We built an app for Japanese neighborhood associations — and the handover notebook turned out to matter most

#productivity #ios #flutter #community

The problem

Every year in Japan, a small group of volunteers runs the local 自治会 (neighborhood association). They circulate bulletins, collect dues, check in on elderly residents, run votes at general meetings, and maintain the annual schedule. At year's end, they hand the role over — usually with a folder of paper, or nothing at all.

Nobody tracks who did what. Nobody measures the actual workload. So when it's time to recruit the next round of officers, no one can honestly answer "how much work is it?" And the handover is always rough.

That's the loop Musubiba is trying to break.

What's inside

Musubiba covers the full 自治会 / 町内会 cycle in one app: bulletin routing, dues collection, safety checks, general meeting votes, annual schedule, and a handover notebook.

The handover notebook ended up being the feature that resonated most. Officers change annually in most associations — and institutional memory typically walks out the door with them. Making that transition structured means the next person starts from somewhere real, not from scratch.

Members join via QR code. Web-based accounting input is supported for committees that prefer to keep some tasks on desktop. The stack is Flutter (iOS + Android) + Firebase, with Stripe + IAP for billing.

The honest limitation

Musubiba is purpose-built for Japanese 自治会 and 町内会. The workflows, terminology, and community context are Japan-specific — it's not a horizontal tool for HOAs or resident associations outside Japan.

Pricing: free up to 15 members, ¥1,500/month for unlimited.