In, out, clear.
Someone is standing there waiting while you add things up on your phone. One stray tap and the running total is gone. And when you finally say the number out loud, you have nothing to show for it.
Sumwise keeps every line, shows what the total is made of, and turns it into something you can hand over.
Sumwise isn’t published yet — this becomes the download link the day it goes live.
You’ve added it up twice. They’re still waiting.
Not because the arithmetic is hard. Because the thing in your hand was built to give one answer and forget it — and you need to account for money in front of another person.
Fifteen items in, you glance up to answer a question, and the running figure is gone. Was that last one 470 or 570? There’s no way back — you start again, and they watch you do it.
“That comes to 5,600.” — “Why? It was 5,850 last time.” You have one figure on a screen and nothing behind it, so now you’re recalculating out loud, hoping it lands on the same number twice.
They ask you to send it across. So you read it out digit by digit, or retype the whole list into a message and hope you didn’t drop a line on the way.
Same sum. Only one of them you can defend.
You know the answer. You can’t show where it came from, you can’t correct one line without starting over, and you can’t send it to anyone.
Every line still on screen, the total broken into its parts, and one tap to send it as a card, a PDF or a spreadsheet.
The list stays on the screen. So does your credibility.
Sumwise is built around one job with a beginning and an end — not a ledger you have to keep feeding for the rest of the year.
Add as you go
Type each amount and give it a description if you want one. Every entry stays on screen in a running list, so nothing is ever lost to the last keystroke.
Watch the total build
The total updates live and stays broken down — items, tax, discount, round-off, opening balance. You can always see what the figure is made of.
Hand it over
Share it as an image card, a PDF, a CSV or plain text, with your shop name and logo on it. Then save the session or clear it and start the next one.
Everything a session needs. Nothing it doesn’t.
Every screen below is the app as it actually looks, drawn line for line.
Type a calculation, then tap Add
Every line can be a calculation
A line isn't limited to one number. Type 12 × 45, tap Add, and the working is kept beside the result — so the line still explains itself tomorrow.
- Operators sit in blue, digits in grey — the same muscle memory as any calculator
- Give a line a description before or after you add it
- The running total updates the moment the line lands
Nothing disappears, and the total explains itself
Every entry keeps its own line. Money in reads green, money out reads red, and the figure at the bottom always shows what it's made of — so when someone asks why it isn't what they expected, the answer is already on screen.
- Scroll back through the whole session and correct any line
- Items, tax, discount, round-off and opening balance each on their own row
- Copy, save, clear or share straight from the same screen
Tax both ways, discount either way
Add tax on top or tell Sumwise it's already inside the price and let it work backwards. Take a percentage off, or a flat amount because that's what you agreed. Quick rates are one tap; any figure can be typed by hand.
GST
Tax is added to your total.
Add on top · or already included
Discount
Percent · or a flat amount
Opening balance
An amount carried into this list before any items. Never taxed, never discounted.
The total goes DOWN by this amount. Money you already owe, or already paid out.
Start from what's already owed
Bring an amount into the list before any items — added if they're in credit, subtracted if money is already owed. It is never taxed and never discounted, because it was settled before this session began.
- Sits at the top of the list in its own tinted row, so it's never mistaken for an item
- Carries your own description — “Old dues”, “Advance paid”, whatever fits
- Appears as its own line in the breakdown and on the shared card
Add your shop name in Settings — it appears on every card.
The card people actually forward
One clean image with your name on it — the lines, the breakdown, the total and the amount spelled out underneath. Add a message if you want, then send it wherever the person is.
- Reads like a receipt, so nobody has to ask what the number means
- Goes out through your phone's own share sheet — the app sends nothing itself
- Same total available as a spreadsheet or as plain text
Four ways out
Pick whichever suits the person receiving it. Each carries the same total, and the app tells you plainly what each one is for rather than leaving you to guess.
- Document (.pdf) — print-ready, with your shop logo and name
- Spreadsheet (.csv) — opens in Excel, Sheets and Numbers
- Image card (.png) — the one people actually forward
- Plain text — paste into any chat, no attachment
Appears on every share card
Set it up once for wherever you are
Add a business name and a logo and they sit on every card and PDF you send. Then tell Sumwise how money is counted where you are — and the grouping, the words and even the name of the tax follow.
- Indian grouping reads 95,00,00,000; international reads 950,000,000
- Tax is called GST, VAT or Sales tax depending on the regime you pick, each with its own quick rates
- Theme follows the system, or lock it to light or dark
Save & reopen
Keep a session and come back to it exactly as you left it.
Backup & restore
Move everything to a new phone with one file that stays yours.
Light & dark
A bright counter and a dark back room need different screens.
Amount in words
The total written out, the way a receipt is expected to read.
It can't leak what it never takes.
Sumwise has no account, no server and no internet connection. That isn't a promise we're asking you to trust — the app has no way to send anything anywhere.
Know what you're downloading.
Sumwise is deliberately narrow. If you want the thing on the right, it is genuinely the wrong app and we'd rather say so here.
What Sumwise is
- A calculator for one session of money in and out
- A running list you can scroll back through and correct
- A total broken into items, tax, discount and round-off
- A clean thing to hand someone: image, PDF, CSV or text
- Finished the moment you hand it over
What it isn't
- Not a ledger, khata or udhaar book — it keeps no running account of who owes what
- Not an expense tracker — no categories, months or spending trends
- Not an invoicing app — it issues no numbered invoices
- Not accounting software — no books, no reports, no filing
Anyone who has to say the number out loud
Different work, same thirty seconds of pressure.
At the counter
Six things on the counter, a queue behind, and the customer wants it on WhatsApp before they leave. Total it once, send it, move to the next person.
Collecting from a group
Twenty-three people paid different amounts towards the trip. You need one figure everyone believes — and a list they can check themselves, so nobody has to take your word for it.
Quoting a job
Materials, hours, delivery, tax the right way round. They want it in writing before they’ll say yes, and a screenshot of a calculator won’t do it.
Before you ask
Is Sumwise free?
Yes — free, with no ads and no subscription.
Can I get it on Google Play?
Not yet. Sumwise is not published on Google Play at the moment. This page will carry the download link as soon as it is available.
Does it work without internet?
Entirely. There is no online mode to fall back from — the app never connects to anything. Aeroplane mode, no SIM, no signal: it behaves identically.
Where are my saved sessions kept?
In the app's private storage on your phone, and nowhere else. There is no cloud copy, which also means uninstalling the app removes them — export a backup first if you want to keep them.
Can I move everything to a new phone?
Yes. Export a backup file, move it across however you like, and restore it on the new device. The file is yours — it never passes through us.
Can I use it for a currency other than rupees?
Yes — seven currencies, and the number grouping and the amount-in-words follow whichever you pick.
Does it track credit given to customers?
No. Sumwise is not a ledger or khata app and keeps no running account per person. It totals one session at a time. You can carry a previous balance into a session as an opening balance, but the app does not track it across sessions.
Is it an iPhone app too?
Sumwise is an Android app. There is no iOS release available.
Stop recalculating in front of the customer.
Free, no ads, no subscription, and nothing ever leaves your phone.
Not published yet. Drop us a line and we’ll tell you the day it is.