Block betting sites and apps.
No off switch.
Sello blocks betting sites and apps for as long as you choose — it works in any country. Once it's on, the time can't be shortened, not even by reinstalling.
7-day free trial · Android 8+ · Works worldwide
Why it matters
Betting is designed so you can't stop.
It's not a lack of willpower. It's a product built to hook you — available 24/7, one tap away in your pocket.
Always one tap away
The casino lives in your phone: no line, no closing time, always open.
Built to hook
Push notifications, bonuses and near-misses are engineered to pull you back.
The urge passes
The urge lasts minutes. Sello adds enough friction to get you through that moment.
How it works
Three layers of friction, all on your device.
Sello doesn't promise a perfect 100% block. It creates real friction — making access hard enough that you pull back the moment you most need to.
Local VPN on your phone
A VPN that runs only on your phone filters and blocks connections to betting sites. Your data never leaves the device.
Betting-app detection
When a casino or betting app opens, Sello notices and stops it — what the VPN alone can't reach.
Locked for as long as you choose
You set the period. Once it's on, it can't be shortened — not even by uninstalling.
Day streak
Count your days without betting. Every day is a concrete win — and your streak stays in sight.
Money you kept
The calculator shows how much you stopped losing. What used to go to the bet is now yours.
Support one tap away
Your country's help lines, always one tap away — straight to someone who can help.
Start free
7 days free. Then cheaper than a coffee a month.
If you're trying to get out of debt, you don't need another expensive bill. Try a week free — no strings. Cancel anytime, and the period you sealed keeps protecting you.
FAQ
Frequently asked questions
Does it work in my country?
Yes. The filter runs 100% on your phone, so Sello works in any country where you have an Android — wherever you are.
Can it be turned off early?
No. Once the period is sealed, it can't be shortened: not by uninstalling, not by restarting the phone, not by emailing support. The seal only opens when the time you chose ends.
Does it collect my data?
No. Anonymous account, no email required, and we don't store your browsing history. Blocking happens on your device.
Which devices does it work on?
Android 8 or newer. Not on iPhone/iOS yet — you can leave your email and we'll tell you when it arrives.
Is it free?
There's a 7-day free trial. After that, a low subscription via Google Play; cancel anytime.
What exactly does it block?
Over 264,000 sites and 214 betting apps: sportsbooks, online casino, slots, poker, bingo and crypto-betting, licensed or not.
Need help now?
You don't need the app to take the first step.
If the urge to bet is strong right now, reach out. These lines are free and built for this — we show your country's first.
We detected your country: its line shows first.
No borders
Don't see your country? These options serve worldwide.
Sello is a blocking and support tool, not treatment. If you're in crisis or having thoughts of harming yourself, reach your country's crisis line or emergency number now. You're not alone.
iPhone
Not on iPhone yet.
Sello is on Android today. Leave your email and we'll tell you when it reaches iOS.
No spam. A single email. Or write to [email protected].