Tap-to-stamp loyalty for cafés, barbers and pizza shops · 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
See how it worksTap the one on your desk ›
Stamp added · 3 of 5
The Tampkit stamp in oak

The founder

Who I am.

Aayan

Aayan

Founder · builds it and sells it
UNSW · DATA SCIENCE AND DECISIONS · 2ND YEAR

Built the card, the staff app, Tampkit HQ and the counter device. Walks into every shop and sells it face to face. Hack48 winner, Founders Pitch Night winner.

BuildsCard, staff app, HQ, the iPhone scan app and the counter device. Designed, coded and 3D printed in house.
SellsWalks in, demos on the owner's own phone, follows up. Every paying shop so far came from a walk-in.
ShipsNew features every week, straight from what owners ask for at the counter.

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 doesn't every café already have one?

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

The hardware

The tamp. Then the Tap Pad.

SketchSizesBreakdown
Version 1 · The TampDrawn first. The same size as a real espresso tamper.
103.4 mm Ø59.7 mm tap face Logo captheir logo Body3D printed Switch ring 3 MX switchesfor the "thock" Press plate Tap face NFC tag
TAMPKIT STAMP · REV 4
5 PRINTED PARTS · 3 SWITCHES · 1 TAG
Version 2 · The Tap PadDrawn first. Flat on the counter, one big key.
170 mm 36 mm Base tray170 × 100 × 12 Top plate170 × 100 × 12.5 4 MX switchesit goes down level Key insert53 × 77 × 3.9 2 NFC tagsØ30, same link Tap key60 × 84, sinks 4 mm
TAMPKIT TAP PAD · V2
4 PRINTED PARTS · 4 SWITCHES · 2 TAGS

Then built. Drag to turn them.

The Tamp
Drag to turn it
The Tap Pad
Drag to turn it

Prototypes

Every version got simpler.

We kept cutting steps until a customer could do it without thinking.

The stampFrom a sketch to one big key on the counter

The first plan, drawn by hand
V0The plan, by hand.An NFC object, the loyalty app and every question we had.
V1First 3D print.Green, rough, and it worked.
The finished tamp in oak
V2The tamp.Looked great. Too small to find, and staff had to hand it over.
The Tap Pad
V3 · NOWThe Tap Pad.Flat on the counter. One big key. Customers tap it themselves.

The cardFrom a pretend café to Apple Wallet

First draft card for a pretend café
V1A pretend café.Plain card, gift icons.
The café's own card with menu and offers
V2The café's own card.Their logo, menu and offers, in the browser.
The card in Apple Wallet
V3In Apple Wallet.Next to their bank card. Nothing to open.
Tampkit Scan iPhone app
V4Tampkit Scan.Staff scan the Wallet card if a tap ever fails.
The Tampkit website
NOWA real website.Tapback became Tampkit.
LIVE

Demo time.

Tap the device on your desk. Watch the café's side update on our laptop at the same time.

The café's side
cafe-staff.tampkit.app
The café's Tampkit page for Oriento Coffee House: stamps today, members and rewards
Every stamp, member and reward, live.
The customer's phone
No app. The card opens on any phone.

Behind the counter

The Discord bots and Admin HQ.

Meet my employees.

Three bots that work in our Discord server, Tampkit HQ, around the clock. Pick one to see what they do.

Discord
#moneyA ping the moment money movesSample messages · real format
Money is typing…
+Message #money
Money#money
Admin HQ · admin.tampkit.app
admin.tampkit.app/usage.html
Tampkit HQ usage page for Cloudflare: Workers requests this month, requests per minute and this month's bill (sample data)
Open Admin HQ ↗
Where I create each business, add its team and manage everything. This is the Cloudflare usage page, shown with sample data.

AI analysis · coming next

Data anyone can read.

Every month, each business gets a plain-English report on its taps. Is the marketing working? Are the operations working? No charts to decode.

AI monthly report Coming next
A sample report with made-up numbers. Click it to read the whole thing.

Go to market

Founder-led. Door to door.

No cold emails. I walk in with the device, demo it on the owner's own phone, and take it from there.

1Walk inAt a quiet time, device in hand.
2DemoThey tap it on their own phone.
3WaitlistSpots open in small batches.
4Follow upAnswer questions, confirm the reward.
5Pilot programA paid pilot while we learn.
6Live in a weekCard set up, device on the counter.
Chambers Fine Coffee logo
Chambers Fine CoffeeNext · Parramatta
Rivareno Gelato logo
Rivareno GelatoNext · Parramatta

0 paying. We started 2 weeks ago.

Cafés, a pizza shop, a cake shop and a barbershop. Chambers Fine Coffee and Rivareno Gelato in Parramatta are next.

12businesses talked to
5paying
2next, in Parramatta
0said no

Not one said no. The rest just haven't got back to us yet.

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

Our first paying café.

51 members and 23 rewards claimed in the last 30 days.

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
✓A counter device customers can findvs generic signs and stands
✓Promos and a menu on every cardvs all of them
✓$30 a monthunder Stamp Me and Square

Growth

We started 2 weeks ago. Here's what's next.

01 · NEXT

10 more pilots.

  • 10 more cafés on the pilot
  • Spread across different areas
  • Sit with owners, fix what they hit
02 · AFTER THE PILOT

Social + UGC.

Instagram TikTok
  • UGC creators film real taps
  • Short videos, every week
  • @tapback.syd
03 · THEN

Ship it everywhere.

  1. 1Cafés, barbershops, pizzerias
  2. 2Sign up online
  3. 3We ship the Tap Pad
  4. 4$30 a month

The $1,000

Where the money goes.

$1,00055% on growth

UGC creators

$400

Local creators film real taps in real shops. Short videos for TikTok and Instagram. Growth is the whole game.

Boosting the best clips

$150

Paid reach for the videos that work, aimed at café, barber and restaurant owners around Sydney.

The next 10 Tap Pads

$250

Filament, switches and NFC tags so every new shop gets a counter device on day one.

A cheap counter scanner

$100

A low-cost scanner that stamps Apple Wallet cards, for shops that want a backup to tapping.

Launch kits

$100

Posters, QR stickers and table cards, so every shop launches loud and customers know to tap.

Bars show each item's share of the $1,000. All figures are our estimates.

Turn first-timers
into regulars.

One tap. One stamp. No app.

Instagram@tapback.sydFollow ›
Try the live demo