Focus mode apps and browsers, compared
We make one of these, so read accordingly. Every page below says plainly when the other tool is the better choice, because most of the time it is. Not A Browser solves one narrow problem and the others solve broader ones.
Facts and prices were checked in August 2026 against public sources and change often. Verify before paying for anything.
Other browsers
Apps that also render pages. The differences are about what they will let you do next.
Not A Browser vs Anti Browser
Same idea, different phones. On iPhone, Anti Browser is the only real option and a good one. On Android it does not exist, and Not A Browser does.
Not A Browser vs Firefox Focus
Firefox Focus forgets what you browsed. Not A Browser stops you browsing. If your problem is tracking, use Focus. If your problem is the two hours, Focus will not help.
Not A Browser vs No Browser
No Browser makes browsing pleasant. Not A Browser removes the place you start from. If your problem is clutter on the page, No Browser. If your problem is that browsing is too easy, No Browser will not help.
Focus mode and screen time apps
A different mechanism entirely: they restrict apps rather than removing a capability.
Not A Browser vs Opal
Opal blocks apps and charges about $99.99 a year for the insight into why you open them. It does not run on Android, and it does not solve the browser problem on any platform.
Not A Browser vs Freedom
Freedom is the right tool for a laptop and a scheduled work block. On a phone that has to keep working all day, blocking the browser is the part that fails.
Not A Browser vs ScreenZen
ScreenZen is the first thing to try, and it is free. It adds a pause before an app opens. A pause before a browser you have every right to open does not help.
Not A Browser vs one sec
one sec interrupts an unconscious reflex, which is most of the problem for most people. Opening a browser is usually not unconscious: you had a reason, and the reason was a link.
Not A Browser vs Brick
Brick moves the decision to the morning, when you are calm, by leaving an object at home. It is a genuinely good idea that does nothing about the browser.
What is already on your phone
Free, installed, and the right first move. Where it stops.
None of these is a substitute for the free part. The setup guide is the settings work that does most of the job, whichever app you end up using.