Growing In Money is my personal business-marketing platform and the next release must shift from traditional document checks to seamless biometric verification. I want every new or returning user to confirm identity exclusively through Face ID or Touch ID—no photos of passports, no manual review, simply a quick scan that unlocks the full experience. Scope • Replace the existing document-upload flow with native Face ID / Touch ID authentication on compatible iOS and Android devices. • Keep the current marketing features intact—campaign pages, referral links, analytics—but ensure the new sign-up & sign-in path feeds into them without hiccups. • Store and validate biometric tokens securely in line with Apple and Google guidelines; no raw biometric data may ever leave the device. • Deliver clean, well-commented code plus a short hand-off note so my team can maintain the feature later. Acceptance criteria 1. A first-time user can register with Face ID or Touch ID only. 2. Subsequent logins succeed or fail based on the same biometric. 3. All existing user data, campaigns, and brand-awareness analytics remain unaffected. 4. Build installs and runs without errors on the latest iOS and Android releases. 5. A quick README explains setup and any SDK keys required. Timeline I need this live ASAP, so please outline how many days you require and any dependencies that could slow things down. When you respond, highlight relevant experience integrating biometrics or secure authentication in mobile apps.