Specimen: waitlist, open now

Send it together.

A dating app for rock people, broadly defined. Whether you're into geology, punk rock, rocket launches, or the rockettes — as long as you like some sort of rock, there's a match for you.

One email at launch. No newsletter.
Specimen: rock type compatibility quiz

Three layers, five minutes, real results.

Our concept may be silly, but our goals for your next relationship aren't. That's why, before you even worry about which photos to upload, there's a short quiz to determine your relationship style. It returns with three rock types: igneous, sedimentary, and metamorphic.

Then, we show you matches with types that are compatible with your own — that way you don't waste your time with someone who's trying to launch while you're still building your propellant tanks, or vice-versa.

Layer 1 of 3 Try it

Pick your formation.

When you know you know. Ready to dive into something new.

Two people on a rope swing in a flooded cave
Field note — limestone karst, matched on caving
How matching works

Needs and wants, both valued.

Most apps score one thing. ROCK scores two and only connects people where both hold: your dating type — the formation the quiz gave you — and your rock interests.

Axis 01 — dating type

Formation compatibility

Your quiz result is a pace, not a personality. Sedimentary wants to build slowly. Igneous wants to go now. Metamorphic has been changed by pressure and is fine about it. Some pairs hold, some shear.

Sedimentary + metamorphicHolds
Igneous + igneousHolds, loudly
Igneous + sedimentaryShears
Metamorphic + anythingUsually holds
Axis 02 — interests

Seam overlap

You tell us what you're into and what you're open to. Every profile you see displays a four-layered compatibility strength metric, based on quiz answers.

compatibility · 2 of 4 layers
Interests represented

Broadly defined, and we mean it.

Nine families of rock interest, each with its own sub-tags. You pick up to twelve. Nobody has to explain what a nickpoint is on a first date.

Bedroom wall covered in show posters, a bass guitar and a lava lamp
Two people at a co-op house show
01

Rock music

Punk, classic, shoegaze, and co-op parties.

02

Bouldering and climbing

Highballs, slab, and the specific silence before a crux.

03

Geology and field work

Mapping, thin sections, and arguing about a contact for an hour.

04

Pop rock: Rockefeller, Rockettes, the Rock

Anything rock-adjacent by name. The pun counts.

05

Earth-bending and tabletop games

Campaigns, dice trays, and moving stone with your mind.

06

Cave exploring

Karst, cold water, and a rope swing in the dark.

07

Gravel and off-roading

Loose surfaces, long descents, and questionable tire choices.

08

Rock salt and cooking

Salt blocks, brines, and food cooked directly on stone.

09

Gemstones and crystals

Cabbing, tumbling, specimen trays, and the UV shelf at midnight.

Questions

Before you leave an email.

Do I have to be a geologist?

No. Rock people, broadly defined — geologists, boulderers, punks, cave swimmers. One of those is enough.

What does the quiz actually measure?

Pace and pressure, not taste. It returns a rock type — sedimentary, igneous, or metamorphic — that describes how you date. Interests are scored separately.

Can I change my rock type later?

You can retake the quiz every 30 days, so take it seriously. No gaming the system.

When does it open?

As soon as we have enough people on the waitlist. Tell your friends!

What happens to my email?

It sits on the waitlist and gets used once, at launch. No newsletter, no sharing it with anyone else.

Is this a rock music app or a geology app?

Both, on purpose. The interest layer keeps them apart when you want them apart.

Rock.

Send it together.

Leave an email. You will only receive your invitation to the app.

One email at launch. No newsletter.