# Synstax: Interaction Checker — Supplement Interaction Check > Smart supplement interaction and diet absorption tracker with AI label scanning. (iPhone/iPad app by 宁 丁.) - Source: https://appshunter.io/ios/app/synstax-interaction-checker/id6760453147 (this page in markdown: same URL + `.md`) - Developer: [宁 丁](https://appshunter.io/developer/1848762948) - Category: Health & Fitness, Lifestyle - Price: Free with in-app purchases - Rating: 5.00/5 from 1 App Store ratings · 1 written reviews indexed - Age rating: 4+ - Requires: iOS 17.0 · 151 MB - Languages: American English, Arabic, Catalan, Croatian, Czech, Danish, Dutch, Finnish, French (France), German (Germany) and 23 more - Released: 2026-03-20 - Data updated: 2026-08-11 - Monetization: freemium - User reviews in markdown: https://appshunter.io/ios/app/synstax-interaction-checker/id6760453147/reviews.md ## What is Synstax? 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 supplement data stays on your device • 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 ## Key features - Supplement combination checker - Diet-supplement absorption insights - AI-powered label scanner - Smart intake tracking - AI analysis and chat - Personalized scheduling ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Synstax Pro | $29.99 | per year | | Synstax Pro | $4.99 | per month | **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Synstax Pro Lifetime | $69.99 | one-time | ## Recent user reviews (1 of 1) All indexed reviews: https://appshunter.io/ios/app/synstax-interaction-checker/id6760453147/reviews.md ### 5/5 — Simple and actually useful *2026-03-28* Been using it for a week to organize my supplements routine.The conflicts checked caught a coupe things I don't know about.Clean interface no ads does what it sya.the AI analytics is great.Would be great if it could sync data across devices. ## Frequently asked questions about Synstax ### What is Synstax? Synstax is a smart timing and intake tracker designed to help you manage your supplement routine. It checks for interactions between supplements and how your diet affects their absorption, offering research-backed timing recommendations. ### Does Synstax have ads? No, Synstax is ad-free, allowing for an uninterrupted user experience as you manage your supplement intake and track interactions. ### How does Synstax's AI label scanner work? The AI-powered label scanner uses OCR and AI to instantly extract and identify ingredients from any supplement label, even without a barcode. It matches against a vast database of active ingredients and recognizes brands and product names. ### What kind of diet insights does Synstax offer? Synstax tracks how specific foods and drinks like grapefruit, caffeine, dairy, and spicy food can affect supplement absorption. It provides smart timing tips based on these diet-supplement rules. ### What are the subscription options for Synstax Pro? Synstax Pro offers unlimited AI analysis and premium features. You can subscribe for $4.99 per month or $29.99 per year, with a 7-day free trial available for the annual plan. ### How accurate is Synstax's supplement combination data? Synstax checks over 5,142 supplement combinations based on research-backed nutrition data. It categorizes interactions from minor to important, providing clear insights and timing recommendations. ### Is Synstax available on multiple devices? Currently, Synstax is supported on iPhones. The app was last updated on June 24, 2026, with version 1.5.3. ### What is the age rating for Synstax? Synstax has an age rating of 4+, making it suitable for a wide range of users interested in managing their health and wellness routines. ## Version history (last 5 releases) ### 1.5.5 — 2026-08-09 Version 1.5.5 improves the core supplement workflow. - Ingredient details now open reliably from product pages. - Clearer conflict rows and detail navigation. - More reliable dosage conversions and overnight food-timing calculations. - Smoother add, scan, diet log, AI, and subscription flows. ### 1.5.4 — 2026-07-20 This update improves the core supplement workflow and overall reliability. - Smoother flows for adding supplements, scanning labels, logging diet, and managing subscription entry points. - Improved stability across Today, Supplements, Conflicts, and Settings. ### 1.5.3 — 2026-06-24 This update focuses on everyday polish and faster access. • Added a Today widget so you can see your next supplement and daily progress from the Home Screen. • Added Home Screen Quick Actions for adding supplements, logging food or drink, opening Supplements, and checking Conflicts. • Improved AI Chat presentation so guidance is easier to scan and timing advice is clearer. • Polished label scanning and product analysis flows for smoother review of ingredients, dosages, brands, and warnings. ### 1.5.2 — 2026-06-10 This update focuses on everyday polish and faster access. • Added a Today widget so you can see your next supplement and daily progress from the Home Screen. • Added Home Screen Quick Actions for adding supplements, logging food or drink, opening Supplements, and checking Conflicts. • Improved AI Chat presentation so guidance is easier to scan and timing advice is clearer. • Polished label scanning and product analysis flows for smoother review of ingredients, dosages, brands, and warnings. ### 1.5.1 — 2026-05-20 This update focuses on deeper reference content, clearer timing guidance, broader language support, and subscription management. Ingredient detail coverage has expanded from 26% to 94%. 1,110 ingredients now include detailed profiles covering mechanisms, common use cases, and absorption tips, helping you understand how each supplement fits into your stack. Interaction spacing coverage has expanded from 25% to 91%. 4,697 supplement interaction pairs now include recommended separation times, making it clearer which supplements should be taken apart and by how many hours. Language support has expanded from 18 to 34 languages, adding Catalan, Czech, Danish, Greek, Finnish, Hebrew, Hindi, Croatian, Hungarian, Dutch, Norwegian, Portuguese (Portugal), Romanian, Slovak, Swedish, and Ukrainian. Settings now includes subscription management, where you can view your current plan, open Apple subscription management, or restore purchases. ## More apps by 宁 丁 - [Soberly - Awareness & Growth](https://appshunter.io/ios/app/soberly-awareness-and-growth/id6754551643) - [Zenrain · Sutra Rain](https://appshunter.io/ios/app/zenrain-sutra-rain/id6756945441) - [Sketella AI Calendar Assistant](https://appshunter.io/ios/app/sketella-ai-calendar-assistant/id6771199625) - [RoninFrame](https://appshunter.io/ios/app/roninframe/id6780720583) All apps by 宁 丁: https://appshunter.io/developer/1848762948 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-11.*