Purus

A browser that keeps the web clean.

Purus blocks explicit content, ads, and unsafe searches automatically. Try it free for 14 days. No account.

Download on the App Store

14-day free trial · Plans from $4.99/month

iPhone · iOS 16 or later

Coming soon to Android — Join the waitlist

We use your email only to tell you when this is available. To be removed, email nicholas.purus@gmail.com.

No account required · On-device filtering

Purus significantly reduces exposure to explicit content but cannot guarantee complete filtering of all online content.

Sound familiar?

The problems Purus is built for.

Much of the internet is designed to hold your attention, and many filters can be turned off in a moment of weakness. Purus is built the other way around.

One wrong tap

A first phone puts the whole internet within reach, and a curious kid is one search or one tapped link away from something you'd rather they hadn't seen.

Filters that are easy to get around

Built-in controls can be fiddly to set up, and a determined kid or teen can find the switch. You want protection that stays on.

Mentor, not monitor

You'd rather build trust than read over a shoulder. A quiet safety net works in the background so you don't have to hover.

Focus that slips away

If late-night scrolling leaves you foggy and unmotivated, you want your attention back, and a browser that helps you keep it.

Weak moments

A filter you can switch off in a moment of weakness isn't much of a filter. Inside Purus, there's no toggle to turn the filtering off.

Protection without a report card

You want a safety net, not something that tells on you. Purus has no account and sends no reports or screenshots to anyone.

Built Different

One of the Most Comprehensive Content Filters Available*

Purus stacks eight independent layers of protection — from DNS to keyword to platform-specific filtering — so very little slips through.

8

Simultaneous filtering layers

Most competitors don't run more than 2-3

507

Keyword patterns blocked

Across every major search engine

60s

From download to browsing clean

A minute or two to set up. No account needed.

* Based on number of simultaneous filtering layers compared to publicly available consumer browser filters.

Eight layers, stacked

Block list, DNS, keyword, URL inspection, cosmetic, safe search, YouTube Restricted Mode, and platform-specific filtering all run on every request.

Filtering on your device

Filtering decisions are made on your phone. Purus doesn't operate servers that collect your browsing history or search queries.

No account

Nothing to sign up for and nothing to log into. Download it and go.

See all eight layers →

See it in action

Simple by design.

Stops it before it loads.8 filtering layers.Set your default browser.Safe search, always strict.You're all set.

Stops it before it loads.

FAQ

Questions, answered honestly.

There's no free version, but every new subscriber gets a 14-day free trial, with no account. After the trial, Individual is $4.99 per month or $49.99 per year, and Family, which covers multiple devices, is $9.99 per month or $99.99 per year. Every plan includes all eight filtering layers, PurusAI on-device image detection, locked safe search, and ad blocking. Billing is through Apple and tied to your Apple ID.

No — filtering isn't a setting you can switch off. AI image blocking, keyword scanning, URL inspection, cosmetic filtering, safe search enforcement, YouTube Restricted Mode, and platform-specific filtering all run automatically on every request, with no toggle for any of them anywhere in the app. The one exception is DNS-level protection: it's opt-in, and once enabled it can still be removed through iOS's own Settings → VPN & Device Management — that's standard iOS behavior for any DNS configuration profile, not something specific to Purus.

Once DNS-level protection is enabled, it filters at the network level — meaning it also blocks explicit domains in Safari and any other browser on the device, not just Purus. However, Purus's other eight layers (keyword filtering, cosmetic filtering, safe search enforcement, YouTube Restricted Mode, and platform-specific filtering) only run inside the Purus app itself, since Apple doesn't allow any app to control what happens inside another app. For the strongest setup, we recommend pairing Purus with iOS's built-in Screen Time controls to limit which browsers are available on the device — Apple doesn't let third-party apps like Purus disable or remove other apps directly, but Screen Time can.

Purus is a browser, and its eight layers run inside Purus — Apple doesn't allow any app to control what happens inside another app. In the Purus browser, TikTok, X, Snapchat, Pinterest, Tumblr, and Instagram are blocked entirely, and YouTube is held to Restricted Mode. Those same apps on your phone are a different story: to limit or remove them, use iOS's Screen Time controls alongside Purus.

It happens occasionally. Tap 'Report it' on the blocked page and we review it quickly. False positive reports go directly to our block list team and the site is usually cleared in the next filter update. Want a feature or see a problem? Go to 'Feedback' in settings or on this website and let us know your thoughts.

Most of Purus's filtering happens instantly on your device, with no delay. The one exception is DNS-level filtering, which checks domains through an encrypted connection — this can add a small delay the first time you visit a new site, similar to a VPN, though it speeds up quickly as your device caches results. Overall, most users don't notice a meaningful difference in everyday browsing.

Filtering runs on your device, so it does use some processing. We haven't published battery measurements, and we won't quote a number we can't back up.

No. Purus has no accounts and sends no reports or screenshots to anyone. Filtering decisions happen on your device, and your history, bookmarks, and tabs stay on your phone. A few things leave your device only in limited ways: Purus fetches updated block lists, DNS protection (if you turn it on) sends domain lookups through AdGuard's family filter, tapping ‘Report it’ submits that one URL to us, and Search Suggestions (if you enable them) send partial search text to your chosen search engine. The Privacy Policy covers each in full.

The app appears on your home screen as “Purus”. Subscriptions are processed by Apple, like any App Store purchase.

About Purus

Built to do one thing well.

My name is Nick Soter and I’m the founder and chief engineer of Purus. More importantly, I’m a husband, an oldest brother, a son, a friend, and someone who deeply cares about the community around me. As I’ve studied Information Systems, Psychology, and Business I became fascinated by human behavior and how technology can either compromise or protect our mental well-being.

Growing up, serving in my church, and interacting with people in all walks of life I quickly saw that pornography was a universal problem among men and women of all ages. While studying the issue, I saw that existing solutions are great but often too expensive, complicated, or intrusive. While working with people I realized that their frustrations were the same as mine: there really isn’t a seamless way to block explicit and distracting content automatically without a catch.

We are at a point in technology where things are rapidly changing. With recent breakthroughs in AI, we can actually catch explicit content automatically. I realized that by implementing current technology and using it to fix a problem that affects so many people, we could help change lives in a very meaningful way. This is where Purus was born; a simple solution to a complicated problem.

This app came after a year of brainstorming with very bright minds, conversations with real people, and months of development to create what you’re downloading on your phone today.

It took hundreds of tweaks, dozens of iterations, and a firm belief that we could create something that would bring lasting impact. Finally it’s here, and as the chief engineer and founder of the company, I’m thrilled you’re here and are willing to give us a try. I hope that this app becomes to you what it means to me; a symbol of virtue, cleanliness, security and certainly a safer, cleaner, online experience.

The web, without the parts you don't want.

Eight filtering layers, a 14-day free trial, no account. Built to block the vast majority of explicit content before it loads.

Download on the App Store

Requires iOS 16 or later · iPhone

Coming soon to Android — Join the waitlist

We use your email only to tell you when this is available. To be removed, email nicholas.purus@gmail.com.