Background Location in React Native That Passes App Review
Background location in React Native and Expo: iOS and Android permissions, location tasks, geofencing, battery, and passing App Store and Play review.
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Background location in React Native and Expo: iOS and Android permissions, location tasks, geofencing, battery, and passing App Store and Play review.
React Native push notifications with Expo: credentials, permissions, Android channels, tokens, sending, taps and debugging notifications that never arrive.
Deep linking in React Native with Expo Router: URL schemes, iOS universal links, Android App Links, testing, deferred links after Firebase Dynamic Links.
Multi-tenant SaaS architecture with PostgreSQL: shared schema vs schema or database per tenant, row-level security, tenant resolution and real pitfalls.
Fitness app development for retention: the habit loop, workout video, offline logging, health data, subscriptions, MVP scope and realistic cost.
React Native vs native Swift and Kotlin: where cross-platform saves real money, the cases where native wins, and the hybrid most teams end up with.
Apple's guideline 4.3 spam rejection explained: duplicate apps, white-label templates and saturated categories like dating, and how to get approved.
Integrate Razorpay in a React Native or Expo app: orders on the server, checkout in the app, signature verification, webhooks, UPI, fees and testing.
How to build a companion app for a smart device or IoT product: onboarding and pairing, data flow, cloud sync, firmware updates, commerce and store rules.
What backend a mobile app really needs in 2026: auth, API, database, files, push, payments and admin, managed vs custom, and what to skip at the start.
Fitness app development cost in 2026 by app type, with hours at three rate levels, the features that raise the price, content and running costs.
Using Claude Code on React Native and Expo projects: where it saves time, where it doesn't, a CLAUDE.md that helps, feedback loops, and a review checklist.