-hosted real-time collaboration backend to your Rork app using Cloudflare Durable Objects. Covers WebSocket lifecycle, hibernation-aware sessions, optimistic updates from React Native, and cost-aware design patterns — without depending on Liveblocks or Yjs hosting.
Fixing Date/Timezone Bugs in Rork Apps: When Times Are 9 Hours Off
When dates appear shifted by 9 hours, when an entry made at 11pm shows up on the wrong day, or when production data drifts—here are the patterns that catch Rork developers and how to fix them safely.
Adding Bottom Sheets to a Rork App — A Practical Guide to @gorhom/bottom-sheet on iOS and Android
Rork's default Modal works for confirmations, but the moment you need multiple snap points or inertial scroll inside the sheet it falls short. This guide walks through dropping @gorhom/bottom-sheet into a Rork project, handling the keyboard, and smoothing out iOS/Android differences.
Implementing Screen Time Control Apps with Rork Max — Family Controls / DeviceActivity / ManagedSettings
A complete walkthrough for shipping a Screen Time-style app with Rork Max — covering Family Controls authorization, DeviceActivity scheduling, and ManagedSettings shielding via custom native modules and a DeviceActivityMonitor extension.
Five Fix Patterns for TypeScript Errors That Refuse to Leave Your Rork-Generated Code
When Rork-generated React Native code is buried in red squiggles and the AI keeps re-introducing the same TypeScript errors, these five patterns and their concrete fixes are the first places to look.
Fixing Missing Bottom Tab Icons or Unresponsive Tabs in Rork Apps
When your Rork-built app suddenly loses its Bottom Tab icons or tabs stop responding to taps, the cause is usually one of three patterns. Here's how to triage the symptom and apply the right fix in minutes instead of hours.
Building AI Backends for Rork Mobile Apps: When to Use Cloudflare Containers vs Workers AI
A practical guide to choosing between Cloudflare Containers and Workers AI when building AI features for Rork-generated mobile apps, with cost numbers and code examples.
Implementing Share Extensions with Rork Max — Adding Your App to iOS's Share Sheet
A production-ready guide to building iOS share extensions on top of a Rork Max project. Covers App Groups, URL schemes, minimal extension UI, and the gotchas that ship-blocking apps every quarter.
Communicating Design Rules to AI: Using DESIGN.md for Mobile Apps
Google's open-source DESIGN.md format helps you communicate design specifications to AI tools like Rork. Learn to define colors, typography, and spacing rules in markdown so AI-generated UI stays consistent with your brand.
Why In-App Purchases Disappear with Family Sharing — Building Bulletproof IAP for Family Apps with Rork
Subscription revenue from Family Sharing purchases can vanish days after the sale settles. This guide covers the four refund triggers, a StoreKit 2 + Server Notifications V2 implementation for Rork apps, and a StoreKit Testing matrix that catches family edge cases before launch.
Force Updates in Rork Apps: A Practical Guide to Sunsetting Old Versions Safely
How to design and implement a force-update flow for Rork apps. Covers soft vs hard updates, remote-driven version policy, store routing, and post-cutover monitoring.