LOCKEDIN vs One Sec: Which Approach to Phone Addiction Actually Works?

Updated March 2026 · 7 min read

I respect what One Sec does. The idea is genuinely clever: you go to open Instagram, and instead of the app launching, you get a breathing exercise. A few seconds of pause. The theory is that little interruption breaks the autopilot loop and gives your brain a chance to reconsider.

And it works. For a while.

I built LOCKEDIN because I needed something that worked permanently, and I also needed to get off the couch. One Sec didn't solve either of those problems for me long-term. Let me explain why.

Friction vs. an Economy

One Sec adds friction. It makes the bad habit slightly harder. A little speed bump between your impulse and the scroll. The idea is that friction reduces behavior over time.

LOCKEDIN creates an economy. Your screen time is a currency. You earn it through exercise, you spend it on apps, and when you're broke, you're locked out. There's no friction to push through because there's nothing to push through. You either have a balance or you don't.

Think about the difference. One Sec asks "are you sure?" LOCKEDIN asks "how much of your balance do you want to spend on this?"

Those are completely different questions. "Are you sure?" is easy to blow past. You've been saying "yes" to that your whole life. But "how much do you want to spend?" makes you do math. And math changes behavior in a way that pauses don't.

Feature Comparison

The Problem I Kept Running Into

One Sec's own data says it reduces app opens by about 57% in the first few weeks. That's real. I believe it.

But here's what happened to me, and what I've heard from a lot of people: your brain gets used to it.

After a couple weeks, the breathing exercise stopped being an interruption. It became part of the routine. Breathe, wait, open, scroll. The pause was still there, but my brain had already decided to open the app before the breathing even started. Psychologists call this habituation. Your nervous system just stops responding to a repeated stimulus.

LOCKEDIN doesn't have a stimulus to get used to. Your balance is a number. It's either above zero or it isn't. That math works the same on day 1 and day 100. There's nothing to habituate to because it's not trying to interrupt you. It's a system.

The Thing That Actually Changed Everything for Me

Here's the real reason I built LOCKEDIN instead of just using One Sec forever.

One Sec did nothing for my fitness. Zero. It's a screen time app. That's all it tries to be, and that's fine.

But my screen time problem and my fitness problem were the same problem. I was sitting on the couch scrolling instead of moving. The phone was the reason I wasn't exercising, and being sedentary was the reason I was always on my phone. They fed each other.

LOCKEDIN flips that loop. Now my phone addiction is the engine that drives my exercise. I want to use my phone, so I go for a run. After a few weeks, the exercise habit started sticking on its own. I stopped needing the phone as motivation. I just went because it felt good.

No other screen time app does this. Not One Sec, not Opal, not ScreenZen. None of them even try. They all treat screen time and fitness as completely separate problems. I think they're the same problem, and I built LOCKEDIN around that idea.

Guilt-Free Phone Use

This part doesn't get talked about enough.

With One Sec, you breathe, you pause, and then you open the app anyway. And every time you do, there's this little feeling like you failed the exercise. The app tried to stop you. You went ahead anyway. It's subtle, but it's there. Over time that guilt makes your phone feel like an enemy.

With LOCKEDIN, I have 45 minutes of balance because I went to the gym this morning. I open YouTube, I watch some stuff, my balance drops. That's fine. I earned those minutes with my body. There is no guilt. The phone isn't my enemy. It's a reward I worked for.

That shift, from "I shouldn't be doing this" to "I earned this," is everything. It's why LOCKEDIN is sustainable and friction-based approaches tend to fade after a month or two.

Where One Sec Wins

• You want a gentle nudge, not a hard system. One Sec is lighter-touch by design.
• You're not really addicted, just want to be a little more mindful about opening apps.
• You want to still access any app anytime after a brief pause.
• You like intent tracking. One Sec logs why you opened each app. That's a genuinely useful feature.
• You don't exercise and have no interest in starting.

Where LOCKEDIN Wins

• You've tried the gentle approach and it stopped working after a few weeks.
• You want your apps to be actually blocked. System-level, not Shortcuts-based.
• You want to build an exercise habit at the same time.
• You want to use your phone without guilt because you earned the time.
• You want cheaper pricing. $9.99/year vs. $39.99/year.
• You have a fitness tracker and want those workouts to actually count toward something.