No more guessing. See the best bars in real time. Coming soon exclusively to San Diego.
From Pacific Beach to Encinitas, Gaslamp to Carlsbad. Happy hour to last call — every corner of San Diego County.
Open the app. Every bar, lounge, rooftop, and club in San Diego is at your fingertips — each one showing how many real people are actually inside. Live where we have signal. Smart projections everywhere else, sharpening daily as more people use the app. Blue is chilling. Amber is warming up. Red means it's going off. No more guessing what's going on.
Tap a spot. See what's going on. Walk in. An easy way to see what's actually happening around town before you leave the house — from happy hour to last call, always knowing the best spot to go. It's really that simple.
Free. iPhone and Android. Built in San Diego — Orange County and LA next.
This is the app that we've all been waiting for.
Some early ad spend got things going. Most of this growth has been organic — people who genuinely like what we're building, telling their friends.
That's it. That's the whole reason this exists.
Every other live thing in your city is solved. Real-time flight tracking. Real-time traffic. Live stock charts that update by the second. But "is that rooftop actually good tonight?" still gets answered by a Yelp review from 2019 and a friend's cousin who went there once in March.
That's ridiculous. So we built the thing.
Jellyfish is the first real-time occupancy platform for the social and nightlife industry. We tell you exactly how many people are inside every bar, lounge, club, and rooftop in the city — right now, right this minute.
Every Jellyfish user inside a venue contributes to its count — without ever revealing their identity to anyone. Aggregate occupancy without compromising any individual.
Quick cold-to-hot ratings from people in the room. Ground-truth signal that gets fused into a confidence-weighted occupancy estimate.
Our model learns each venue's patterns over time — what Friday at 10 PM looks like vs. Wednesday at 8. Fills the gaps when the live signal is sparse.
We believe occupancy is the single most important signal for "where should we go tonight?" — Not star ratings. Not Yelp counts. Not influencer tags. Whether the room is actually alive, right now.
Reviews were the internet's first answer to that question — and in 2004 they were revolutionary. Two decades later they're frozen artifacts. Written by people who aren't you, about a night that isn't tonight. They tell you what was. They can't tell you what is.
The next decade of nightlife belongs to whoever measures it live. So that's what we're building.
It's a small idea. We think it's revolutionary.
The map is the front-end. The dataset is the moat.
We're not a review site. We're not a directory. We're an occupancy data company that ships a great consumer app.
The map, your crew, plans, pulse reports — all free, all yours. Pro is the upgrade you'll wonder how you went out without: smart search, daily picks tuned to your taste, and the map traveling with you when you leave the city.
| Feature | Free | Pro |
|---|---|---|
| Live map · every nightlife venue | ✓ | ✓ |
| Crew presence + group plans | ✓ | ✓ |
| Pulse reports + points | ✓ | ✓ |
| QR pass for in-venue promos | ✓ | ✓ |
| Hot Now filter (verified live crowds) | — | ✓ |
| Smart search ("speakeasy with a band") | — | ✓ |
| Personalized daily picks | — | ✓ |
| Priority access to events | — | ✓ |
| Multi-city insights when you travel | — | ✓ |
SD is where we get it right. Then Orange County. Then LA. Then every major US nightlife hub. 67,000 venues. $25B in annual revenue. All up for grabs. The map is the moat — every check-in, every pulse, every crew sharpens the algorithm.
A quick intro to who's behind it.
Three startups in, and nearly a decade deep on this one. James sketched the first version of Jellyfish on a napkin at a college bar in 2017, and has been building it ever since — running it hands-on, and still answering his own emails.
"Jellyfish really is the Equation to a Good Time. Too many bad nights to count — I'm just trying to solve that for everybody."
Jellyfish is a live map of your social life. The goal is to help you make better decisions about going out, more often — by collecting and surfacing the data that actually matters when you're picking where to go. Search by what you actually care about (tequila bars, dance floors, rooftops, dive bars) and see where people with similar interests are heading right now. Occupancy is the centerpoint of the signal.
It won't be fully live everywhere on day one — coverage builds neighborhood by neighborhood as more people drop pulse reports and the dataset thickens. But that's the bet: keep measuring, keep tightening the signal, and the map becomes the single most reliable read on what's happening in your city tonight.
One important framing: we're not a social media app. Social media is for people who want to meet online. Jellyfish is the first app for people who want to meet in person. That's the whole point.
The full recipe is something we keep close — it's the long-term moat. But the principle is simple: we fuse a lot of live signals into one composite read — the people actually inside a venue, what they're telling us, and the patterns each room follows over time.
The bet isn't that any single signal is perfect. It's that stacking enough of them, from enough sources, beats anything built on one source — including the weekly averages most apps lean on.
And when we genuinely don't have enough live signal for a venue, the pin stays grey — never an invented color. Telling you we don't know yet beats guessing. That's the line between Jellyfish and "popular times."
Yes. The map, the 5-band crowd colors, your crew, tonight's plan, trails — all free. Drop pulse reports, build trails, plan your night with your friends, find your people. The core app delivers on the promise without a paywall.
Then there's Jellyfish Pro — $4.99/mo. Kind of a different app.
Start on Free. The people who go out a lot usually end up on Pro.
All 19 of them. Pacific Beach, Gaslamp Quarter, North Park, Hillcrest, La Jolla, Little Italy, Mission Beach, Ocean Beach, East Village, South Park, Bird Rock, Point Loma, Uptown / Central (Mission Hills + Bankers Hill), Old Town, Mission Valley, Coronado, Del Mar, Encinitas, and Carlsbad — 450+ venues across the county.
We're a categorically different product — not a better version of either.
Yelp is review-based. It's the internet's first form of reviews — still useful for what it is: a bulletin where people share their opinions about places they've been. But reviews are biased, slow, and almost never tell you what's happening right now.
Google is relevance-based. Search rankings, popular times, "near me" results. The entire engine is built to decide which result is most relevant to your query. Google has occupancy data — but it's averaged across weeks, not live.
Jellyfish is occupancy-based. Every decision the app makes flows from one signal: where is the energy right now. We're not trying to be Yelp 2.0 or out-rank Google. We're an entirely different layer underneath the question "where should we go tonight?"
Reviews tell you what was. Rankings tell you what's relevant. Jellyfish tells you what's alive.
Yes. Your geofence presence at a venue contributes to that venue's crowd color, not a personal pin on a map other users can see. Only friends in your crew can see your location, and only when you opt in to share with each one individually. Read the full privacy policy.
San Diego now. Los Angeles and Orange County next. Then major US nightlife cities — New York, Miami, Austin, Nashville, Chicago, Atlanta, Vegas — over the next five years. We get one city right before opening the next; the data quality matters more than the headline number of cities.
Open beta in San Diego is live now. Public launch on iPhone and Android rolls out through 2026. Drop your email at the top of this page to get in early.
The focus is bars, clubs, lounges, and rooftops — anywhere you'd go between 7pm and 2am. Many of those are great date-night spots too (cocktail bars, wine bars, speakeasies), and you can filter by mood including "date night." Pure restaurants without a strong bar scene aren't the primary use case yet.
Yes. Visit our venue partner page to claim your listing, post specials, and reach the 21-35 crowd actively searching for somewhere to go tonight. Basic listings are free; Plus and Premium tiers unlock analytics, featured placement, and direct messaging.
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