Free digital stamp card and back office for local shops
Never waste a quiet day again.
Turn slow afternoons into a full room, and ask every customer for an honest Google review.
A free back office for your tablet: a digital stamp card, your daily figures, and shift notes. The paid step asks every customer for an honest Google review and emails your regulars on a quiet day.
What you get
The tools your shop needs, working from day one
Free digital stamp card
Run a loyalty card from your tablet. Nothing for your customers to download.
Automatic Google reviews
After each visit, KANJIN emails the customer once and asks for a Google review. Every customer, never filtered.
Local influencer discovery
Find creators in your city. The invitation is drafted in your words; you send it from your own inbox.
The free back office
Track margins, log shift notes, and keep every figure on your own device.
The back office and the stamp card are free, with no card and no time limit. Reviews, influencers and quiet-day emails are the paid step.
The daily ledger
Every report you need to read your business and settle up with vendors.
Sales, last 7 days
$7,608
From the register, typed at close
Deliveries owed
$820
3 invoices, none settled yet
Regulars on the card
142
38 said yes to email
Sales and deliveries
By day, the last seven days
Free tier
Daily ledger
Track your daily shift notes, margins, and invoices right on your tablet. 100% free and locally secure.
Paid tier · $39 a month
Premium reports
Automated Vendor Settlement. Generate instant weekly or monthly payout reports by vendor, print them for your accountant, and analyze your profit matrix—all without leaving the app.
What it fixes
Five problems every local shop knows
01
The list you never had
You know your regulars by face. You cannot reach one of them.
A paper stamp card goes in a pocket and never comes back. An app is a download nobody makes.
KANJIN’s stamp card runs on a phone number at the counter. Every stamp builds the list, and the list is yours.
At the counter
- Msaid yes
M. Chen
Thu · 8 visits
- Asaid yes
A. Patel
Tue · 3 visits
- Jnew
J. Okafor
Today · 1 visit
Yours. On your device. The paid plan emails them for you.
02
The slow days and the wet ones
Rain empties the room with the prep already bought.
KANJIN reads the forecast and has the email ready before the rain: your delivery link or a special, sent to your regulars in one tap.
Forecast for your address
Today
Clear
Tomorrow
Heavy rain
Thursday
Clear
Delivery offer, ready to go tonight.
Send03
The silent goodbye
For a cafe, 21 days of silence means a regular is gone.
Your best customer has not been in for three weeks and nobody noticed. For a cafe, that is past the point of no return.
KANJIN compares the gap with how often they usually visit and sends a “we miss you” note with your offer in it.
A regular, every Thursday
Then three Thursdays with nothing.
“We miss you.” Your offer inside, sent for you.
04
The creator you never asked
Local creators would post about you. Nobody has asked them.
Finding them is an evening of scrolling, and a cold message is awkward to write.
KANJIN finds YouTube and Instagram creators by your city and niche and drafts the pitch in your words. You send it from your own inbox.
Instagram · your city · your niche
- Open in mail
seattle.coffee.crawl
12.4K followers · works with businesses
- Open in mail
brunchwithmara
8.1K followers · works with businesses
- Open in mail
capitolhill.eats
31K followers
The pitch is drafted in your words. You send it from your own inbox.
05
The review nobody leaves
Happy customers mean to leave a review. Then they forget.
The ones who do write are the angry ones, so your rating tells the wrong story.
KANJIN emails every customer after a visit with your Google link. Asked the same way, never filtered.
After the visit
Review request sent. Two hours after the stamp, with your Google link.
- New review · Yesterday
- New review · Tuesday
- New review · Last week
Every customer is asked the same way. Never filtered by mood.
01
The list you never had
You know your regulars by face. You cannot reach one of them.
A paper stamp card goes in a pocket and never comes back. An app is a download nobody makes.
KANJIN’s stamp card runs on a phone number at the counter. Every stamp builds the list, and the list is yours.
At the counter
- Msaid yes
M. Chen
Thu · 8 visits
- Asaid yes
A. Patel
Tue · 3 visits
- Jnew
J. Okafor
Today · 1 visit
Yours. On your device. The paid plan emails them for you.
Pricing
What is free, and what $39 a month adds
Free forever
Free
No trial clock. Nothing to cancel.
No credit card required.
- Digital stamp card (no app required)
- Free daily ledger: takings, costs and invoices
- Free profit analysis: which items make the money
- Instant break-even & profit calculators
- Shift notes that pop up for the next shift
- Your data stays with you, on your device, forever
- One shop per account
No credit card required.
Automation & growth
$39 a month
Per location. Cancel any time.
Pays for itself if it brings in just one table of two.
- 1-Tap ‘Slow Day’ email promos to regulars
- Automated Google Review requests
- Local Influencer Discovery (IG & YouTube)
- Automated Vendor Settlement & profit reports
- Up to 5 shops on one account, $39 each
- Staff accounts & permissionsComing soon
Billing is not live yet. Early access is free until 31 December 2026; nothing is charged before then, and we say so first. The first 100 shops keep $29 a month for as long as they stay: 100 places are left.
Fill your quiet days without cutting prices
A discount cuts the price for everyone who would have paid anyway. KANJIN emails your regulars only on the days you need them, and finds local creators you can invite.
- Calculators need no account
- The back office is free
- Cancel any time