Kanakku
கணக்கு

The credit book for the corner shop.

Write what went out on credit, what came back, and nudge on WhatsApp. In Tamil or English.

9:41
Sri Murugan StoresPeelamedu, Coimbatore
வசூலிக்க வேண்டியது · To collect
₹18,460
from 23 customers
Collected this week₹6,240
Gave ₹கொடுத்தேன்Got ₹பெற்றேன்
Today, 18 Sep6 entries
  • செSelvi AkkaRice 5 kg, eggs · 9:32−₹356
  • கKarthikPaid on GPay · 9:10+₹400
  • ஃFathima BeeviMilk, bread · 8:47−₹84
  • முMurugesan AnnaCash at counter · 8:05+₹1,000
9:41
செSelvi Akka
Gaveகொடுத்தேன்Gotபெற்றேன்
₹310Balance becomes ₹1,240
அரிசிRiceஎண்ணெய்Oilபால்Milkபருப்புDal
Hold to add a voice note
“Ponni rice, 5 kg bag”
123456789000
Save gave ₹310

Rajendran is owed ₹18,460. It’s written across 64 pages of one notebook.

Half of page 38 has no dates. And asking Selvi Akka for ₹1,286 in front of the evening queue is the last thing he wants to do.

Sept – credit38
Selvi akka – rice 5kg310
milk 2 pkt56
Karthik (Hope clg)400
Murugesan anna3420 ??
Fathima – bread, milk84
Ravi auto stand2150
Lakshmi teacher960
Selvi akka – oil 1L168
Selvi akka – eggs 6 … 46

Unlock the phone, see who owes what.

9:41
Sri Murugan StoresPeelamedu, Coimbatore
வசூலிக்க வேண்டியது · To collect
₹18,460
from 23 customers
Collected this week₹6,240
Gave ₹கொடுத்தேன்Got ₹பெற்றேன்
Today, 18 Sep6 entries
  • செSelvi AkkaRice 5 kg, eggs · 9:32−₹356
  • கKarthikPaid on GPay · 9:10+₹400
  • ஃFathima BeeviMilk, bread · 8:47−₹84
  • முMurugesan AnnaCash at counter · 8:05+₹1,000
₹18,460 to collect
The total from 23 regulars sits on top, updated with every entry.
Red gives, green gets
Two buttons, one per colour. Nothing else on the screen looks like them.
Today, in order
Each entry shows who, what and when, so the evening tally takes a minute.

One page per customer.
No more page 38.

9:41
செSelvi Akkaசெல்வி அக்கா · Ganapathy
She owes you₹1,286Last paid ₹50013 Sep, 5 days ago
Remind on WhatsApp
EntryAmountBalance
  • 18SepEggs, 6முட்டை−₹461,286
  • 18SepRice, 5 kgஅரிசி−₹3101,240
  • 17SepMilk, 2 packetsபால்−₹56930
  • 15SepSugar 2 kg, tea powderசர்க்கரை, டீ தூள்−₹222874
  • 13SepPaid on GPayபணம் வந்தது+₹500652
  • 11SepToor dal, 1 kgதுவரம் பருப்பு−₹1421,152
  • 10SepSunflower oil, 1 Lசூரியகாந்தி எண்ணெய்−₹1681,010
Gave ₹கொடுத்தேன்Got ₹பெற்றேன்
She owes you
₹1,286
Last paid ₹500 on 13 Sep
Remind on WhatsApp
Every line carries the running balance
18SepRice, 5 kgஅரிசி−₹310bal ₹1,240

Dated lines, Tamil item names and a running balance. Nothing to argue about at the counter.

9:41
செSelvi Akka
Gaveகொடுத்தேன்Gotபெற்றேன்
₹310Balance becomes ₹1,240
அரிசிRiceஎண்ணெய்Oilபால்Milkபருப்புDal
Hold to add a voice note
“Ponni rice, 5 kg bag”
123456789000
Save gave ₹310

Type it like a calculator.

