Your personal grocery Price Book
Know what your groceries actually cost over time
InfinitelyZero's Price Book remembers the prices you've paid for products so you can see purchase history, spot price changes, and make more informed shopping decisions.
Your own observed prices and merchants—not a promise of universal live retailer data.
Price needs context
Was that actually a good price?
A sale sign means more when you remember what you normally pay. But brands, package sizes, changing prices, and trips to more than one merchant make memory unreliable.
Prices move
The amount you paid weeks ago may not match today's shelf price.
Variants differ
Brand and package size can make two prices look more comparable than they are.
Merchants vary
Your own observations can preserve where each price was recorded.
Memory fades
A dated history is easier to check than a vague recollection of the last trip.
Products with history
Build your own grocery price history
Keep the everyday product recognizable, preserve the specific version you purchased when useful, and attach each dated price to the merchant where you observed it.
Reusable product
Keep one recognizable product—such as coffee, milk, or toilet paper—as the item whose history you want to remember.
Purchased variant
Optionally distinguish the brand, package, size, or other specific version you actually saw or bought.
Merchant
Record where the observation happened so the price retains useful store context.
Observed price history
Keep dated price records so Latest, Lowest, Highest, purchase history, and the trend reflect your own observations.
Price trends
See when prices move
Compare a current observation with the product's recorded history. Latest, Lowest, Highest, purchase history, and the trend can help you recognize a meaningful change without predicting what the price will do next.
Recognize an increase
See when today's recorded price is above your own earlier observations.
Notice a lower price
Put a current discount beside what you have actually recorded before.
Merchant context
Remember where you found the better price
Price Book observations retain merchant context, helping you remember what you personally saw or purchased at different stores. It is personal history—not automatic store scraping, guaranteed availability, or a universal real-time comparison.
Useful question at the store
“How does this price compare with what I recorded for this product at this merchant—or somewhere else?”
Flexible input
Add prices as you shop
Record a shelf price manually, return to a saved product by barcode, or keep a selected observation from receipt review. Receipt scanning is one input method, not the center of Price Book.
Record a shelf price manually
Choose a saved product or create one, then enter the merchant, date, shelf price, quantity, and relevant variant details without needing a receipt.
Revisit a saved product by barcode
Scan a retail UPC or EAN locally to find an existing Price Book product or purchased variant, review its history, and add today's observed price.
Keep selected receipt observations
When receipt tracking is enabled, review eligible items and choose which confirmed product prices should enter your personal Price Book.
Receipt scanning is one way to add reviewed observations. See the Receipt Scanner Budget App for capture, extraction, identity review, and deliberate apply.
Scan receipts and review what you bought
A transaction list may stop at the merchant and total. InfinitelyZero prepares the receipt's merchant, date, total, and individual lines for review so you can correct the proposal before deliberately applying it.
Receipt image
Take a photo or upload
Extraction proposal
Merchant, date, total, line items
Review and apply
Correct before anything is saved
The receipt label remains evidence. First-time identity suggestions stay reviewable.
5 receipt scans per month are included. The optional Receipt Scanning add-on is $3.49 per month for 25 scans per month.
Planning cash between paydays too? See how to budget by paycheck. Prefer to manage finances without bank syncing? See how to budget without connecting a bank account.
The merchant-total problem
A $92 Walmart transaction doesn't tell you what cost $92
One store visit might include groceries, household supplies, toiletries, and other purchases. The total shows what left the account; reviewed receipt lines show what was inside that total.
Scan, review, confirm
From paper receipt to reviewed transaction data
Provider-backed recognition prepares information for you to inspect. You stay in control of the transaction, each extracted line, and the final apply.
Take or upload a receipt
Capture a receipt with the supported scanner or choose an existing image. Provider-backed extraction prepares a proposal; it does not save a transaction.
Review the transaction facts
Check the proposed merchant, date, total, account, category, and extracted line items against the receipt.
Correct item identity
Review first-time product suggestions, keep the raw receipt wording as evidence, and correct or leave unresolved anything uncertain.
Apply deliberately
Apply the reviewed transaction only when it is ready. Unresolved or Don't Track lines can remain on the receipt without creating product history.
