A digital हिसाब for homestays

A notebook that never forgets a chai.

Bill Inn keeps the running tab for every room, bed and table in your guesthouse. Three taps per order. Bills on WhatsApp. No signal required.

No setup feeNo card requiredWorks offline
Room 3 · Priya SharmaTUE 14 APR
2:06 pmCheck-in · 3 nights2,400
4:10 pm2× ginger chai80
8:15 pm2× masala maggi160
8:15 pm2× water40
Running2,680
Written in three taps, not a pen.
Morning service at a homestay cafe table in the Parvati Valley

MORNING SERVICE · PARVATI VALLEY, HIMACHAL

One stay, start to settle

Three nights in Room 3.

This is everything Bill Inn does, told as one stay. Keep an eye on the tab in the corner: it runs while you read.

Day 1Tuesday 14 April
2:06 pmCheck-in · Room 3 · 3 nights2,400
The welcome message, WiFi password and menu link reach Priya on WhatsApp before her bag hits the bed.
4:10 pm2× ginger chai80
8:15 pm2× masala maggi160
Ordered from her own phone. No app, no login, just a link.
8:15 pm2× water40
Day 2Wednesday 15 April
8:40 am3× ginger chai120
9:05 amLaundry · 1 bag150
No signal from nine to noon. Every entry saved on the phone and synced itself at lunch.
1:30 pm2× masala maggi160
1:30 pm2× water40
Day 3Thursday 16 April
7:55 am2× ginger chai80
The cook saw each order as a WhatsApp ping. Nobody shouted across the courtyard.
6:20 pm2× water40
CheckoutFriday 17 April
10:28 amOne tap. The itemised bill reached Priya before her cab did.paid by UPI
Total · 3 nights3,270
Still running. It settles at the end of this page.
The paper problem

Ten minutes at checkout becomes ten seconds.

A notebook works, until the cook forgets a maggi, a page gets tea-stained, a guest argues at 6am with a cab waiting. Bill Inn is the same notebook, just one that remembers everything.

The notebook Before

Room 3 - Priyacheck-in 2pm
2 maggi160
1 chai40
3 chai120
laundry?
beer (2)400
water x 480
_ _ _ _
bhai kitna hua?
Torn, smudged, argued over. Cook wrote 'chai' once extra. Beer was 2 or 3? Tomorrow's guest adds to the same page.

Bill Inn After

Sharma Guest House#0482
Priya S. · Room 3 · 14 Apr, 2:10pm to 17 Apr, 10:30am
Room 3 × 3 nights₹2,400
Maggi × 4₹320
Ginger chai × 7₹280
Laundry (1 bag)₹150
Bottled water × 6₹120
Kingfisher × 2₹400
Total₹3,670
UPI
PAY
One tap per order. Bill sends on WhatsApp. Paid via UPI. Saved forever.

The notebook is honest work. It just forgets things. This one doesn't.

How it works

Four steps. Three taps per order.

3:52••• 4G
Bill Inn
14TuesdayApril 2026
In your house tonight
Priya Sharma
Room 3 · Day 2
1,200
Arjun Mehta
Room 1 · Day 4
3,640
Lena Fischer
Dorm · Bed 2 · Day 1
420
Rohan Das
Room 5 · Day 3
2,150
Today
2 arriving · 1 leaving
SG
Sharma Guest Housevia Bill Inn · online
Namaste Priya ji! 🙏 Room 3 ready from 2pm. Any dietary preference for dinner?14:02
Hi! Nothing specific, but no onion garlic if possible 🙏14:04 ✓✓
Noted. See you soon!14:04
CHEF PING
Room 3 · 2× ginger chai · 1× maggi17:32
Your bill, Sharma Guest House
Room 3 × 3₹2,400
Maggi × 4₹320
Chai × 7₹280
Laundry₹150
Water × 6₹120
Total₹3,270
UPI: sharma@okicici10:28 ✓✓
Paid! Thank you for the chai and the view 🌄10:30
Type a message
WhatsApp-native

Your guest never downloads an app.

