Is Mamori Safe? Mamori: Adult Content Blocker Privacy on iPhone and Android
Updated
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Short answer: Yes, in the sense of what it is and how it works: Mamori is a real app from a named developer, it needs no account, and this guide says plainly what it does and does not do so you can judge. The one big difference is how it filters: on Android the check happens on the phone, while on iPhone and iPad site lookups go over encrypted DNS to Mamori's filtering server. We make Mamori, so we have kept to facts you can check in the store listings, and we make no certification or guarantee claims.
Version note: Checked against the App Store and Google Play listings and the Mamori homepage on 9 Nov 2026. Prices are the US App Store prices that day and can change.
What Mamori is
Mamori is an adult content blocker for adults who want to block adult sites on their own phone. It is a newer app, available as:
- Mamori: Adult Content Blocker on the App Store, for iPhone and iPad. The App Store lists the seller as KAI YI TAY and the age rating as 18+.
- Mamori: Porn & Adult Blocker on Google Play.
Which phones it runs on
- iPhone: the App Store says "Requires iOS 16.0 or later."
- iPad: the App Store says "Requires iPadOS 16.0 or later."
- Android: the Google Play listing data shows Android 7.0 and up (app version 1.0.6, checked 9 Nov 2026).
So yes, Mamori works on iPhone, as long as it runs iOS 16.0 or later.
How filtering works: Android and iPhone are different
Both versions filter DNS, which is the lookup an app makes to turn a site name into an address. That is how one blocker can cover every browser and app on the phone. The two phones then differ.
On Android:
- Mamori uses Android's VpnService to check each lookup on the phone against a blocklist stored on the device.
- There is no remote VPN server, and lookups are not sent to Mamori.
- The blocklist itself is downloaded from Mamori's server so it can stay current.
- Names that are not blocked are passed on unchanged to a public DNS resolver, according to the Mamori homepage.
- Pages, videos and messages do not pass through Mamori.
On iPhone and iPad:
- Mamori uses Apple's encrypted DNS setting. You switch it on once in Settings > General > VPN, DNS & Device Management > DNS, and then the app controls it.
- Site lookups (the site names, not the page contents) go over encrypted DNS to Mamori's filtering server, which answers with a block for adult sites.
- Pages, videos and messages do not pass through Mamori. Only the DNS lookup does.
For more on how DNS filtering and VPN-style blockers differ, see DNS to Block Porn: Free Family DNS on Android, Step by Step and Porn Blockers and VPNs: How They Interact on Android and iPhone.
What the app does not do
From the Mamori homepage:
- No account. Mamori never asks for your name or email.
- No monitoring of what you do, and no reports or partner alerts. It is a blocker, not accountability software.
- No ads, no third-party analytics and no data sold.
- Not a tool for watching a child's phone. It is built for adults blocking adult content on their own device.
What Mamori's server holds
The homepage says very little is held on the server: "a random install ID, the block and allow lists you create, and your lock state, so a cooldown cannot be skipped by restarting the app."
What the store privacy labels say
On the App Store, the developer's answers appear under "Data Not Linked to You": Purchases (Purchase History) and Identifiers (User ID), used for App Functionality. Apple adds: "This information has not been verified by Apple."
On Google Play, the Data safety section shows "No data shared with third parties", with data collected listed as Device or other IDs, App activity, Other user-generated content (optional) and Financial info (purchase history), for app functionality. It also shows "Data is encrypted in transit" and "You can request that data be deleted". Google notes that the developer provided this information. Labels like these are the developer's own statements, so read them next to the description above and decide for yourself.
Android permissions in plain words
- VPN connection. Android requires an app that filters DNS across the whole phone to use its VPN service. Mamori uses it locally, with no remote VPN server.
- Accessibility service (optional). It lets Mamori block adult searches typed inside some apps, checked on the phone. The Google Play listing says it reads on-screen text in a fixed, limited list of apps (your browser and a small number of social and video apps) and that password fields are never read. Mamori's website blocking works without it. You can switch it off in Android Settings, under Accessibility.
- Device admin. Used for the uninstall guard while protection is on.
How to switch it off and uninstall
Mamori is built so a lock stands between you and the off switch: a cooldown timer, a random phrase, or a PIN or passphrase that a trusted person can hold. If you set a lock, complete it first, then switch protection off in the app. Once protection is off, everything is off and Mamori uninstalls like any other app.
While protection is on, the uninstall guard makes removal harder. On iPhone it uses Apple's Screen Time, which you can still turn off in Screen Time settings, so treat it as a speed bump. It is your phone and your choice: the lock is one you set yourself.
Price and trial
Monthly and annual plans start with 7 days free. On the US App Store, 9 Nov 2026, it is then $7.99 a month, $49.99 a year, or $99.99 once for lifetime. The App Store text says to cancel at least 24 hours before the trial ends if you do not want to be charged. For Google Play prices, check the listing.
Honest limits
- Android allows one VPN at a time, so another VPN or blocker that takes the slot switches Mamori's filter off.
- On any phone, a VPN with its own DNS can get around a DNS filter.
- Mamori has no accountability reports. To compare it with other kinds of tool, see Porn Blockers Compared: DNS, Screen Time, Apps and Router Filters.
- No blocker replaces support from people or a professional.
FAQ
Does Mamori work on iPhone?
Yes, on iOS 16.0 or later (and iPadOS 16.0 or later on iPad). You switch on Apple's encrypted DNS setting once, in Settings > General > VPN, DNS & Device Management > DNS.
Can Mamori see my messages or photos?
Pages, videos and messages do not pass through Mamori. The part it handles is the DNS lookup, meaning the site name: on Android it is checked on the phone, and on iPhone and iPad the site name goes over encrypted DNS to Mamori's filtering server. On Android, the optional Accessibility service reads on-screen text in a limited list of apps, as described above.
Is Mamori the same as the Roblox Mamori?
No. Mamori the app is not connected to the "Mamori" blocker style in the Roblox game Volleyball Legends, which some search results mix up with it.
Does Mamori need an account?
No. It has no account and never asks for your name or email.
Where Mamori fits
This whole guide is about Mamori, so in short: it is a blocker for adults on their own iPhone, iPad or Android phone, with a lock you choose and no account. It is not a monitoring tool, it gives no reports to anyone, and it is not for watching a child's phone. We cannot call any app "safe" for you, so use the facts above, the store listings and the privacy policy to decide.
You can get Mamori from the App Store or Google Play on the homepage: mamoriblocker.com (7 days free on the monthly and annual plans, or a one-time lifetime option).
Related guides
Is There a Porn Blocker That Can't Be Turned Off?Honest answer: not on a phone you control. Here is what makes a porn blocker hard to undo: delay, a code someone else holds, uninstall protection. Private Browsing, Incognito and Porn Blockers: What Gets Around WhatDoes private browsing or Incognito get around a porn blocker? What Apple and Google say, what their pages leave out, and a quick test for your own phone. How to Block JAV and Hentai SitesHow to block JAV and hentai sites: free SafeSearch, family DNS and Screen Time options, why list coverage matters, and how to add what slips through.Sources
- Apple, App Store, Mamori: Adult Content Blocker: https://apps.apple.com/us/app/mamori-adult-content-blocker/id6779092421
- Google Play, Mamori: Porn & Adult Blocker: https://play.google.com/store/apps/details?id=com.kai.jav_blocker
- Google Play, Data safety for Mamori: https://play.google.com/store/apps/datasafety?id=com.kai.jav_blocker&hl=en_US
- Mamori, homepage: mamoriblocker.com
Last checked 9 Nov 2026. This guide is general information, not medical advice.