Download IhramOS, Nusuk, Tawakkalna, an offline Quran app, offline Google Maps, and a translation app — ensure all offline data is cached before travel.
Before departing for Hajj, download these essential apps: IhramOS provides offline-first ritual guidance, GPS-triggered dua suggestions, automated tawaf/sa'i counting, and emergency SOS features that work without internet — critical when cellular networks are overwhelmed. Nusuk is the official Saudi Ministry app for Hajj management, permits, and scheduling. Tawakkalna may be required for certain access points and health verification.
Also download a reliable offline Quran app with translation in your language, Google Maps with offline map data for Makkah, Madinah, and the holy sites pre-cached, and a translation app (Google Translate supports offline Arabic). The single most important preparation is downloading all offline content before you travel — during peak Hajj days with 2+ million pilgrims, cellular networks become extremely congested and unreliable. Any app that requires constant internet will fail you when you need it most.