"Shopping Calculator" is a popular calculation app that lets you easily find out which product, A or B, is cheaper, and the post-discount price of products marked with "○ discount."

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●Over 220,000 downloads! (※) The definitive price comparison app!

●This app was featured in the October 2023 issue of Takarajimasha's "Steady" magazine!

●Ranked #2 in "Calculators for Comparing Bargains"!

●This app ranked #2 in "Calculators for Comparing Bargains" on the smartphone app review site "Appliv"! (As of April 23, 2023)

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●3 calculation modes + calculator + shopping list, all in one.
In addition to price comparison, discount calculation, and 100g price calculation functions, it also features a calculator and shopping list.

Easily switch between calculation modes with the press of a button in the footer.
You can operate the app quickly even when you can only operate it with one hand while holding the shopping cart.

●Price Comparison
Compare products A and B to see which is cheaper.
For example, you can quickly determine which is cheaper: 5 boxes of 180 tissues at ¥298 or 5 boxes of 160 tissues at ¥249.
The Premium version also allows you to compare the prices of three products, including product C.

●Discount Calculation
Check the discounted price of products marked with a ◯ discount or ◯% off.
Entering "30% off" on "¥7,980" will display "¥5,586 (¥2,394 off)."
Single-digit discount values are automatically interpreted as "discount," while double-digit values are automatically interpreted as "% off," allowing for quick operation.

●100g Price Calculation
The price per 100g of meat, seafood, etc. may not be displayed. This calculation mode lets you easily find the price per 100g by simply entering the price and weight.

● Lowest Price/Market Price Search
Easily cross-search for the lowest prices on Amazon, Rakuten, and Yahoo! Shopping!
You can also scan the barcode on a product to instantly find the market price.
It also randomly displays items on sale that day. You're sure to find a bargain.

● Calculator
A simple built-in calculator function is included. This is convenient for adding up the prices of items in your cart one by one.

● Shopping List
Write a list of items you want to buy. With the same simple operation as a to-do app, you don't have to open a separate notes app just to view your shopping list.

● One-Handed Design
When holding a shopping cart, it's difficult to use both hands to operate your iPhone. This design makes it convenient to use even in such situations.

● Reduced Tax Rate Support
When displaying the discount amount and price per 100g, the prices for 8% and 10% consumption tax are displayed simultaneously. No need to press a button to switch between tax rates.

●Get even more convenience with the Premium version!
This app offers many of the great features listed above for free, but purchasing the paid Premium version unlocks even more useful features.
• 3-item price comparison mode
• Microwave wattage conversion (instantly calculates microwave heating times when using a different wattage than the listed cooking time)
• Display unit price
• Feature selection and sorting
• Shopping list sharing
• Ad-free viewing

Enjoy smart and cost-effective shopping with this app!

●Supported Languages
This app is available in Japanese only.

※About the survey methodology and results for the "220,000 downloads" claim
As of 12:00 PM on March 13, 2025, this data was collected by our research. Based on the number of new devices acquired on the Google Play Store and the number of first-time downloads on the Apple App Store. 80,498 downloads on Android, 143,987 downloads on iOS, for a total of 224,485 downloads.