A breath before you scroll — friction, not a lock.
A breathing pause before a chosen app opens, not a block — effective for habit-level scrolling, not built to stop someone determined to get in anyway.
One Sec sits in front of apps you choose to add friction to. When you tap one open, instead of blocking it outright, it interrupts with a short pause — a few seconds of breathing, a small task like a math problem or rotating your phone, or a reminder of a healthier alternative — and then lets you decide whether to continue into the app or back out. According to the manufacturer, this is by design: the goal is a moment of conscious choice, not a wall you can't get past. iOS also offers an optional stricter options, Block Sessions (including Strict Block Sessions that can't be dismissed mid-session) and Block Schedules, for anyone who wants a harder lock alongside the gentle pause.
Independent reviewers are consistent on the core limitation: by default, One Sec delays rather than prevents. You can still open the app after the pause, and for a genuinely compulsive habit, the interruption can become something you click through without really registering. Coverage is broader than early testing suggested — according to the developer, the iOS Safari extension lets One Sec intervene on websites, and website blocking works across apps that use in-app browsers — but other browsers can still be a route around it, and reviewers note the underlying iOS automation can be disabled in Settings by anyone motivated enough to turn it off.
People who reach for a specific app out of habit rather than genuine need, and who want a moment of friction to interrupt the reflex — not a wall that makes the choice for them. It's a good starting point for someone who hasn't tried adding friction before and wants to see if a pause changes their behavior at all.
Anyone who already knows a soft nudge won't stop them — people who need a genuinely hard, hard-to-override block should look at a stricter blocker instead, or lean on One Sec's Block Sessions and Block Schedules (iOS) rather than its default friction mode. Anyone whose problem app is mostly used through a browser other than Safari on iOS, or through an Android browser, should confirm coverage before paying.
One Sec is honest about being friction, not a lock, and that's exactly its value for people who respond to a pause — but it's a poor fit for anyone who needs a restriction they genuinely can't talk themselves out of by default.
Inserts a short breathing pause before a chosen app opens, then lets you decide — friction instead of a wall.
Not by default — it inserts a pause (breathing exercise or small task) before the app opens and then lets you choose to continue or back out. iOS also offers Block Sessions (including a Strict mode that can't be dismissed mid-session) and Block Schedules, for anyone who wants a harder lock.
Not entirely. iOS was built first and has the most features, including Block Sessions, Block Schedules and a Safari extension for website coverage; Android arrived about a year later and uses a different underlying mechanism (accessibility services), according to the manufacturer's own FAQ, and feature parity isn't complete.
One app is free to try. Beyond that, One Sec's affiliate materials list Pro at $3.99/month or $19.99/year, and readers who sign up through our link get the first month free. A lifetime option has also been listed on the manufacturer's pricing page (roughly €99.99) — check the current price in your currency before buying, since it may differ by region.