VectorShield
Alpha-Gal Safety Database
Free
Alpha-Gal Syndrome reactions are delayed, invisible, and hard to trace. They start 3-6 hours after eating -- long after you've forgotten what was on your plate. VectorShield is a safety reference database for people with Alpha-Gal Syndrome: search medications, browse restaurants, and keep a personal log of meals and vitals in one place.
MEDICATION SAFETY DATABASE
Many common medications contain mammalian-derived inactive ingredients -- gelatin capsules, magnesium stearate, bovine-sourced collagen -- that do not appear on the label. VectorShield checks a curated database of medication ingredients to flag possible Alpha-Gal triggers so you can review them before you take them. Emergency medication lookups (EpiPen, epinephrine) are always free.
RESTAURANT SAFETY DATABASE
Browse 377+ restaurants and 8,400+ menu items with Alpha-Gal safety ratings. See cooking fat disclosures, cross-contamination notes, and community-sourced reviews from other AGS patients. Find safe dining options near you on an interactive map.
MEAL LOGGING AND VITALS TRACKING
Log meals by voice, text, photo, or barcode scan. VectorShield reads your heart rate and HRV from Apple Watch and displays trends alongside your meal log -- giving you a personal reference record to review at your own pace. All processing runs on-device via CoreML; your Apple Watch vitals are never sent to our servers and never sold.
COMMUNITY
Connect with other Alpha-Gal patients. Share restaurant reviews, post safe recipes, follow other members, and learn from people who understand what you're dealing with.
BUILT FOR EVERY SENSITIVITY LEVEL
Alpha-Gal Syndrome is not one-size-fits-all. Some patients only avoid red meat. Others react to dairy, gelatin, or even trace amounts in medications. VectorShield lets you set your sensitivity level (1-4) so food analysis, medication warnings, and personal context are calibrated to your specific situation.
APPLE WATCH COMPANION
The Watch app runs independently with voice-first meal logging, vitals tracking, restaurant search, and on-wrist notifications. Log a meal by speaking to your watch without pulling out your phone.
PRIVACY FIRST
Your Apple Watch health data is processed on-device using CoreML and is never sent to our servers or sold. VectorShield does not track you and does not require an account for core safety features.
FREE FEATURES
- Meal logging with voice, photo, and barcode input
- 5 medication safety searches per day
- Vitals tracking via Apple Watch
- Community access
- Emergency medication lookup (always free)
PREMIUM ($2.99/month)
- Unlimited medication and food database searches
- Personal sensitivity calibration and extended history
- 365 days of history and trend analysis
- Offline database access
- Data export for healthcare providers
VectorShield is a safety reference tool, not a medical device. It is not intended to diagnose, treat, cure, or prevent any medical condition. All tracking and personal records are for informational and reference purposes only. Consult your healthcare provider for medical decisions. In an emergency, call 911.
Ratings & Reviews
This update is about accuracy in food and menu analysis, and about fixing the Community tab.
Food and menu analysis
- A tolerance you have recorded no longer lowers an item's rating unless that item's own ingredients are known. An item with no ingredient information now asks you to check with the restaurant instead of showing a guess.
- Fixed brand matching that treated ordinary words in a dish name as brand names, which produced ratings the ingredients did not support.
- Menu rows now log the same risk bucket they display.
Community
- Fixed a blank profile sheet, a spinner that never resolved, and a header that failed to load.
- Video posts now render in the feed.
- Post timestamps are readable instead of raw database values.
- Removed the seeded demo accounts and their content.
Apple Watch
- The app uses the VectorShield name throughout.
- Vitals history is available on the watch.
Account
- Account deletion now completes and returns you to a signed-out state.
The developer, Sam Hutcherson, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Health & Fitness
- Contact Info
- User Content
- Identifiers
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Location
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Sam Hutcherson
- Size
- 69.7 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 17.6 or later.
- iPhone
Requires iOS 17.6 or later. - Apple Watch
Requires watchOS 10.0 or later.
- iPhone
- Languages
- English
- Age Rating
13+
- 13+
- Infrequent
Medical Treatment information
Contains
User-Generated Content
Health or Wellness Topics
- Copyright
- © 2026 Sam Hutcherson
