Live
ShelfTag for groceries
The iPhone app. Every weekly ad near you, one list, one cheap trip.
Grocery prices from every store near you
Shop every store at once.
Every weekly ad near you in one app. Find the lowest price on what you buy and the cheapest way to shop it.
Works with the stores you already shop
Real ShelfTag app screens. Prices from weekly ads near Mount Laurel, NJ, late October 2026.
Seven stores.
Seven prices.
One dozen eggs.
Or one list
that did
the math.
Sample prices for illustration.
Compare
Every shelf, side by side.
Pick a product. See what it costs at every store near you this week, per unit, and against its usual price.
- Best price · 2‑liter
- $2.0036¢ a can
- ShopRite · 2.3 mi · Price Plus price
- Under typical
- 36%
- Usually 55¢ a can
- ShopRite shelf price
- $3.89
- Without this week’s deal
Real ShelfTag app screens. Prices from weekly ads near Mount Laurel, NJ, late October 2026.
Real ShelfTag app screens. Prices from weekly ads near Mount Laurel, NJ, late October 2026.
Your list
One list.
Every store.
Add things from any store's ad. ShelfTag shows where each one is cheapest and what the whole trip costs.
Your stores
Your stores.
Your rules.
Star the places you shop. ShelfTag plans around them and keeps their store cards handy.
Real ShelfTag app screens. Prices from weekly ads near Mount Laurel, NJ, late October 2026.
Every store's ad, tidied
Each store opens on its best deals this week, then by department.
Star the stores you shop
They come first everywhere. The map shows what else is close.
Every store card, one place
Loyalty prices count, and the barcode is ready at the register.
Real ShelfTag app screens. Prices from weekly ads near Mount Laurel, NJ, late October 2026.
What's next
Groceries are live.
Everything else is next.
Same idea, everywhere you pay: know if it costs less somewhere else before you buy.
Coming soon
ShelfTag for your browser
Rides along on any store's site and tells you, as you browse and before you check out, when it costs less nearby.
Illustration: on a store’s product page, the ShelfTag extension shows the same item for less at another store nearby. In the cart, it lists the items that are cheaper elsewhere and the total you would save.
Sample prices for illustration. Not live retailer pricing.
Coming soon
ShelfTag in ChatGPT and Claude
Ask the chat app you already use where to shop. It checks this week's prices at your stores on ShelfTag.
Illustration: in ChatGPT or Claude, someone asks where eggs are cheapest near them. The chat app checks ShelfTag and answers with this week’s prices at their stores: Walmart has them for $2.79 this week, $0.50 less than Aldi.
Concept. Prices are illustrative; not affiliated with OpenAI or Anthropic.
Exploring
Beyond groceries
Rides, gas, prescriptions and takeout. Same question, new shelf.
Home to the airport, 14 mi
UberX$38.20
Lyft6 min awayBest$31.90- UberX Share$33.40
Concepts we're exploring. Prices are illustrative; no affiliation with these companies.
Early access
Your next grocery run is already cheaper.
We’re opening ShelfTag city by city. Join the list and we’ll let you know when it reaches your stores.
One email when we launch near you. No spam.