Launching today

ProductGapRadar

Launching today

Find US App Store hits not yet available in Japan.

3 followers

Find US App Store hits not yet available in Japan.

3 followers

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Discover apps gaining traction in the US that haven't been localized or released in Japan yet. An information hub for indie developers hunting their next opportunity.

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Launch tags:Web App•Developer Tools•Artificial Intelligence

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Maker

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Hi PH! 👋 I'm an indie developer based in Japan. I kept noticing the same thing: apps blowing up in the US App Store that simply don't exist in Japan yet — no localization, no release, nothing. Every one of those felt like an open opportunity just sitting there, but tracking them by hand was painful. So I built ProductGapRadar. Every day it surfaces US apps gaining traction that haven't landed in Japan yet — a running list of market gaps for indie devs looking for their next thing to build. I'd love to hear: if you're a builder, what's the last "why doesn't this exist here yet?" moment you had? And for anyone who's localized an app across markets — what worked, what didn't? Happy to answer any questions 🙏

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5d ago