1
They show a code
One rotating code per household, in the family's browser. It works with no signal, and it changes every minute so a screenshot is worth nothing.
Gate check-in for swim clubs & HOA pools
Check in a family, not a name.
Everyone else asks your lifeguard to find one person in a list. A family shows one code, their faces come up on screen, and the guard taps whoever actually walked through the gate. Two seconds, one hand, no clipboard.
A real club with real data, in your hands the same day. No card.
Members in. Guesswork out.
Riverside Pool
← Admin
Steady
64/180 here now
The Kelser Family
Check in 4
Declan✓
Ines✓
Diego
Allergy
Juno✓
Lucia✓
Ella
Sandra
Ayo
Riverside Swim Association
The Kelser Family
4KQ9P2 618304
PoolPassHouseholdGuests
How it works
Three seconds at the gate.
No app to install, no card to lose, no line while someone is looked up.
2
The household comes up
Every face in the family, big enough to recognise at arm's length in sunlight. Allergies and emergency contacts surface here, and only here.
3
The guard taps who came
Four faces, four taps, done. Your occupancy count is a record of who walked in — not a guess, and not whoever happened to be on the pass.
What you get
Built for a wet screen, one hand, and a queue.
Everything here is in every plan. We do not sell a cheap tier that fails at the thing it is for.
Guest passes your members send themselves
A family issues a pass, the guest signs the waiver on their own phone before they arrive, and the gate knows. Allowances count down automatically, and an unused pass comes back.
Safety notes where they belong
An allergy or an emergency contact appears on the household card at the moment of check-in and nowhere else — not in a list, not in an export. Every time one is opened, it is recorded.
The guard knows what happened last week
A scraped knee, a warning about running on the tiles, a note from another lifeguard — it shows on the household card at check-in, on the child it concerns. The next guard on shift starts where the last one left off instead of from nothing.
Nobody's child swims alone by accident
Set the age on your sign. The gate asks the guard whether an adult is really with them, they can still let the child in, and the override is written down.
Families keep their own roster
You add the household and one parent. They add the rest — spouse, children, the nanny — with photos, from their phone. Nobody types four hundred households into anything.
You can see the day
Who is here right now, how busy that is against a normal afternoon for your pool, and which evenings are actually quiet. Members see it too, so they come when you have room.
Lifeguards only see the gate
A staff login opens the kiosk and nothing else, unless you decide otherwise. Tick a box to let them fix a family's roster on a Saturday.
For the parent
Your fourteen-year-old went to the pool. Did they get there?
Every club already knows who walked through the gate and when. The parent never did — and that is the person actually wondering.
An access log for your own family
Who arrived, when they left, and how long they stayed. It comes straight from the gate, so there is nothing for anyone to remember to update — and it stops at the gate. It is not a location history, and nobody is followed anywhere.
And when it is worth going
A live count against what your pool actually reaches, plus the week's usual shape. Families stop turning up to a car park with no spaces, and clubs stop hearing "it is always packed" about a Tuesday.
Activity · the Kelser family
Today
JunoArrived 3:42 PM
There now
DiegoArrived 1:10 PM · Left 3:05 PM
115 minutes
Yesterday
LuciaArrived 11:20 AM · Left 2:35 PM
195 minutes
When it's busy
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Tuesday evenings are the quietest all week.
Pricing
One flat price per club. No setup fee.
Unlimited members, unlimited households, unlimited guests. Annual works out at ten months for twelve.
Toes In
One pool. A neighbourhood club or HOA with one gate.
$490/ year
or $49 a month
Request a demo- 1 pool
- Unlimited members & households
- Gate, passes, guest passes, waivers
- Photos, safety notes, incident log
- Busyness & typical week
- Email support
Deep End
Up to 5 pools. A main pool and a baby pool, or a small management company.
$1,490/ year
or $149 a month
Request a demo- Up to 5 pools
- Everything in Toes In
- Your own address at club.m4rco.co
- Roster import, with a dry run
- Reporting across all your pools
- 1 year of audit history
- Priority email support
Open Water
Up to 25 pools. A management company running a portfolio.
$3,990/ year
or $399 a month
Request a demo- Up to 25 pools
- Everything in Deep End
- Data export and API access
- 3 years of audit history
- Onboarding call for every club
Olympic
Unlimited. Municipalities, procurement and an SLA.
Let's talk
Volume pricing
Request a quote- Unlimited pools
- Everything in Open Water
- Named contact & response SLA
- Custom retention & contracts
- Security review welcome
What a club actually pays in year one
Member Splash Essentials — $2,000 plus $500 setup$2,500
Member Splash Premium — $3,500 plus $1,500 setup$5,000
M4RCO, Toes In — no setup fee$490
Published prices, checked September 2026. They sell white-glove setup as a feature; we sell not needing it. We also do less on purpose — no reservations, no dues billing, no club website.
Every plan bills once a year or once a month, cancel whenever. We never charge per member, and we never take a cut of your dues.
Questions
The ones boards actually ask.
How long does setup take?
An afternoon. Add your pool's hours and rules, add households with one parent's email each, and the families fill in the rest themselves — names, photos, everyone. On Deep End and up we will import your existing roster from a spreadsheet, with a dry run you approve before anything is written.
Is it M4RCO or Marco?
Both. It is spelled M4RCO, said "Marco", and lives at m4rco.co. We named it after the pool game — except unlike Marco Polo, you never have to guess where anybody is.
What hardware do we need?
A tablet or laptop at the gate and a USB barcode scanner — the ordinary keyboard-wedge kind, around $30. No drivers, no app, no camera permission. If the scanner dies, look members up by name; it is the same screen with the same photos, not a lesser fallback.
Do you store photographs of children?
Yes, and we treat that seriously. Photos appear on the gate screen at check-in and in the family's own app — never in a list, an export or a report. Families add and delete their own, deletion is real deletion, and we never run facial recognition of any kind. See our privacy policy.
Do you take our membership dues?
No, and we have no plans to. Money between a club and its members is between a club and its members. You pay us a flat fee for the software and nothing else touches your bank account.
What happens at the end of the season?
Nothing you have to do. Your data stays where it is, and next May every household's pass still works. Annual plans renew on their anniversary, not on a season boundary.
What if the internet goes down at the gate?
Today the gate needs a connection, and we would rather say so than pretend. Offline check-in is designed for and deliberately not built yet; it is the next significant piece of work. Passes themselves already work with no signal.
Members in. Guesswork out.
See it with a real club's data.
We will send you keys to a populated club — twenty families, photographs, six weeks of check-in history — and three logins, so you can be the lifeguard, the parent and the club admin in turn. That is the part a screenshot cannot show you.
- Nothing to install, and no card.
- Change anything you like; it resets every night.
- Usually the same day, from a person.