Free loyalty program and back office for bars
Friday pays for the week. The other five nights are open anyway.
Saturday fills itself. Tuesday has the same rent, the same staff and a third of the people.

Short answer
Is there a free loyalty app for a bar?
Two different crowds
The weekend crowd is not your crowd
Weekend guests arrive in groups and could be at any bar on the street.
Weeknight regulars know the staff by name and sit in the same seat.
Those regulars are the ones worth keeping, and a new taproom can take them quickly.
A free drink for everyone on Tuesday mostly rewards people who came anyway.
30
days, then Slipping away
Bar regulars tend to come weekly. After 30 days with no stamp, a guest shows as Slipping away on the Stamp card screen.

Free calculator
Split the tip jar fairly at closing
Regulars come back for faces they know, and bar staff stay longer when the split feels fair. Enter each person’s hours and the total. The calculator splits it to the cent.
For the week, the shift, or the day
| Name | Hours | Share |
|---|---|---|
| Alex | 32 | $284.45 |
| Sam | 24 | $213.33 |
| Jo | 16 | $142.22 |
| Total | 72 | $640.00 |
That is $8.89 for every hour worked. The shares add up to the pool exactly, to the cent.
Split by hours worked, the most common way. Check the rules where you are before you share tips: in the United States, for example, federal law says owners, managers and supervisors may not keep any part of employees’ tips.
Stamp card
One stamp a night, a drink on the house
8 stamps earn a drink of their choice.
Stamp once per night, not per drink. That keeps the card about loyalty, not volume.
Eight nights for a drink favors the weeknight regular over the Saturday group.
Choose a reward that fits your local alcohol rules.

An example
A quiet Wednesday
A bar has 40 regulars who said yes to email.
An email on Tuesday evening offers a half-price snack on Wednesday.
If 8 of them come and spend $25 each, that is $200 over the bar.
The snacks cost about $3 each to make, so $24 in food.
The test is simple. Did Wednesday take more than a normal Wednesday, after the snacks? Sales & costs shows it.

What bar owners ask first
“Will this collect ages or ID?”
No. KANJIN keeps a phone number, an optional email and visit counts. Age checks stay at the door.
“Regulars do not want marketing emails.”
Then send few. Nobody is emailed without saying yes, and each guest gets at most 2 marketing emails a week.
“It is too loud and busy to stamp anyone.”
Joining takes one scan of the poster on the bar. After that, a stamp is a phone number and one press.
See it at a counter
Watch “How to Make a Free Digital Stamp Card for Your Shop (No App Needed)” on YouTube
Bar and pub questions
- How do I get more people into my bar on a weeknight?
- Start with the regulars you have, not strangers. Collect emails with consent at the bar. On the paid plan, KANJIN drafts a slow-day email for the quiet night, and you press Send.
- Can I offer a deal to bar regulars only?
- Yes. A slow-day email goes only to guests who gave an email and said yes. Walk-ins who never joined do not get it. Write the deal in the email and honor it at the bar.
- When does KANJIN count a bar regular as gone?
- After 30 days without a stamp. A guest who came every Thursday and then missed a month is worth a friendly note.
- Does a small bar need the paid plan?
- Not to start. The stamp card, unlimited guests and 20 Google review requests a month are free. Pay only when you want the quiet-night and win-back emails.
Also worth a look
Capacity
See what a full Tuesday would be worth, seat by seat.
Sales analyzer
Upload a POS export to see which nights are weakest.
Discount ROI
Check what a happy-hour discount costs against a few free drinks.
Put a stamp card on your bar 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.