Privacy-first ad blocker, made in Japan

Annoying mobile ads,
blocked for good.

Full-screen ads, stubborn pop-ups, adult ads — Phone Guardian wipes out the web ads cluttering your browser, all at once. Install it and tap “Start”. That’s it.

Get it on Google Play For Android3-day free trial, every feature
Made in Japan No personal data collected No ads inside the app
Now on Google Play Phone Guardian is available on Google Play, with a 3-day free trial. An iOS version for iPhone and iPad is in preparation.
Get it on Google Play
390K+
blocked ad and
scam-site domains
1 minute
install and tap Start
no tricky setup
$1.99 once
3-day free trial
no subscription
$0
zero ads inside
the app itself
PROBLEM

Fed up with ads like these?

You open an article and it’s buried under ads. Phone Guardian cuts that stress off at the source.

Ads fill the whole screen, and you can’t read the article you came for.

The “close” button is tiny, so you tap the ad and get whisked to another page.

Crude and adult ads show up uninvited, and it’s unpleasant.

Ads quietly eat into your mobile data without you noticing.

BEFORE / AFTER

From ad-cluttered to clean.

Install it and tap “Start”. Your usual browser stays the same — only the ads disappear.

Without Phone Guardian
9:41
news-site.com/article
AD▶ tap opens another page
AD
[PR] Easy money from home
With Phone Guardian
9:41
news-site.com/article
Ad blocked
FEATURES

What Phone Guardian does

What it does best

Blocks the annoying web ads in your browser, right at the doorway.

Using a list of over 390,000 ad and scam-site domains, it cuts the connection before the ad can even load. Your usual browser keeps working as is — no settings to change.

  • Stops full-screen ads and pop-ups that open on their own
  • Blocks adult ads and connections to shady fake-alert sites
  • With ads gone, you save mobile data too

Monthly report

See how many ads it removed this month — in plain sentences, not a wall of numbers.

Memory cleaner

Stops apps you’re not using to free up memory (RAM).

Everything on-device

All processing happens inside your phone. The sites you visit and the contents of your traffic are never sent anywhere.

It targets ads on websites viewed in a browser. Ads inside other apps, such as games, are out of scope.

ALWAYS UP TO DATE

New ads? Handled automatically.

New ads appear every day. Phone Guardian’s block list keeps itself up to date — you don’t have to do a thing.

Fresh list, automatically

The block list keeps up with newly appearing ads through automatic updates.

Nothing for you to do

No update chores, no maintenance. Just keep it installed and it stays current.

Always protected

It quietly keeps blocking even the newest ads. Peace of mind, around the clock.

EASY FOR EVERYONE

Big buttons, big text.
Easy for every generation.

No tricky settings. Just tap one big button. From kids to grandparents, anyone can use it right away.

Big buttons

Large tap targets, so you never fumble.

Big text

Clear, readable lettering throughout.

Simple setup

Install it and tap “Start”. That’s all.

For all ages

From grandkids to grandparents.

Phone Guardian’s actual settings screen with large tile-style menus
The actual settings screen
MEMORY CLEANER

Ad blocking, with a memory cleaner included.

Phone Guardian also ships with a memory cleaner. It stops apps you’re not using and frees up memory (RAM).

One tap, and your phone feels lighter.

It stops the apps you’re not using right now and increases free memory (RAM). No tricky steps.

  • See free memory and its status at a glance
  • Choose which apps to clean (keep your favorites out of it)
  • Finishes with a friendly “All clean” message
Phone Guardian’s actual memory cleaner screen showing free memory and the All clean message
The actual memory cleaner screen
HOW TO

How to use it — that’s all

1

Install

Get “Phone Guardian” from Google Play.

2

Tap “Start”

One tap on the big blue button, then “OK” on the confirmation screen.

3

Forget about it

Phone Guardian quietly keeps removing ads, and reports its work every month.

Put it on your parents’ or grandparents’ phone and there’s nothing to teach.
It just works, as “that app the grandkids installed”.