Everything happens in the one app every guest already has open, and every cook already knows how to use. No logins, no OTPs, no installs.

Bill arrives like a normal chat

Itemized, pay-by-UPI, with your name on top. Guests don't have to think about a "platform."

Chef ping for kitchen orders

Cook gets a structured WhatsApp to the kitchen group. No shouting across the courtyard.

Guest history stays

Next time Priya books, you already know she avoids onion-garlic. Send a pre-arrival namaste in two taps.

Built for bad internet

Works offline. Syncs when the signal returns.

The Parvati doesn't care about your 4G plan. Neither does Bill Inn. Every order, check-in, and bill is saved on the phone first. If the bars come back at 3am, everything catches up quietly.

  • Take orders on a phone with no signal. No errors, no retries.
  • Print or share bills offline, send over WhatsApp later.
  • Battery-dead phone? Grab any other phone, log in, pick up exactly where you stopped.
  • Under 12MB. Runs on the cheapest Android.
From the margin

I never ran a guesthouse. I was the other side of the notebook: the guest who kept coming back to these valleys, stayed a week longer than planned, and learned the names of three generations of one family in Kalga before learning any trek route.

What I remember from those houses is not the view. It is the 6am chai. The dog asleep across the kitchen doorway. And always, by the till, a notebook fat with rubber bands, holding every chai and maggi and bed-night of the season.

I watched hosts I admire lose money to that notebook, and lose the argument at checkout even when they were right. So I built them a notebook that cannot forget. It was written in the houses it is for, on the same one bar of signal, and it has one rule: if it is ever slower than the pen, it is wrong.

Nikhil
Parvati Valley, Himachal Pradesh
Pricing

One plan.
Less than a thaali a day.

No tiers. No "enterprise" version. No surprise bill at year-end. You pay one flat price, and that's it.

  • No setup fee
  • No per-guest charge
  • No per-transaction cut
  • No lock-in contract
  • No hidden anything
Full Bill Inn
₹1,000/month
Per property. Unlimited rooms, guests, cooks, orders.
  • Unlimited check-ins & bills
  • WhatsApp bill sending
  • Offline mode + sync
  • Menu, rooms, staff management
  • Guest history forever
  • UPI payments (no extra cut)
  • WhatsApp & phone support
Try free for 30 days
Pay by UPI · Cancel anytime · No card on file
First season

Built where it's used.

Bill Inn is spending its first season behind the counters of homestays and cafes in the Parvati Valley. The owners are still deciding what they think. When they tell us, their words go here. Not before.

A homestay owner on her porch in KalgaKALGA · HOMESTAY
A cafe terrace above the valley in ToshTOSH · CAFE
A trail kitchen at KheergangaKHEERGANGA · GUESTHOUSE
Questions

Ask like a friend. We'll answer like one.

Still not sure? WhatsApp us. The founder himself replies, usually within an hour.

WhatsApp the founder

No. Bill Inn works offline. Take orders, check in guests, checkout: all without signal. When any bar comes back, everything syncs quietly. You don't do anything.

All data is synced to our server when you have signal. Grab any other Android phone, log in with your number and OTP, and you're exactly where you were. No data lost.

Haan. Hindi interface available. The kitchen view has only three buttons: room number, item (with photos), quantity. We built it sitting in Kalga kitchens.

Guest phone numbers stay on your phone and our server, encrypted. We never sell, share, or use them for anything. You can delete any guest's history anytime. Zero marketing calls. Ever.

No. Bill Inn works with or without GST. If you have one, we'll include it on bills automatically. If not, bills go out clean.

Any Android above version 8. We tested on an eight-year-old ₹6000 phone with 2GB RAM and it works fine. iOS coming later this year.

Cancel anytime, in one tap. We'll export all your bills and guest history as a PDF or Excel file, yours to keep. No arguments, no retention calls.

Priya's tab · 3 nights3,270Settled

Every tab settles.
Start yours.

Free for 30 days. No card, no setup fee. Ten minutes to set up your menu, most of it spent making chai.

Start free trial
or WhatsApp +91 98••••••• to get started