ギガぞう Wi-Fi 高品質・安心・安全WiFi接続アプリ

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About this app

Save on data limits with high-quality carrier Wi-Fi and VPN-encrypted free Wi-Fi!

"GigaZo" is a membership service that offers unlimited use of high-security Wi-Fi services unique to a telecommunications carrier, including approximately 100,000 member-only Wi-Fi hotspots, primarily high-quality (EAP-TTLS) compatible spots in urban areas operated by Wi2, as well as secure use of free Wi-Fi thanks to Wi2's VPN function. All for a fixed monthly fee.

Choose the plan that best suits your needs: the easy-to-use "Smartphone-only plan," or the "Standard plan" which saves data usage through data compression during mobile communication, allows family ID sharing, and enables PC use.

GigaZo's Main Features
■ High-Security Wi-Fi Provision ■
Automatically connects to high-security Wi-Fi equivalent to carrier Wi-Fi in major restaurant chains such as cafes and family restaurants, as well as at train stations and on trains nationwide.

■ Secure VPN Connection with Encryption Even on Free Wi-Fi ■
Many free Wi-Fi hotspots are not encrypted, posing a risk of data breaches. GigaZo offers a VPN function that automatically encrypts your connection when you connect to free Wi-Fi hotspots, ensuring safe and secure use.

■ Save Data Usage Through Mobile Data Compression ■
Even when using mobile data, data usage is automatically compressed. This compression is particularly effective for video streaming, allowing for a more comfortable internet experience when combined with Wi-Fi connectivity.
*Not applicable to smartphone-only plans.

■ Compatible with Various Devices ■
Supports a wide range of Wi-Fi devices, including smartphones, tablets, PCs, and game consoles.

You can use up to 4 additional devices while keeping your existing GigaZo registered device.
*Not applicable to smartphone-only plans.

■ Billing Method
Billing will be charged to your Google account. Automatic renewal occurs monthly from the date of paid service registration. ■ How to Check Your Subscription Status and Cancel Automatic Renewal
1. Tap the "Play Store" app.
2. Tap your account (icon in the upper right corner of the screen).
3. Tap "Payments & Subscriptions".
4. Tap "Subscriptions".
From here you can check the next automatic renewal date and cancel automatic renewal.

■ About Automatic Renewal
Monthly paid services will automatically renew unless you cancel automatic renewal at least 24 hours before the end of the contract period.
Billing for automatic renewal will occur within 24 hours after the end of the contract period.

■ Cancellation for the Current Month
We do not accept cancellations for the current month of paid services.

■ Important Notes
・If you have been charged within the app, you cannot cancel by any method other than the one described above.
・If you use the Gigazou app to save mobile data (compress mobile data),
other companies' count-free services may not apply.
If you are using a count-free service,
please turn off mobile data saving.
*Notes on using other companies' data-free services < https://wi2.co.jp/personal/gigazo/faq-gigazo/service/start/000565.html >

*Gigazo Terms of Service
https://wi2.co.jp/rules/gigazo-kiyaku_v.html
*Application Privacy Policy
https://wi2.co.jp/personal/gigazo/appprivacypolicy.html

*The VPN function uses the VPN service provided by Google.
Updated on
Jul 24, 2026

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
Location, Personal info and 4 others
Data is encrypted in transit
You can request that data be deleted

What’s new

軽微な改修を行いました。
Content rating
Everyone
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App support

About the developer
WIRE AND WIRELESS CO., LTD.
cs-info@wi2.co.jp
6-2-1, GINZA DAIWAGINZA BLDG. 4F. CHUO-KU, 東京都 104-0061 Japan
+81 90-2058-7226