


Solo-built an app to fix pickup sports coordination. Tell me if I'm solving a real problem or just my own
The problem: I've played pickup volleyball in Singapore for 5 years, and organizing a game is genuinely harder than playing it. You need ~12 people, someone always bails last-minute, you end up spamming three different group chats asking "anyone got 2 more?", and when people do show up they're often way above or way below the rest of the group's level, so the game ends up lopsided and nobody has fun.
I've been building an app called Coterie to fix this, specifically for pickup volleyball in Singapore: you post a game (date, court, open slots, skill level), and people browse/filter by location, skill level, and schedule to grab a spot.
I'm building this solo, using Claude Code (Anthropic's coding agent) to move fast without a team, so this is early and I'm not asking for design/UI feedback yet. The polish isn't there.
What I actually want from this post:
- Is "filling a court + skill mismatch" a real enough pain point that people would download an app for it, or is my group chat just uniquely dysfunctional?
- If this existed and worked well, would you actually use it, for volleyball or for whatever sport/hobby you organize?
- If you were building this, how would you think about turning it into a real business, not just a free utility? (Court-booking commission, premium organizer tools, ads, something else entirely?)
Happy to hear "this is too niche" or "this is a feature, not a company." Genuinely trying to figure out if this is worth continuing to build, or if I'm solving a problem that's mine alone.
If you are interested or feel like it is something you would use I would be happy to DM the link too!