株式取引アプリ - 「こい株」 -

1K+
Downloads
Content rating
Everyone
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About this app

"Stock Trading App -" Koi Kabu "-" is a Japanese stock trading app for Android provided by Hirogin Securities.
You can use spot trading/margin trading of domestic stocks within the application.

■Features of "Stock Trading App - 'Koi Kabu' -"
[Feature 1] Anyone can use it for free!
Anyone who has a general securities trading account with our company and who has applied for Internet trading can use it free of charge.
When you log in to the app, you can log in with your Internet transaction login ID and login password.

[Feature 2] Update stock price information in real time!
Get real-time updates on stock quotes.
* Some functions such as charts may be delayed.

■ 4 main screens
【transaction】
On the trading screen, you can check the order status and the status of holdings in addition to spot trading and margin trading. Since it can be operated by tapping the screen, anyone can easily trade.

[Market screen]
You can view market information such as domestic indices, overseas indices, exchange lists, and news. You can switch between tile display and list display, and rearrange the display order.

[Registered brand]
You can check each registered brand in a list. (Up to 180 stocks can be registered)
In addition, since it is shared with the stock price information trading tool "Stock Price Board" of Hirogin Securities Internet Trading, you can check market price information etc. on the smartphone app even when you are away from home for stocks registered from your PC.

[Stock search]
You can search by brand code or company name.
In addition, it is possible to search for rankings by rapid rise/fall and deviation rate.
On the issue details screen, you can refer to information such as board information, charts, credit margins, etc., and you can tap to transition to the order screen.

■ Notes
In order to use the "Stock Trading App - 'Koi Kabu' -", you will need to open a general securities trading account with Hirogin Securities and apply for online trading.

■ About maintenance
Perform system maintenance on a regular basis.
You cannot log in to the app during maintenance.
In addition, it is not available from 0:00 to 6:00 on Sundays and from 2:00 to 6:00 on Mondays to Saturdays due to maintenance.

■ Inquiries
Inquiries about "Stock Trading App - 'Koi Kabu' -" are accepted by phone or email.
Please contact the store or support dial by phone or email.
[Support dial]
0120-927-684 Toll free
Reception hours: Weekdays (Monday to Friday) 8:30 to 17:00 (closed on Saturdays, Sundays, and holidays)

■Risks and expenses related to transactions of financial instruments, etc.
When investing in financial products, etc., you may be required to pay a prescribed fee, etc. for each product. In addition, there is a risk of loss due to price fluctuations, etc. for each product.
Fees and risks differ for each product, so please carefully read the document delivered before concluding a contract, listed securities documents, prospectus, etc.

■ Provider company
Hirogin Securities Co., Ltd.
Financial instruments business operator China Finance Bureau Director (Kinsho) No. 20
Member Association: Japan Securities Dealers Association
Updated on
Nov 6, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Personal info, Financial info and 2 others
Data is encrypted in transit
Data can’t be deleted

What’s new

バージョンアップ対応を行いました。

App support

About the developer
久保一夫
kkmkrkyk@gmail.com
Japan