CommonGround

hinge already has prompts. bumble already has your preferences.

every dating app already knows where you eat, what you drink, and when you go out — they just don't show you. the taste-matching feature you'd build in this app? any one of them could ship it tomorrow as a tab. and now with vibe coding, so could any solo dev with a weekend and an idea — i built this in an hour. the moat isn't the code anymore.

this whole thing started with gmaps-list — a parser for google maps saved lists. google lets you export your place history, share saved lists, take out your data. apple doesn't. there's no "download my saved places" in apple maps. they give you mapkit identifiers for stable place matching across devices, but your actual visit history stays locked inside the ecosystem. so you're building place intelligence on top of a platform where users can't even get their own data out. google hands you the export. apple hands you an API and says good luck. so i built both — a place intelligence app with social matching.

it tracks how adventurous you are. how many new places vs. repeats this month. "you visited 8 places but 6 were repeats. you used to try 4 new spots a month." it computes your taste profile from where you actually go — not what you say you like.

then compare your map with someone else's. both been, both want to go, you show them, they show you, nearby vibes. five categories of shared taste that no other app computes.

also: confetti.