Free loyalty program and back office for cafes

Three weeks without your regular, and they have found somewhere else.

Your best customers come in four or five mornings a week. A free digital stamp card shows who they are, and who has gone quiet.

A customer at a cafe counter giving their phone number to staff.

Short answer

Is there a free loyalty app for a cafe?

Yes. KANJIN (kanjin.app) gives a cafe a digital stamp card on the customer's phone number, with no app for them to download, no limit on customers and no time limit. The free plan also sends up to 20 Google review requests a month and one email a month to as many as 150 customers, everyone asked the same way. The paid plan is $39 a month per shop and is never needed to run the card.

A daily habit

A coffee habit breaks without a word

Cafe regulars rarely say goodbye. They start a new job, or a new place opens on their walk.

You notice the empty stool by the window weeks later, if you notice at all.

By then the morning cup is bought somewhere else, and the habit has moved with it.

A paper card cannot warn you. It sits in a wallet and reports nothing back.

21

days, then Slipping away

A cafe regular can drift in under a month. The Stamp card screen moves anyone with no stamp for 21 days into Slipping away.

A mock of the email screen: a slow-day email already written for you, with a Send button.

Stamp card

The 10-stamp coffee card, on a phone number

10 stamps earn a free coffee of any size.

Ten stamps for a free drink is the card most coffee drinkers already know.

Staff type the customer’s phone number and press once. That is the stamp.

Customers can also scan the counter poster and join from their own phone. There is nothing to download.

A mock of the regulars list on the stamp card screen: each customer with their stamps, and customers flagged as having stopped coming.

Free calculator

What does a free coffee every 10 visits really cost?

A 10-stamp card looks like a 10% discount. It costs less, because the reward costs you beans and milk, not the menu price. Put in your own numbers and see the true figure.

$

What one customer usually spends

%

What is left after the cost of what you sold

$

What you pay for it, not what you charge

Visits before the reward

How often a regular comes in

Your card is really a discount of

2.5%

of everything that customer spends

It costs this share of the profit

3.3%

$36.25 left of $37.50

Extra visits to pay for itself

1

visits the card must cause that would not have happened

10

Put this many on the card

A longer card earns you more before the giveaway, but past one free in 10 a card stops being worth carrying. Your card is already this long.

This card is affordable: the reward takes 3.3% of the profit it produced, under the 20% worth worrying about. A regular fills one about every 1.3 months.

A free item costs you what it cost you, not what you charge for it. A $5 coffee at 75% margin costs $1.25 to give away, which is why a ten-stamp card is nearer 2.5% off than 10%.

We use your address once, to send this result, and then we are done with it. You are not added to any list and we will not email you again.

Open the Stamps per reward page

An example

One regular, one month

A regular buys a $5 latte four mornings a week.

That is about 17 visits, or $85, in a month.

With 10 stamps for a free coffee, they earn about 1.7 drinks a month.

If a drink costs you $1.20 in coffee and milk, the card costs about $2 a month.

If that regular drifts away instead, the cafe loses about $85 a month in sales. Set that beside the $2.

A mock of the AI replies screen: a customer’s review, the reply KANJIN drafts for it, and the Approve & reply button.

What cafe owners say before they try it

  • “My regulars already carry a paper card.”

    Keep it if it works. A paper card cannot show who stopped coming. The digital one shows each regular’s last visit beside their number.

  • “The morning line leaves no time for this.”

    A stamp is a phone number and one press. Counter Mode locks the tablet to the stamp card with a PIN.

  • “I already pay for a POS.”

    KANJIN works next to any POS. It does not read your sales, and your POS company has nothing to set up.

See it at a counter

The whole thing, start to finish: the poster, the first customer, the first stamp and the reward.

Watch “How to Make a Free Digital Stamp Card for Your Shop (No App Needed)” on YouTube

Cafe questions, answered

How many stamps should a coffee loyalty card have?
Ten is the most familiar, and customers understand it at once. Fewer stamps cost you more per visit. KANJIN takes 3 to 20, so you can match the card to your prices.
When should I worry that a cafe regular has stopped coming?
KANJIN uses 21 days for a cafe. Someone who came most mornings and then missed three weeks has usually found a new spot. A note after two months feels like a stranger writing.
Is the cafe stamp card really free?
Yes, with unlimited customers and no time limit. The free plan also has 20 Google review requests a month and 5 drafted review replies.
Can I email regulars about a new seasonal drink?
The free plan sends one email a month to up to 150 people who said yes. The paid plan allows 2 sends a week, to up to 1,000. Email works in every country.

Also worth a look

  • Stamp card

    Print a paper card and a matching counter poster while you switch over.

  • Break-even

    Find how many cups a trading day must sell before rent and wages are covered.

  • Review reply

    Paste a review about a slow line and get a calm reply to edit.

Put a stamp card on your cafe counter this week

Type your email and the form opens with it filled in. Nothing is sent from here.

No card, no time limit. Or open the form empty.