NFC loyalty for independent cafés · Sydney

First time.Second time.Every time.

Tampkit turns first-time customers into regulars. One tap. No app.

Visit 1→Visit 2→Visit 3→★Regular
Stamp added · 3 of 5
The Tampkit stamp in oak

The team

Who we are.

Aayan

Aayan

Founder · product and pitch
UNSW · DATA SCIENCE · 2ND YEAR

Built Tampkit's card, console and stamp. A run of hackathon projects and wins behind him, and the one who walks into the cafés and sells it.

Sameer Singh

Sameer Singh

Sales and customers
UNSW · DATA SCIENCE · 2ND YEAR

Comes up with the sales ideas: how we pitch, what we say at the counter and how we talk to customers.

Abdelsalam Mahfouz

Abdelsalam Mahfouz

Hardware
UNSW · ENGINEERING · 2ND YEAR

Studies biomechanical engineering and builds the physical stamp: the parts, the print and the fit.

The psychology

Loyalty has one job: bring them back.

No loyalty card
0%
With a loyalty card
0%

of first-time customers come back. A loyalty card brings back about 4× as many.

4th visitBy the fourth visit, about 9 in 10 keep coming back. That's a regular.
Toast Loyalty Impact Analysis, 2026 (first-timer return rates). Paytronix Data Insights (fourth-visit loyalty).

So why do 9 in 10 café cards never get finished?

~10%

of café stamp cards ever get finished.

Nine in ten customers start a card and never come back for the reward.

$120–360a year that cafés still spend reprinting paper cards.

The problem

There's no digital loyalty program that's easy for customers, easy for staff, and that cafés can make their own.

1
Paper gets lost.Cards rip, wash and vanish. Cafés pay $120–360 a year to reprint them.
2
Nobody downloads an app.Not for one coffee. Download, sign up, password, gone.
3
Cafés learn nothing.No idea who their regulars are, or who stopped coming.
4
$
A website just for a menu.Small cafés pay for a whole site just so people can see what they sell.

The fix

NO DOWNLOAD

Nothing to install. Ever. Tap, and the card is already open.

App StoreSign-up formPasswordPush permissions

What Tampkit is

One tap opens everything.

A stamp on the counter. Tap it with any phone and it all opens. No app. Save it to Apple Wallet and it's always there.

The loyalty card page
The loyalty cardStamps, the reward, today's deal.
The menu with photos
The menuPhotos and prices. No website needed.
Special offers
Special offersOne tap to save a deal.

The blueprint

Looks like a tamper. Works like a key.

Drawn first.103.4 mm tall with a Ø59.7 mm tap face, the same size as a real espresso tamper.
Then built.The real 3D model, made from the files we print. Drag it to turn it.
Then pulled apart.Five printed parts, three keyboard switches for the thock, and one NFC tag 2.1 mm above the face.
103.4 mm Ø59.7 mm tap face 1 · Logo capengraved, café logo 2 · Bodyin the café's finish 3 · Switch ring Switches ×3MX, for the "thock" 4 · Press plate 5 · Tap face NFC tag1 mm under the face
TAMPKIT STAMP · REV 4
SIDE ELEVATION · NOT TO SCALE
5 PRINTED PARTS · 3 SWITCHES · 1 TAG
Drag to turn it

The numbers

Height103.4 mmTap faceØ59.7 mmPrinted parts5MX switches3NFC tag1Power, Wi-Fi, cablesNone

Six colours

BlackCharcoalStoneWalnutOakSilver

What the café can change

Logo capTheir logo, engraved
CardName, colours, menu, photos
RewardsHow many stamps earn what
PromosStart time, 7 or 30 days

Four finishes

Their counter. Their colour.

Black

Sharp and quiet on a stainless steel bench.

LIVE

Demo time.

1
Tap the stamp on your deskYour card opens and the stamp lands. No app, no sign-up.
2
Watch the café's side, on our laptopWe change the card, post a special and edit the menu. Your phone updates as we do it.

Sales and traction

We took it to the counter.

No cold emails. We walked into cafés with the stamp in hand and pitched owners and managers face to face.

1Walk inAt a quiet time, stamp in hand.
2Demo at the counterThey tap it on their own phone.
3Leave the brochureSo the owner sees it too.
4Follow upAnswer questions, confirm the reward.
5Live in a weekCard set up, stamp printed.
Kaffeine & Co logo
Kaffeine & CoYes
Zaitouna Café logo
Zaitouna CaféYes
Oriento Coffee House
Oriento Coffee HouseYes
Athena Cake Shop logo
Athena Cake ShopYes
Boston Doughnuts logo
Boston DoughnutsPending

0 said yes on the spot.

