Introducing Lock In-Out: A focus app for truly focusing

Hi everyone!

I’m Yuki, and I’m super excited to share Lock In-Out, a focus app I built for iPhone.

I’ve tried several focus apps, including Forest and Opal. But in my own routine, I kept running into following three problems:

I had to remember to start a focus session. Even after arriving at a cafe or library to work, I still had to pick up my phone and switch it on.
Picking up my phone was where I got distracted. “I’ll just check Instagram first. Or X. Just for a minute.” Before I’d even started focusing, I was already losing the time I’d set aside for it.
I only kept using focus apps when I felt motivated. Once that motivation faded, I stopped starting sessions.

I thought it should be simpler: save the places where you focus, and let arriving there start the blocking for you.

So I built Lock In-Out:

Save your focus places. Your cafe, library, or coworking space.
Choose the apps you want to block. They’re blocked automatically when you arrive and become available again when you leave.
No session to start each time. Your iPhone’s location triggers the blocking. If you need access while you’re there, you can take a 5-minute break.

For me, it has reduced my screen time more than any other focus app I’ve tried, because it keeps working even when I’m not feeling motivated.

Walk in. Lock in.

Try it at your next cafe or library session, and let me know how it fits into your routine.

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