Calls, sites, SMS, apps, device.
Five guards in one。

It watches the doors scams come through: calls, sites, SMS, apps and the device. It stops the kinds of calls used in scams, stops connections to dangerous sites, checks the links in messages you receive, checks for suspicious apps, and confirms how well your device is prepared.

No. Virus scanning is already performed daily on every Android device by Google Play Protect. This app focuses on what that does not cover: keeping you out of scams.

According to figures published by the National Police Agency of Japan, about three quarters of the phone numbers used in special fraud are numbers from abroad. If you do not usually take calls from abroad, it is safer to stop them. If you have family abroad, you can choose just that country under “Countries that always come through”.

The initial setting is “Do not let it ring, but keep a notification”. The fact that someone called remains in the notification and in the “List of stopped calls”, so you can call back if you need to. Calls from people in your contacts, and from numbers or countries you have set to always come through, ring whatever the setting is.

To stop dangerous sites in every browser, it uses a mechanism that runs inside this phone only (VPN). It never connects to another company's network, and the contents of your traffic are never sent outside.

No. It never touches the content of your calls, the text of your messages, or what is on the pages you look at. Calls are told apart by the number alone and sites by the name of the destination alone, and both finish inside your phone.

Yes. Most sites that show fake warnings are stopped by the list of dangerous sites. And if you do end up calling a number shown on such a screen, the call is cancelled just before it connects.

Yes. Go to Settings, then “Watch settings”, then “SMS link check”, and paste in the whole message you received, or share the message to this app. The app finds the links inside the message so you can check them before opening. There is no need to pick out the links yourself. The app never reads the message on its own.

The call watch only works at the moment a call comes in, so it uses almost no battery. The site watch is a light mechanism that looks only at the entrance of each connection, and it never touches the contents of videos or anything else.

Only one site-watching mechanism can run on a phone at a time. If you use a VPN app from another company, the site watch may be cut off. (Phone Guardian Ad Block is the exception: the roles are shared and both work at the same time.) Also, if your phone's power saving stops the app, excluding it from power saving will keep it stable.

It is not a monthly plan. First you can try every feature free for 3 days. To keep using it, please buy it outright (a single payment of 300 yen). Once you have bought it, you can use it for good with no further charges. With the same Google account there is no need to buy it again after changing phones — just tap “Use on this device” on the purchase screen of the new phone. Note that it can be used on only one device at a time.

Nothing. The features are exactly the same during the trial and after purchase. The purchase simply lets you continue after the free trial ends.

No. Every judgment finishes inside your phone. The content of your calls, the pages you look at, your contacts and the results of any check are never sent outside. Please see the Privacy Policy for details.

Phone Guardian Ad Block is an app that removes annoying ads so pages are easier to read; this app is one that keeps you from falling victim to scams. You can use both on the same phone. Because only one site-watching mechanism can run on a phone at a time, when both are installed on the same phone Phone Guardian Ad Block takes the site watch, and this app takes calls, SMS, apps and the device. Sharing the roles this way, the two apps work at the same time.

Yes. However, one purchase can be used on only one device at a time, so if members of your family are to use it on their own devices at the same time, please buy it for each device. When you change to a new phone yourself, there is no need to buy it again: with the same Google account, just tap “Use on this device” on the purchase screen of the new phone and it moves over with no further payment (it then stops on the previous device). Every device can start with the free trial.

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They cannot be used together. Android allows only one mechanism that watches traffic (VPN) to run on a phone at a time, so starting another ad blocker or VPN app stops the site watch in this app.
Our own Phone Guardian Ad Block is the one exception. When both are installed on the same phone, the roles are divided automatically — Phone Guardian Ad Block takes the site watch, and this app takes calls, SMS, apps and the device — so the two never compete for the mechanism. If you would like both annoying ads and scams stopped, we recommend Phone Guardian Ad Block.