Read the details in Receipt scanning.
Optional handoff after review
Receipt capture ends with a choice—not an automatic product history
When Price Book tracking is enabled, selected receipt lines with confirmed identities can create personal observations as the reviewed transaction is applied. Unresolved and Don't Track lines create no product, alias, or observation.
After confirmed receipt items are saved, use Grocery Price Tracker for product history, trends, merchant comparisons, and Shopping List reuse.
Useful beyond the total
Give real purchases more context
Propose the transaction
Bring the merchant, purchase date, total, payment details, and receipt evidence into one reviewable transaction proposal.
Inspect every extracted line
See the individual lines behind a mixed-store total and compare them with the receipt before anything is applied.
Keep identity reviewable
A first-time semantic suggestion can be corrected. Raw receipt shorthand stays evidence instead of silently becoming the reusable product name.
Leave uncertain lines unresolved
An unresolved or Don't Track line can stay financially represented on the receipt without creating a fake product, alias, or price observation.
Choose when to apply
The extracted result remains a proposal until you deliberately apply the reviewed transaction.
Review and control
Your receipt does not make decisions for you
No bank connection is required. Applied transaction and personal Price Book data follows your selected Local or Cloud storage mode. Optional receipt images are sent to an external provider for task-specific extraction, and the result remains a proposal until you review and apply it. Personal receipt and Price Book data is not automatically published.
Plan the next trip
Use what you've learned on your next shopping trip
Add a Price Book product to a Shopping List and optionally choose a preferred purchased variant. Known personal price history can add context while you plan, while unknown prices stay unknown rather than being silently guessed.
Price Book product
Your reusable item and optional purchased variants
Shopping List
Canonical product plus an optional preferred variant
Illustrative example
Give today's coffee price some history
Imagine you regularly buy the same coffee. These example values are illustrative—not live retailer data.
Previous observations
Current observed price
$7.99
Now you have context for whether $7.99 is unusually low compared with your own recorded history.
Helpful answers
Grocery price tracker FAQ
What is a grocery price tracker?
A grocery price tracker keeps records of what products cost at different times or merchants. It gives today's shelf price context by showing what you personally observed or paid before.
Can InfinitelyZero track grocery prices over time?
Yes. Each saved product can have multiple dated observations, allowing InfinitelyZero to show recent purchase history, Latest, Lowest, Highest, and a recorded price trend.
Can I track prices from different stores?
Yes. Price observations include merchant context, so your history can help you remember where you personally saw or paid different prices.
Can Price Book products be used in Shopping Lists?
Yes. You can add the canonical product to a Shopping List and optionally select a preferred purchased variant when variants are available.
Does InfinitelyZero show live prices from every grocery store?
No. Personal Price Book history reflects prices you recorded or confirmed, not comprehensive live retailer coverage. Prices and inventory should still be verified with the retailer.
What does a receipt scanner budget app do?
It turns a receipt image into proposed transaction facts and line-item detail you can inspect. In InfinitelyZero, extraction does not silently apply the transaction or decide which product identities to keep.
Can I take a photo or upload an existing receipt?
Yes. On supported devices you can take a receipt photo or choose an existing image. Receipt extraction is provider-backed, so scanning is not presented as a fully offline feature.
What receipt details can I review?
Review the proposed merchant, date, total, payment text, account, category, and individual receipt lines before applying the transaction.
Can I correct an item if the receipt scan gets it wrong?
Yes. First-time semantic product suggestions remain reviewable. The raw receipt label is preserved as evidence while you correct the canonical product, purchased variant, brand, or package details.
What happens when an item cannot be identified?
Leave it unresolved or mark it Don't Track. The line can remain part of the receipt and transaction without creating a fake canonical product, merchant alias, or Price Book observation.
Can reviewed receipt items be added to Price Book?
Optionally. When tracking is enabled, selected lines with confirmed identities can create personal observations when the reviewed transaction is deliberately applied. Grocery Price Tracker is the dedicated workflow for using that history.
For details about personal observations and Shopping Lists, read the Price Book documentation.
Stop relying on memory at the grocery store
Build a Price Book from the products you actually buy and keep your own history of what things cost.