Sigma Vision: Block Adult Content on Windows and Mac

AI-powered protection from adult content. Your peace of mind.

Take control of your digital life with real-time content monitoring, progressive blocking and 100% on-device privacy

LIMITED OFFER: First month free with code TRYSIGMA

Why I should care

Protect your brain and your children

Adult content consumption is linked to changes in attention, motivation, and reward wiring. Early exposure can shape a developing brain. In adults it can affect focus and drive. Reducing exposure helps protect mental and cognitive health.

Save your relationship before it’s too late.

Watching explicit content is one of the top reasons couples seek therapy and a common factor in breakups and divorce. Secrecy, betrayal, and lost intimacy destroy trust. Monitoring and boundaries help you address risk before it becomes a crisis.

Avoid the erection and performance trap.

Heavy use of adult explicit content is tied to arousal issues, difficulty with real partners, and needing more extreme content to feel turned on. Limiting access helps protect natural arousal and real-world sexual function.

Get your performance back at work and life

Less compulsive consumption means better focus, less shame, and more energy. Many people report clearer thinking, better productivity, and feeling more present once exposure is under control.

Enjoy a normal life again.

Less time in secret consumption means more time for relationships, hobbies, sleep, and real connection. You support a return to balance, not constant temptation or guilt.

Stop damage before it becomes “the rest of your life.”

Habits formed young can lock in. Real-time protection helps prevent the spiral of addiction, relationship harm, and health issues. So you’re not only fixing problems later, you’re preventing them now.

Plans

Windows and Mac. Checkout on the app. Full plan details

First month free with code TRYSIGMA at checkout. Valid until 30 September 2026, first 100 customers. Then the regular monthly price.

Starter

3,99 € / month

1 device
AI real-time screen monitoring
Website blocklist
Configurable warnings
Automatic lock after warning limit

Select Starter

Family

6,99 € / month

Up to 5 devices
Everything in Starter
Family dashboard
Per-device settings
Email notifications for parents
Priority support

Select Family

Pro

9,99 € / month

Up to 10 devices
Everything in Family
Early access to new features
Priority feature requests
Premium support

Select Pro

You are not alone in this

Everyone has their story, me too.

I’m a software engineer.

I had the same problem.

All day before screen.

One click away from relief.

I tried every blocker I could find.

They were all network-based. VPNs, DNS filters, browser extensions.

As someone who builds systems for a living, I could bypass them in minutes.

So could anyone with a bit of tech knowledge.

They gave a false sense of security, not real protection.

I needed something that I couldn’t cheat.

Something that runs where the content actually appears. On the screen.

Something I couldn’t simply turn off when temptation hit.

So I built it myself.

That’s how Sigma Vision was born.

AI-powered, real-time monitoring that doesn’t rely on the network.

Once you turn it on and make the commitment, the system has your back.

Even when your willpower doesn’t.

I built it because I needed it.

And once you make that commitment, your life can truly change.

Other blockers were a joke. My teen had them disabled in a day. Sigma Vision actually sees what’s on the screen. I get a warning, not a false sense of security. Finally something that works

Julia

"We were one more lie away from splitting. We needed something we couldn’t just turn off. Sigma Vision runs at the screen level. We both agreed to use it. It’s been six months. We’re still together."

Francis

My life actually got better. Focus at work, real intimacy with my wife, no more 3 a.m. spiral. And I love that it runs on both Windows and macOS. Same setup on my laptop and desktop. No excuses, no loopholes.

Lawrence

"I wasn’t sure it was 'real' until I tried stopping. Brain fog lifted. Sleep got better. Sigma Vision made it so I couldn’t cheat during the hard weeks. Now I don’t need to rely on willpower alone."

Sophia

"I’d tried extensions, router blocks, accountability apps. All bypassable or easy to ignore. Sigma Vision is the first thing that actually blocks at the screen. If you’re serious, this is the one."

Tommie

"The point was to make it so I couldn’t undo it in a moment of weakness. Sigma Vision does that. You set it up once. After that, the system holds the line. Life has genuinely changed."

Jeanette

How Sigma Vision works

Sigma Vision is an AI-powered content blocker for Windows and Mac, built by Sigmaio s.r.o. in Slovakia. It detects explicit content on screen in real time and, when warnings are ignored, locks the device. Protection does not depend on willpower in the moment.

Blocklist

Layer 1

Known adult sites blocked before they load
Same layer DNS filters and browser extensions already have
Stops the obvious destinations immediately

On-device AI

Layer 2

Real-time analysis of what is on screen
Configurable warning system
Looks at pixels, not only the URL

Full lockout

Layer 3

Screen, keyboard, mouse, and voice lock
Triggers after the warning limit
A notification can be clicked through. This cannot.

Sigma Vision warning banner over blurred content: close the content to avoid blocking, warning 2 of 5 — Layer 2 warning. Count is configurable. This example is 2 of 5.

Why it exists

Built in Slovakia

Built by a software engineer who needed it himself
VPN, DNS, and extension blockers were easy to bypass
Needed software that runs where content appears on screen

Privacy

On your machine

Detection and enforcement stay on-device
Family and Pro can email a partner or parent
No third-party screen reports

Who we build for

Windows and Mac

Parents on a shared family computer
Adults working on their own habits
Protection that holds when motivation does not

How it works

Start building new habits

Join the community of people who care about them

Stop reacting. Start choosing.