Shopping & Grocery List App

Cartner is the shared grocery list & shopping list app built for the way real households actually shop today. Whether you're coordinating a family shopping list, splitting groceries with roommates, or want a shopping list for couples that actually stays in sync — this is the grocery list app you've been looking for.

ONE LIST. EVERY PERSON. EVERY DEVICE.

Add an item on your phone — your partner sees it instantly on theirs. That's it. No refresh. No "did you save it?" texts. Our real time shopping list updates the moment anyone in your group adds, checks, or removes something. Sync shopping list across iPhone, iPad, Mac, and web — every device, every member of your household.

This isn't just another shopping list app. It's a true multi user grocery list designed from the ground up for the people who share the load.

BUILT FOR EVERY HOUSEHOLD

Couples — A grocery list for couples that ends the "we already have ketchup" arguments. The cleanest shopping list for couples in the App Store.
Families — Mom adds bread, Dad sees it, the kid checks it off after school. A real family grocery list and family shopping list the whole family owns.
Roommates — A no-drama roommate shopping list so nobody triple-buys olive oil.
Shared homes — Manage a full household list with unlimited members.

Whatever your setup, Cartner turns groceries into a true shared list — fast, fair, and friction-free.

MORE THAN A LIST — YOUR KITCHEN COMMAND CENTER

Grocery planner & meal planner — Plan the week, generate your weekly grocery list automatically.
Recipe shopping list — Save a recipe, send the ingredients straight to your shared shopping list.
Pantry list & pantry tracker — Know what's already in your kitchen before you buy it again.
Fridge tracker & inventory tracker — Track what's in your fridge, freezer, and cabinets so nothing expires unnoticed.
Budget shopping list — Set prices, track spending, stay on target.
Grocery checklist mode — Tap to check off, swipe to undo.
Supermarket list by aisle — Items auto-sort to match your store's layout, so you walk every aisle once.
Save weekly templates, custom categories, and your favorite items.

WHY CARTNER FEELS DIFFERENT
We built Cartner to fix what frustrated us about every other grocery list app out there:

Genuinely free core features — not a 7-day teaser
Real-time sync that doesn't lag for 30 seconds
A clean interface that isn't buried under ads
Works as a collaborative shopping list and collaborative list with unlimited members
Privacy-first — your groceries are nobody's business but yours

EVERYDAY USE CASES

Sunday meal prep an automatic food shopping list
A quick "share shopping list with partner" before they hit the store
A big-box bulk run with the shopping list with family ready to go
Daily grocery shopping errands without the back-and-forth texts
A shared grocery list that survives every move, every job, every life change

FEATURE HIGHLIGHTS

Real-time multi-device sync (iPhone, iPad, Mac)
Unlimited shared lists & unlimited members
Pantry & fridge inventory tracking
Recipe importer with auto-list generation
Meal planning calendar
Budget & price tracking
Aisle-sorted supermarket layout
Voice input, dark mode, widgets
Offline support — your list works without signal
Apple Watch, Siri, and Shortcuts ready

Privacy & Policy: https://docs.google.com/document/d/e/2PACX-1vQftOM0TqxPhC7QR54LeQwa7kes63hMtQsBjACnYrY8ekHdow1NXkRauRtg9_9rRVFbWh0tkf_nLW0W/pub
Terms of Use: https://docs.google.com/document/d/e/2PACX-1vQftOM0TqxPhC7QR54LeQwa7kes63hMtQsBjACnYrY8ekHdow1NXkRauRtg9_9rRVFbWh0tkf_nLW0W/pub