OnDose vs Synstax

Know what you're taking. OnDose organises your supplements by timing and absorption, flags interactions from published research, and tracks what you take each day. Not medical advice. Just clarity. — SEE HOW THEY INTERACT Add a supplement and instantly see what competes, what combines well, and what to separate. Every interaction in your stack is checked against published research. Severity levels from Info to Avoid, each with a cited source. Zinc blocks iron. Calcium competes with magnesium. Your morning stack might be cancelling itself out. OnDose catches it. — GET YOUR TIMING RIGHT Supplements are grouped into timing windows based on absorption science. Iron on an empty stomach, magnesium in the evening, competing minerals separated by two hours. OnDose builds your daily schedule so you don't have to think about it. — DAILY CHECK-IN Your daily schedule shows what to take and when. Check off each supplement as you go, build a streak, and look back at any day to see exactly what you took. Push notifications at each timing window keep you on track. — SCAN. DON'T TYPE. Point your camera at a product's UPC barcode. OnDose checks against 37,000+ supplements from DSLD, Open Food Facts, and major brands. Name, dose, and ingredients fill in automatically. Not in the database? Photograph the Supplement Facts label. Ingredients, doses, and serving size are extracted automatically. — ORGANISE YOUR STACK Add supplements, set doses and timing, and keep your full routine in one place. — YOUR DATA, ALWAYS Export your full supplement history, check-ins, and stack configuration as JSON or CSV. No lock-in. If you leave, your data leaves with you. — WHAT'S INSIDE • 350+ supplement compounds covered • 100+ interactions checked with cited sources • 37,000+ barcodes indexed • Timing recommendations based on absorption science • Daily check-ins with streak tracking • Push notifications for each timing window • Barcode scanning and label photo OCR • Full data export (JSON/CSV) — ABOUT THE DATA Interaction data is sourced from NIH Office of Dietary Supplements, EFSA, and peer-reviewed journals. Every interaction cites at least one published source. Absence of data is shown as "no known interaction data available," never as "safe." This app is for educational purposes only. It is not medical advice and does not diagnose, treat, cure, or prevent any disease. Always consult a qualified healthcare professional before making changes to your supplement regimen. — SUBSCRIPTION OnDose requires a subscription to use. 3-day free trial, then auto-renews monthly. Cancel anytime. Terms: https://ondose.app/terms Privacy: https://ondose.app/privacy

Synstax helps you organize supplement combinations, food effects, dosage, and timing in one place. SUPPLEMENT COMBINATION CHECKER Taking calcium with iron? Zinc with copper? Synstax reviews 5,142 curated combination records and explains timing considerations for each pair. • Insights appear as you add supplements • Clear importance levels and supporting context • Practical guidance on when to separate ingredients FOOD & SUPPLEMENT EFFECTS Recent coffee, tea, dairy, fiber, grapefruit, alcohol, soy, or spicy food can change the timing of a supplement routine. • 337 food-supplement rules across 8 food categories • Time-aware notes based on what you logged • Clear waiting guidance when a spacing interval is relevant INTAKE & DOSAGE TRACKING • Track recommended daily intake progress • Compare totals across products that share an ingredient • See upper-limit references and dosage notices AI LABEL SCANNER No barcode or product catalog required. • Photograph a Supplement Facts label • OCR + AI extracts ingredients and amounts • Matches 1,185 ingredient profiles and 12,000+ name variants • Recognizes brand and product names from the front label AI ANALYSIS & CHAT • Review product details, dosage context, and absorption notes • Ask questions about supplements, combinations, and timing • Receive context based on your products, schedule, and diet logs • Free tier: 30 AI queries per month. Pro: unlimited. SMART SCHEDULING • Organize supplements for morning, noon, evening, or bedtime • Build timing around combination and food-effect notes • Track daily intake and streaks BUILT FOR EVERYONE • 34 interface languages • Your records are stored on your device. AI features require internet access and send the relevant data for processing. • No account required Synstax Pro unlocks unlimited AI analysis and premium features. Synstax provides general wellness information and does not diagnose, treat, or replace professional advice. Consult a qualified professional before starting or changing a supplement routine. Terms of Use: https://synstax.uppervoid.app/terms Privacy Policy: https://synstax.uppervoid.app/privacy