PRICE

Price

Try every feature free for 3 days. To keep using it, make a one-time purchase — that’s all. No monthly or annual fees, no auto-renewal.

3-day free trial included — nothing is charged during the trial. It’s a one-time purchase: no monthly or annual fees and no auto-renewal. With the same Google account, one purchase also covers phone upgrades and your other devices. The exact price in your local currency is shown on Google Play. Due to the nature of digital goods, refunds for change of mind after purchase are not accepted.

FAQ

FAQ

The same content as the FAQ inside the app.

Q. What does this app do?

It blocks the ads shown in your browser apps, all at once. Pages load faster and become easier to read, and because trackers are blocked too, it also saves mobile data.

Q. How does it stop ads?

It blocks connections to the domains that serve ads and trackers at the “DNS” doorway. Everything happens on your device; the contents of your traffic are never sent to any outside server.

Q. Which devices can I use it on?

Android phones and tablets. An iOS version for iPhone and iPad is in preparation.

Q. Why does it need VPN permission?

To make DNS blocking work in every browser, it uses a “local VPN” that runs entirely inside your device. It never connects to any outside VPN server, and the contents of your traffic never leave your device.

Q. The guard sometimes stops on its own.

Only one VPN or ad-blocking app can run at a time, so using another such app can disconnect Phone Guardian. If your device’s battery optimization keeps stopping it, excluding Phone Guardian from battery optimization will make it stable.

Q. Ads are not disappearing.

This can happen when the guard is off, when old pages remain in the browser cache, or when the browser’s “Secure DNS (encrypted DNS)” is enabled. Turn the guard on, clear your browser cache, and check your browser’s Private DNS settings.

Q. Some ads don’t disappear.

Phone Guardian focuses on removing web ads. It never removes ads inside apps such as YouTube or games. Ads that can only be removed with a paid membership are also out of scope. In addition, ads served from the same domain as the site itself, or embedded directly in videos, cannot always be stopped by DNS blocking alone.

Q. Blank spaces are left on pages. Can they be removed?

A blank space is where an ad used to be — proof that blocking is working. The layout may look slightly shifted, but no ad is displayed there.

Q. Why is the blocked count higher than the ads I actually saw?

Phone Guardian also stops invisible trackers and background connections. A single ad can trigger several connections, and each one is counted, so the number grows quickly.

Q. Is there a dedicated browser?

No. Phone Guardian is not tied to any particular browser — it blocks ads in the browser you already use. We have no plans to make a dedicated browser.

Q. Does it cost money? Is it a subscription?

It is not a subscription. You can try every feature free for 3 days. To keep using it, make a one-time purchase (pay once — the price is shown in your local currency on Google Play). Once purchased, you can use it forever with no further payments. With the same Google account, it also works after switching phones and on your other devices.

Q. What’s the difference between free and purchased?

There is no difference in features. During the free trial and after purchase, everything works exactly the same. We simply ask you to make the one-time purchase if you wish to continue after the trial — nothing is added or restricted.

Q. Do you collect personal data or browsing history?

No. Ad detection happens entirely on your device; we never collect your browsing activity or send it anywhere.

Q. Does it save mobile data?

Yes. Blocking ads and trackers reduces the data used per page. The more ads a site has, the bigger the savings.

Q. Can my family use it on their devices?

Yes. With the same Google account, one purchase covers your other devices and phone upgrades. Devices on different Google accounts each need their own purchase. Every device can start with the free trial first.

Q. Where do I report problems or send requests?

Use the contact form below (the app’s “Contact us” opens the same form). Please enter your name, email address, and message. We will reply to the email address you provide.

CONTACT

Contact

Questions and requests are welcome. Please fill in your name, email address, and message.

Phone Guardian’s actual Device info screen

When reporting a problem, attaching the contents of “Settings” → “Device info” in the app (long-press to copy) helps us investigate quickly.

Your message is used only to respond to your inquiry. See the Privacy Policy for details.

An ad-free phone, starting now.

3-day free trial, every feature. Install it and tap “Start”.

Get it on Google Play Google Play and the Google Play logo are trademarks of Google LLC.