Your neighborhood,
all in one app.
SemiCircles brings your community closer together — real-time safety alerts, a local marketplace, neighborhood events, and a built-in CRM for the people who keep your block running.
Everything you need, right next door.
One app for staying safe, trading locally, meeting neighbors, and growing a neighborhood business.
Neighbor CRM
Turn neighborhood gigs into a thriving business. Send estimates, schedule smart, and build your local reputation.
Local Safety
Get real-time neighborhood alerts, share safety updates, and look out for one another.
Marketplace
Buy, sell, or trade items with trusted neighbors. Find local services and jobs close to home.
Events & Meetups
Discover local events, join specialized groups, and meet neighbors who share your interests.
Meet & Mingle
Swipe through local profiles to make new friends or find a date right in your area.
nAIghbor AI
Ask your neighborhood anything — and stay protected. Our AI helps spot scammers and fake profiles before they reach you.
Your neighborhood's built-in safety net.
nAIghbor is more than a helpful assistant. It actively watches out for the community — flagging suspicious listings, scam patterns, and fake profiles so you can connect with real neighbors, with confidence.
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🛡️
Stops scammers in their tracks Detects common scam patterns in listings and messages and warns you before you engage.
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👤
Catches fake & impersonator profiles Surfaces suspicious accounts and bot-like behavior so the people next door are actually real.
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💬
Answers anything, locally Find events, deals, and listings nearby just by asking — in plain language.
Take a look inside
A polished, fast experience built for everyday neighborhood life.
Meet your neighborhood today.
Join the people next door on SemiCircles. Download the app or open it right in your browser.
