SkinStack

Stop guessing which products work together. SkinStack builds your perfect skincare routine and warns you about ingredient conflicts before they cause breakouts. BUILD SMART ROUTINES - Add your skincare products with ingredients - Get automatically sorted AM/PM routines based on texture and category - Know the correct layering order: water-based first, heavy creams last DETECT INGREDIENT CONFLICTS - Retinol + AHA = irritation? We'll warn you - Vitamin C + Niacinamide = safe? We'll confirm it - 20+ built-in conflict rules covering common ingredients - Avoid-level (never mix) and caution-level (use carefully) warnings - Synergistic pair detection (ingredients that work better together) SCAN INGREDIENT LABELS (PRO) - Point your camera at any product label - Vision OCR automatically reads and parses ingredients - Add scanned ingredients to your products instantly WAIT-TIME TIMER (PRO) - Know exactly how long to wait between products - Different wait times for different textures (60s for serums, 5min for oils) - Push notification when it's time for the next step SKIN JOURNAL (PRO) - Track your skin condition daily with emoji ratings - Log concerns like breakouts, dryness, redness - See your skin improvement trend over time - Connect products used to skin condition changes ONE-TIME PURCHASE, NO SUBSCRIPTION - Free: 3 products, basic conflict detection - Pro: $4.99 one-time — unlimited products, scanner, timer, journal - No recurring charges. Ever. WHY SKINSTACK? - 100% offline — your data stays on your device - No accounts, no tracking, no analytics - Built by skincare enthusiasts who got tired of guessing - One-time purchase beats monthly subscriptions Your skincare routine should work for you, not against you. Download SkinStack and start building smarter routines today.