Smartphone Guardian - Ad Blocker | 3 Days Free · One-Time Purchase ¥300 (Tax Included) · Compatible with iPhone/iPad/Android

"Smartphone Guardian - Ad Blocker" is an app that blocks advertisements on websites you view in your browser.

You can use it on both iPhone/iPad and Android.

You can continue using your regular browser as usual.

App Store で無料で試す（iPhone・iPad）

Google Play で無料で試す（Android）

Available on iPhone, iPad, and Android

• iPhone: iOS 15.0 or later
• iPad: iPadOS 15.0 or later
• Android smartphones and tablets: Android 10 or later

The app is distributed in 41 countries and regions for Android, and 40 countries and regions for iOS.

The app is available in 15 languages.

The language automatically switches based on your country and region.

What it can do

• Blocks ads that cover the screen.
• Blocks pop-ups that open automatically.
• Blocks ads you don't want to see.
• Blocks fake virus warnings and scam alerts such as fake prize notifications.
• The list of ads and dangerous sites to block exceeds 830,000 items.
• The list is automatically updated every day.
• You save data (gigabytes) for every ad that is blocked.
• Displays the number of ads blocked this month and the amount of data saved in text format.

Storage size is 2.0MB for iPhone and iPad, and approximately 1.2MB for Android

The Android figure is the download size for each device.

The median storage size among 57 similar apps on the App Store is 43.5MB (as of November 5, 2026, based on Apple's public data).

Among the 57 apps, only 1 app had a smaller storage size than Smartphone Guardian - Ad Blocker.

Browser, VPN, and video apps were excluded from the comparison.

Android apps cannot be compared using the same method, so they were not included in the comparison.

How to use

After installation, follow the on-screen instructions, grant permission on the confirmation screen, and press the large button.

There are no complicated settings.

You can choose from 5 text sizes and 3 brightness levels for the screen.

We do not collect or send your browsing information to external parties

We do not collect information about the pages you visit or the content you enter.

There are no ads whatsoever within the app.

Pricing

Downloading the app is free, and you can use all features for 3 days.

In Japan, if you wish to continue using it, you only need to make a one-time payment of 300 yen (including tax).

There are no monthly fees, annual fees, or automatic renewals.

Prices outside Japan are determined for each country and region.

If you use the same Apple ID or Google account, you do not need to repurchase the app when changing devices.

You can use it on only one device at a time.

Since the Android version and iPhone version are separate apps, you need to purchase each one separately.

Some ads cannot be blocked

• Ads within apps such as YouTube and games are not eligible for blocking.
• Ads that cannot be removed without becoming a member are not eligible for blocking.
• Ads from the same source as the website itself or ads embedded directly in videos may not be blockable.
• Since blocking is based on a list, not all ads can be removed.

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