Eight cafés. Five yeses, two asking their manager, one no.

The counter at Oriento Coffee House, with an espresso machine and a cake cabinet
ORIENTO COFFEE HOUSE · RIVERWOOD

One of our first yeses.

What they asked us. Word for word.

CAFÉ OWNER"Is it an app?"
✓No. It opens straight in the browser. Nothing to download.
CAFÉ OWNER"Can we add our menu? Can we change it?"
✓Yes. Paste it in once and edit it any time.
CAFÉ OWNER"If we have a special, can we put on any offer we want?"
✓Any item, any price, any start time.
CAFÉ OWNER"Can we customise it how we want?"
✓Their colours, their logo, their stamp icon and their rewards.
ANOTHER CAFÉ"We had paper cards, but no one really uses them. Everyone loses them."
✓That's exactly the problem we fix.

The demandLast week

Cafés want this.

Last week we walked into 8 cafés and pitched Tampkit in person. Here's how every one of them answered.

The tally · 8 cafés

4/ 8

said yes on the spot.

  • Yes 4
  • Asking the manager 2
  • Manager not in 2

The other 4 just need a manager to sign off.

The market already pays for loyalty

Paper cards
$120–360 a year
Stamp Me
$49–199 a month
Square Loyalty
$49–149 a month
Tampkit
$35 a month

Cafés already spend on this. They just don't like the options.

The demand is there. Now we scale it.
$35 a month subscriptionOne-time fee for the stampSign-up and setup fully automated

Competitors.

Paper stamp cards

$120–360/yr reprints
The customer has toCarry a card around
THE PROBLEM
Gets lost.
Ripped, washed, faked. And the café learns nothing about who comes back.

Stamp Me

$49–199/mo
The customer has toDownload an app
THE PROBLEM
Download an app.
The download kills sign-ups before they start.

Square Loyalty

$49–149/mo per site
The café has toSwitch its whole till to Square
THE PROBLEM
Switch your till.
Only works if you move your entire POS over.

Fixes every one of them.

✓Nothing to lose or fakevs paper cards
✓No download, no sign-upvs Stamp Me
✓Works beside any tillvs Square Loyalty
✓The café's own stamp, in their colourvs generic signs and stands
✓Promos and a menu on every cardvs all of them
✓$35 a monthunder Stamp Me and Square

What nobody else does

01

Zero friction.

No app, no account, no download. Tap and it's there.

02

Special offers, whenever they want.

Post a deal any time and it's on every customer's card straight away, right when they're at the counter.

03

The café is in control.

Their card, their colours, their rewards, their menu, their specials. Full control, changed any time from their own dashboard.

04

Easy to learn.

A short YouTube walkthrough shows staff everything in minutes. If they ever get stuck, we're a message away.

Growth

Start local. Then everywhere.

01 · NOW

Our own suburbs.

  • Yagoona, Chester Hill, Riverwood
  • Walk in, stamp in hand
  • Learn what every café needs
02 · NEXT

Every corner.

  • Bakeries and dessert spots
  • Juice bars and restaurants
  • Any business people come back to
03 · THEN

Social media.

Instagram TikTok Facebook
  • Real cafés, real taps
  • Short demo videos, every week
  • @tapback.syd
04 · SCALE

Ship it anywhere.

  1. 1Sign up online, setup is automatic
  2. 2One-time fee for the stamp
  3. 3$35 a month subscription
  4. 4We ship it, anywhere in the world

The build

Draft after draft. 18 days.

Day 1 hand-drawn plan
DAY 1The plan, by hand.NFC object, marketing, the loyalty app and every question we had.
First draft loyalty card for Cocoa & Crumb
DAY 5Draft 1: Cocoa & Crumb.Plain card, gift icons, a pretend café.
DAY 11First 3D-printed stamp.Green, rough, and it worked.
The Tampkit website
DAY 15Website and Instagram.So cafés can find us and see it work.
The card being added to Apple Wallet
DAY 18In Apple Wallet.The final card, next to their bank card.

The $500 in credits

Where the money goes.

$499of $500

Apple Developer account

$149

Lets us issue Apple Wallet passes, so the card sits next to their bank card.

Domain name

$30

A proper Tampkit web address for every café's card and our site.

Premium filament

$170

Café-grade finishes that look right next to an espresso machine.

Strong NFC tags

$150

Stronger tags that read through thick phone cases. The whole business runs on this.

Bars show each item's share of the $500. Apple Developer Program is A$149 a year; the other figures are estimates.

Turn first-timers
into regulars.

One tap. One stamp. No app.

Instagram@tapback.sydFollow ›
Tampkit stamp in walnut