Most localization CI pipelines verify that translation files exist — not that they're correct. This post covers eight build-time checks that catch placeholder mismatches, incomplete plural forms, invisible encoding corruption, and the class of silent failures that AI-assisted translation introduces before they reach production.
With per-app language settings now standard on iOS 16+ and Android 13+, runtime locale switching is a first-class user expectation — not an edge case. This post covers the six distinct failure modes that occur when users change language mid-session, with platform-specific diagnosis and fixes for iOS, Android, and React Native. A correctly formatted string is useless if the locale state driving it is stale.
Number, date, and currency formatting is the localization category most teams treat as solved until it breaks in production. This guide covers correct formatter usage on iOS, Android, and React Native, documents the edge cases that consistently cause bugs — Arabic-Indic numerals, zero-decimal currencies, de-CH vs. de-DE — and provides a concrete testing checklist for every new locale you ship.
Most RTL launch failures aren't caused by engineers who didn't know better — they're caused by assumptions about who was handling which part of the review. This 27-item checklist covers layout mirroring, text rendering, number formatting, string quality, input behavior, and App Store distribution across iOS, Android, and React Native. Use it as a PR gate, a release sign-off template, or a handoff document to a localization QA vendor.
RTL failures cluster in predictable patterns that most test suites never exercise. This post covers six specific failure modes — from mirroring gaps in custom views to bidi rendering breaks in formatted strings — with reproduction steps and concrete fixes for Android, iOS, and React Native. Arabic and Hebrew together represent 400M+ potential users; these bugs are preventable with systematic testing.
Localization bugs ship silently, affect entire markets, and require coordinated fixes across engineering and translation teams. This guide covers a three-layer testing strategy — pseudo-localization, layout testing, and string validation — with platform-specific implementation details for iOS, Android, and React Native.
Arabic and Hebrew support breaks mobile apps in unexpected ways across iOS, Android, and React Native. Beyond text direction, RTL languages challenge fundamental layout assumptions that cause constraint failures, incorrect icon mirroring, and navigation flow confusion.
AI translation can destroy mobile resource files if not properly constrained. This guide shows how to safely translate Android strings.xml, iOS .strings, and React Native JSON files with validation scripts and CI/CD integration.
Managing translations across iOS, Android, and React Native means juggling three different resource formats while keeping content in sync. This guide shows how to establish a single source of truth and automate synchronization without losing platform-specific flexibility.
Poor string management can turn localization from a smooth workflow into a translation nightmare. These seven anti-patterns create bottlenecks that slow down velocity and frustrate both developers and translators.
