I'm the dev. SYE is free on the App Store, but Premium unlocks unlimited scans, recall alerts, and family profiles. I have a stack of free Premium promo codes I'm handing out here. Drop a comment and I'll DM you one until they run out.
Allergen detection (what I worked hardest on):
- No false "may contain" alerts. Manufacturer trace warnings show as a small info note, never a red block. Most allergy apps red-flag every "may contain". Mine doesn't.
- Per-allergen severity. Mark each as anaphylaxis, intolerance, or sensitivity. The banner color, the score, and the urgency cascade from there.
- Compound nouns handled. "Noix de coco" doesn't fire as walnut, "lait de soja" doesn't fire as dairy, "manteca de cacao" doesn't fire as milk.
- Negation works. "Peanut-free", "sans gluten", "sin lactosa" properly suppress.
- Oral Allergy Syndrome (opt-in). Birch pollen triggers warnings on raw apple, hazelnut, cherry, with a cooked-form override so apple sauce doesn't fire.
- All matching runs on-device. No scan history leaves your phone.
Beyond the scan:
- EpiPen expiry tracker. Set your pen's expiry once. The home screen banner stays silent until you're within 5 days or already expired, then it nags you until you replace it. No alert fatigue, no missed refill.
- Reaction log. Logged a reaction? Pick the severity (mild / moderate / severe / anaphylaxis), what you did (antihistamine / EpiPen / ER), and which products you scanned in the 4 hours before. Browse the full history from the home toolbar. Tap any log to see the linked products. Read-only by design so the data stays clean.
- Reaction correlation engine. On-device set intersection across your reaction logs. Surfaces patterns like "3 of your 4 reactions involved sodium caseinate but not whey" when there's actually signal. Pure local computation, no AI, no upload.
- FDA + CFIA recall daemon. Daily background check, intersects against your scan history locally, push notification if anything you've scanned gets recalled.
- "Find safer alternatives" searches the web live. When a scan blocks, tapping the button searches live for currently-sold products that avoid your specific allergens, with citations and region info.
- Image Allergen Detection. No barcode? Photo a homemade plate or restaurant dish and the AI infers allergens. Has an explicit "less precise than barcode" disclaimer above and below.
- Aisle scanner. Photo a grocery shelf, get a ranked list of products with safety badges.
- Restaurant menu scanner. Photo a menu, dishes get safe / check-with-server / avoid badges. For nut/wheat/shellfish anaphylactic users, fried dishes auto-upgrade to caution because of shared-fryer cross-contact.
- Caregiver share card. Plain-text "ALLERGEN CARD" with allergens and EpiPen expiry. AirDrop or Messages it to a babysitter, school, or restaurant.
- Family profiles. Separate allergen lists per kid, switch with one tap, all CloudKit-synced.
Trilingual (EN/FR/ES), 28 allergen families across 220+ derivatives.
Comment below for a free Premium code. First come, first served. Honest feedback (especially false positives or missing allergens) is the price.
u/Beforeidie- — 9 days ago