Know if it fits before it hits your cart.
A clear Great Fit to Skip verdict on any grocery, scored to your goal. Plus a diet and allergen guard.
Everything you need to
decide in five seconds.
No squinting at labels. No macro math in the aisle.
A verdict on every scan
Scan a barcode for an instant Great Fit to Skip verdict, scored against your personal goal. No barcode? Snap the label on supported iPhones, or type it in — same full verdict, no logging.
Allergen & Diet Guard
Set your allergens and diet once. Every product is flagged the moment it breaks your rules.
A pantry that remembers
Track what you already have, add an expiry date, and get a quiet nudge before it runs out.
Plus a whole-cart summary
A bonus on top of per-item verdicts: see your whole basket scored, macros, sodium, sugar, and allergens, before you check out.
No account. No tracking.
Nothing about you leaves your phone.
No sign-up, no tracking, no data selling. Everything you scan and save stays on your device. Full stop.
Questions, answered.
01How is this different from a calorie tracker like MyFitnessPal?
MacroCart is a decision tool, not a food diary. Instead of logging every meal after you have eaten it, you scan a product on the shelf and get one Great Fit to Skip verdict against your goal, allergens, and diet, before it ever reaches your cart. No diary to fill in, no calorie counting, no guilt, just a straight answer in about five seconds.
02What if a product isn’t in the database?
It still works. On supported iPhones, snap the Nutrition Facts label and MacroCart reads the numbers on-device with Apple Intelligence; on iPhones without it, type the numbers in by hand. Either way you get the same full verdict and it is saved for next time.
03How do allergens and diet work?
Set your allergens and diet style once. Every scan is checked against them first, so anything that clashes, say chicken on a pescatarian diet or milk if you are allergic, is flagged before the macro score and can never read as a good pick. Always confirm with the actual label for serious allergies.
04How does the AI work?
The verdict, macro scoring, and the diet & allergen guard are fully deterministic and run on every iPhone — no AI, no server. The optional AI extras (richer explanations, smart swaps, meal ideas, and Snap-a-label) run on-device with Apple Intelligence, so they need an iPhone 15 Pro, the iPhone 16 family, or later, on iOS 26+. On other iPhones those extras are simply hidden — everything else works exactly the same.
05How are macros scored?
Each product starts at 100 and is adjusted against your personal targets, protein, sugar, sodium, fiber, calories and more, weighted by your goal. The result is one 0 to 100 score and a plain-English verdict. Tap “Why this score” to see every point added or removed.
06Does it work offline?
Mostly. Snapping labels, your pantry, and saved verdicts all work offline. Looking up a brand-new barcode needs a connection.
07What happens to my data?
It stays on your phone. There is no account and no server collecting your scans, pantry, or goals, and nothing is sold or shared.