Short answer: no, not on a phone you own. Here is the honest version, and the setup that actually gets you to scroll less.
There is no truly unblockable screen time app on a normal phone. You own the device, so you can always uninstall the app, turn off a permission, or reset a setting. Anyone selling an "unblockable" blocker is overselling. What actually helps is enough friction that the reflex to open a feed loses, plus your own buy-in. The goal is not a perfect wall. It is a pause that beats the habit most of the time.
A phone is yours. It is not a locked kiosk. Every real blocker relies on permissions you granted, and you can take those back. You can delete the app. You can toggle off accessibility access. On some setups you can reset screen time settings entirely. This is not a flaw in the app. It is just what it means to own the device.
So when a product claims to be unbypassable, one of two things is true. Either it is exaggerating, or it is doing something heavy handed that you will resent and remove within a week. A wall you hate is a wall you tear down. That is the trap most "hardcore" tools fall into.
If you still want the strictest realistic setup, that is fair. Read about a strict app blocker on Android or the wider best app blocker options. Just go in knowing none of them are magic.
You cannot build a wall you cannot climb. You can make climbing it slow, annoying, and unrewarding. That is enough for most people, most of the time. Here is what actually moves the needle.
Notice what is missing: a promise that you physically cannot get through. That promise does not exist. Chasing it just leads you to harsher tools you uninstall in frustration. Friction that you agreed to lasts longer. If you want to understand why the small stuff works, see how an app that adds friction helps.
Think about what you are really trying to fix. It is not that you lack a strong enough cage. It is that opening the app is automatic, faster than thought. You do not decide to scroll. Your thumb moves and you are in.
A perfect wall would fight that reflex head on, and reflexes usually win, or you rip the wall down. A small pause does something smarter. It slips a single conscious moment between the reflex and the reward. In that moment, most of the pull just evaporates. You did not fight anything. You breathed, and the urge was gone. That is why chasing "unblockable" misses the point. The fix is a better moment, not a stronger cage. More on the habit itself in breaking phone addiction.
Anása is honest about this. It is not unblockable. You can turn it off. It does not lock or wall off your phone, and calls, maps, texts and the essentials always work. What it does is step in the moment you open an app you chose to guard, with a single breath and a calmer path first.
Here is the quiet part: most opens do not survive that one breath. When the pause lands before the scroll starts, the urge usually passes on its own, and reaching for the off switch never comes up. You guard the specific feeds you pick, so one app can be protected without blocking everything.
It runs fully on-device and private. No camera, no trackers, no account, nothing sent anywhere. It is free on iPhone and Android. Not a cage. Just a breath at the right moment. If you want a broader look, compare it with a plain screen time app or start with how to stop doomscrolling.
No. On a normal phone that you own, you can always uninstall an app, turn off a permission, or reset settings. Any app that promises to be truly unblockable is overselling. What good tools do instead is add enough friction that the reflex to open a feed loses before it wins.
Not on the device alone. You can get close by stacking friction: a partner-held passcode, longer delays, and no quick uninstall path. But you own the phone, so a bypass always exists. The realistic goal is to make bypassing slower and more annoying than just closing the app.
Usually because the block feels like a wall you are fighting, so you fight it. A hard wall triggers the urge to break it. A small pause works better because there is nothing to fight. You take one breath, the urge passes, and you move on without a battle of willpower.
Anása does not pretend to be unblockable. Yes, you can turn it off. But when you open a chosen app it steps in with a single breath and a calmer path first. Most opens do not survive that one breath, so you rarely reach for the off switch at all. It runs on-device, private, and free on iPhone and Android.
Free on iPhone and Android. Everything stays on your phone.