₹310, tap Rice, save. Built for one thumb at a counter with a queue.

Item quick-picks
அரிசி, எண்ணெய், பால், பருப்பு: the four things people take on credit most.
Keys a thumb can’t miss
Twelve keys, each wider than a ₹10 coin and a hard edge you can feel.

A polite nudge in Tamil, with a UPI link.

Then watch the week’s collections climb.

9:41
This week 12–18 Sep
வசூல் · Collected₹6,240↑ ₹1,180 on last weekநிலுவை · Pending₹18,46023 customers
GotGave on credit
MTWTFSS
Owes the mostSee all 23
  • முMurugesan Anna42 days, no payment₹3,420
  • ரRavi, auto standPaid ₹200 on 2 Sep₹2,150
  • செSelvi AkkaReminded today₹1,286
9:41
Reminder previewதமிழ்EN
செTo Selvi AkkaWhatsApp · 98422 31457₹1,286 due
Today

வணக்கம் செல்வி அக்கா,
ஸ்ரீ முருகன் ஸ்டோர்ஸில் உங்கள் கணக்கில் ₹1,286 நிலுவையில் உள்ளது. வசதிப்படும்போது கீழே உள்ள லிங்க் மூலம் செலுத்தலாம்.
நன்றி, ராஜேந்திரன்

₹Pay ₹1,286 by UPIkanakku.app/p/srimurugan-selvi
9:41
Tone
PoliteFestival wishPlain
Attach UPI pay link
Send at 8:30 pm, after the rush
Send on WhatsApp

Keys you can hit without looking.

Each key has an ink outline and a hard edge beneath it. Press, and it sinks onto that edge.

Gave · கொடுத்தேன்அரிசி · Rice
₹310
123456789000
Pressed
Sinks 8px, with a haptic tick.
Resting, 9px edge
4
Pressed, 1px edge
4
Two colours only
Chilli saves what you gave. Leaf saves what you got.
Save gave ₹310 Save got ₹500

Nothing left to write up tonight.

Rajendran puts it in at the counter, while the customer is still standing there. When the shutter comes down, the day is already added up.

Gave · கொடுத்தேன்செ Selvi Akka
₹310
அரிசி · Rice 5 kg · balance becomes ₹1,240
123456789000
Save gave ₹310
KanakkuThe credit book for the corner shop.A Goat Scale concept
Sri Murugan Stores · Peelamedu, Coimbatore · 18 SeptemberKanakku

Every rupee has a name.

₹18,460out on credit from one shop, written across 64 pages of one notebook.
Who the money is withBalance on 18 Sep
முMurugesan Anna42 days, no payment₹3,420
ரRavi, auto standPaid ₹200 on 2 Sep₹2,150
செSelvi AkkaReminded today · last paid ₹500 on 13 Sep₹1,286
20Twenty more regularsOne page each, dated, in Tamil or English₹11,604
வசூல் · Came back this week
₹6,240
GotGave on credit
MTWTFSS
Twenty-three ledgers, one total, and a polite WhatsApp reminder when a page has waited too long.A Goat Scale concept
Kanakku design system
Mango
#FFC23D
Ink
#241A0E
Paper
#FFF6E0
Chilli · gave
#E4472F
Leaf · got
#1C9A5E
Clay
#86704F
Baloo Thambi 2 · display, 700–800
கணக்கு
Aa ₹18,460
Hind Madurai · body, 400–700
வசூலிக்க வேண்டியது
To collect from 23 customers
Tamil and English share one face and one line height.
Gave ₹கொடுத்தேன்Got ₹பெற்றேன்
78
அரிசிRiceஎண்ணெய்Oilபால்Milk
தமிழ்EN₹1,286 due
செSelvi AkkaRice 5 kg · 9:32−₹310
Rows 56ptKeys 58ptRadius 16–28Edge 5px
Kanakku · UI concept · 8pt grid, 44pt touch targetsDesigned by Goat Scale