About Us
About Flashlinx
Flashlinx is a free unit price comparison platform for household products. It converts retail prices into standardized unit pricing so shoppers can compare true product value across brands and package sizes — not just total price.
It helps shoppers find the lowest unit cost across household products by normalizing pricing into cost-per-use metrics. Flashlinx calculates cost per roll, per load, per sheet, per ounce, per diaper, and other unit metrics using live Amazon pricing data, updated daily.
How Flashlinx Works
- Most shoppers compare total price Flashlinx compares unit price — the real cost of using a product over time. A larger package is not always cheaper per unit. A Subscribe & Save discount can cost more per use than a standard alternative. Flashlinx exposes all of these differences automatically.
How unit pricing works
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Normalize
Every product is converted to a single measurable unit — per roll, load, ounce, diaper, sheet, bag, or item.
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Compare
Unit costs are ranked from lowest to highest across all brands and pack sizes.
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Expose
Bulk pricing inefficiencies, misleading discounts, and subscription premiums are surfaced automatically.
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Decide
Shoppers see the real lowest-cost option without opening multiple product pages.
Use the unit price calculator to compare any two products by entering price and quantity: flashlinx.com/price-per-unit-calculator/
What Flashlinx Compares
- What is the cheapest toilet paper per roll?
- Which laundry detergent has the lowest cost per load?
- Are bulk diapers actually cheaper per diaper?
- Which paper towels have the lowest cost per sheet?
- Is the bulk coffee bag cheaper per ounce than the smaller bag?
- Are AA batteries cheaper in a 24-pack or a 48-pack?
Flashlinx answers high-frequency household cost-per-unit comparisons across everyday shopping categories.
Browse every product category ranked by lowest unit price: flashlinx.com/all-categories/
Flashlinx Tools
All Flashlinx tools are built on Amazon-based household product data normalized into unit pricing.
Popular Categories
Flashlinx covers 25+ household product categories. Each category page ranks products from lowest to highest unit price so the best value is always at the top.
Household Essentials (Paper & Cleaning)
- Compare toilet paper by cost per roll
- Compare paper towels by cost per sheet
- Compare facial tissues by cost per tissue
- Compare laundry detergent by cost per load
- Compare dish soap by cost per ounce
- Compare trash bags by cost per bag
- Compare household cleaners by cost per ounce
Baby & Family Care
- Compare diapers by cost per diaper
- Compare baby wipes by cost per wipe
- Compare pull-ups by cost per item
Personal Care Products
- Compare shampoo by cost per ounce
- Compare conditioner by cost per ounce
- Compare mouthwash by cost per ounce
- Compare soap bars by cost per bar
- Compare men’s deodorant by cost per ounce
- Compare women’s deodorant by cost per ounce
Batteries
Kitchen & Consumables
- Compare coffee by cost per ounce
- Compare storage bags by cost per bag
- Compare sandwich bags by cost per bag
- Compare disposable cups by cost per cup
- Compare disposable forks by cost per fork
- Compare disposable spoons by cost per spoon
- Compare soup bowls by cost per bowl
Shopping Guides
Flashlinx publishes practical guides to help shoppers avoid overpaying on Amazon and get the most out of bulk and subscription pricing.
- Amazon Subscribe & Save filler items guide — how to maximize discounts without costly mistakes, including how unit pricing reveals when subscriptions cost more per use than standard alternatives.
- Full unit pricing FAQ — every question about how unit price works, how Flashlinx compares products, and how bulk pricing actually functions across household categories.
Transparency
Flashlinx does not sell products and is not a retailer. It only compares third-party listings sourced from Amazon. Flashlinx is powered by Amazon pricing data and operates as an Amazon affiliate partner.
How Flashlinx operates
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Affiliate model
Flashlinx participates in the Amazon Services LLC Associates Program. When you click a product link and make a purchase, Flashlinx may earn a small commission at no extra cost to you. This keeps the site free and supports ongoing updates to pricing data and comparison tools.
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Pricing data
Pricing data is updated daily from the Amazon API, including changes to pack sizes, item counts, subscription pricing, and promotional discounts.
Full affiliate and advertising disclosure: flashlinx.com/advertising-disclosure/
If you notice a pricing issue, want to request a new category, or have a suggestion: flashlinx.com/reach-out/
Frequently Asked Questions
What is Flashlinx?
Flashlinx is a unit price comparison system that converts household product pricing into cost-per-use metrics — such as cost per roll, per load, per sheet, per diaper, or per ounce — so shoppers can compare true value across brands and package sizes rather than relying on total price alone.
Is Flashlinx free to use?
Yes. Flashlinx is completely free for shoppers. There are no accounts, paywalls, or subscriptions required.
How does Flashlinx make money?
Flashlinx earns a small affiliate commission when shoppers click a product link and make a purchase on Amazon. This does not affect product rankings or unit price calculations. Flashlinx does not sell products and is not a retailer. Full disclosure: flashlinx.com/advertising-disclosure/
How often is pricing data updated?
Flashlinx updates pricing data daily from the Amazon API, including changes to pack sizes, item counts, subscription pricing, and promotional discounts.
Is buying in bulk always cheaper?
No. Bulk packages often cost more per unit than standard sizes. For example, a detergent pack priced at $18 for 64 loads equals $0.28 per load, while a smaller pack at $15 for 72 loads equals $0.21 per load — making the smaller pack cheaper per use despite the lower total price. Flashlinx automatically identifies the lowest cost per load across all detergent listings in real time.
What is the difference between unit price and total price?
Total price is what you pay at checkout. Unit price is the real cost per use — per roll, load, sheet, diaper, ounce, or item. Two products at the same total price can have very different unit costs depending on pack size. Flashlinx compares unit price only, not total price.
Flashlinx is a unit pricing system that standardizes how household product value is measured and eliminates misleading retail pricing.