Mujhe apne mobile devices par ek app chalti hui chahiye—Android phone par bhi aur iPhone par bhi. Filhaal mere paas koi install file, APK, ya IPA nahi hai, isliye mujhe pura process samajhane aur complete karwane mein madad chahiye: download source locate karna, compatible build tayaar karna, aur phir donon platforms par successfully install karna. Agar build generate karne ke liye Xcode, Android Studio, TestFlight, ya sideloading tools (ADB, AltStore, etc.) ki zarurat pade to aap handle kar sakte hain. Mera focus sirf itna hai ki app dono devices par launch ho-kar khul jaaye aur basic testing pass kar de. Acceptance criteria: • Android phone par icon tap karte hi app sahi se open ho. • iPhone par home screen icon se app launch ho aur crash na ho. Step-by-step guide ya short video screen recording bhi chahiye taaki future mein main khud installation repeat kar sakun.