カイドク - バーコード検索・値札スキャンで価格比較

Have you ever wondered, when you find an item you like in a store, "What's the lowest price online?" or "Is it cheaper at another store?" "Kaidoku" is a convenient shopping support app that lets you compare prices from multiple online shops simply by scanning barcodes or price tags with your camera.

No charges. No registration required. No ads. Ready to use immediately after installation.

--Use "Kaidoku" to "decode" product barcodes and price tags and find the "best deal"--

When you find an item you like in a store,

- How much is it selling for online?

- Is the current price a good deal?

- Are other shops cheaper?


You can instantly check these questions.

[Price comparison by scanning barcodes or taking photos of products]

You can search simply by taking a photo of the product with your smartphone camera.


* Barcode Search: Simply point your camera at the barcode.
* Price Tag Search: Simply photograph the price tag on the product in the store.
* Image Search: Simply photograph the product or its packaging.

This allows you to compare product prices on Rakuten, Yahoo! Shopping, and other sites.

No tedious data entry is required.

* Direct text input is also possible for product searches.

[Price Tag/Product Label Reading Available]
By photographing the price tag, the app uses character recognition to read the product name, model number, JAN code, and price, and then searches for the product online.

This makes it easier to find products even if you don't know the model number.

[Product Estimation from Product Images Possible]
The app estimates the product from the photographed product (or product packaging) to assist with product searches.

[Direct Product Name/Model Number Search Supported]
Even for products with unreadable barcodes, you can search by directly entering:
* Product Name
* Model Number
* JAN Code

This is convenient for products where model number searches are effective, such as home appliances and computer peripherals.

[Compare Store and Online Prices]
Displays prices from multiple shops in a list, allowing you to easily check:

・Which shop is cheaper?

・How much is the price difference?

・What is the market price for the product?


[Save Search Results with Photos]
You can save your search results.

You can also add photos to the saved search results.

[Convenient Calculation Functions for Shopping]
Includes calculation functions you frequently use while shopping.

・Price per gram calculation

・Point calculation

・Split bill calculation

・Simple calculator

[Price per gram calculation]
Easily compare prices for products with different contents or capacities.

For example,

・Per 100g

・Per 1kg

Convenient for price comparisons.

[Point calculation]
Calculates the effective price considering point rewards and discounts.

・Point reward rate

・Points earned

・Effective price

You can check all of these together.

[Split bill calculation]
Convenient for settling payments for group purchases or bulk purchases.


* Specify the number of people
* Specify the ratio
* Supports reimbursement amounts


[Save Search Results and Calculation Results]

You can save search results and calculation results for products you're interested in.

This is convenient for reviewing later or comparing multiple products.

[Recommended for those who:]
* Want to compare prices before purchasing a product
* Want to compare in-store prices and online prices
* Want to know the lowest price estimate
* Want to check prices at electronics retailers
* Want to compare unit prices at supermarkets
* Want to compare prices including point rewards
* Want to simplify bulk purchase settlements
* Want to use it immediately without membership registration

[Usage Scenarios]
* Electronics retailers
* Supermarkets
* Drugstores
* Home improvement stores
* Bookstores
* Price comparison with online retailers

[Examples of Supported Products]
* Home appliances
* Games
* Smartphone-related products
* Computer peripherals
* AV equipment
* Daily necessities
* Outdoor goods
* Various other products


Kaidoku is a shopping support app that combines barcode search, price tag search, product image search, price comparison, and shopping calculation into one app.

We support your daily shopping in a more convenient and user-friendly way.