Invoice and estimate app for iPhone

Send the invoice.
Get paid.

Sumocat shows you when your client opens it, emails reminders on the due date and 3, 7 and 14 days after, and lets them pay by card or Apple Pay from the invoice.

Coming soon to the App StoreTry it on this page

Free to download
No account needed
Works offline

Who it’s for

Made for people who price the job on site

Contractors, trades, cleaners, photographers and freelancers. If you quote by the hour, the visit or the square foot, Sumocat already speaks your units.

Item	Qty	Rate	Amount
Kitchen cabinet install1 job × $1,850.00	1 job	$1,850.00	$1,850.00
Countertop template and fit1 job × $2,400.00	1 job	$2,400.00	$2,400.00
Hardware allowance18 ea × $12.00	18 ea	$12.00	$216.00

Subtotal$4,466.00

Sales tax (5%)$223.30

Total$4,689.30

Deposit due on acceptance. Balance billed at cabinets installed and at the final walkthrough.

Contractors

Invoice and estimate app for contractors

Item	Qty	Rate	Amount
Service call1 visit × $95.00	1 visit	$95.00	$95.00
Labor2.5 hr × $110.00	2.5 hr	$110.00	$275.00
Water heater thermostat1 ea × $64.50	1 ea	$64.50	$64.50
Shutoff valve2 ea × $18.75	2 ea	$18.75	$37.50

Subtotal$472.00

Sales tax (8.25%)$38.94

Total$510.94

Plumbers

Invoice app for plumbers

Item	Qty	Rate	Amount
Weekly office clean4 visit × $140.00	4 visit	$140.00	$560.00
Window cleaning, interior1 job × $120.00	1 job	$120.00	$120.00
Supplies1 ea × $32.00	1 ea	$32.00	$32.00

Subtotal$712.00

Total$712.00

Cleaners

Invoice app for cleaning businesses

See an example

Invoice and estimate app for electricians Invoice and estimate app for landscapers Invoice app for handyman businesses Estimate and invoice app for painters Invoice app for photographers Invoice app for freelancers Invoice and estimate app for HVAC

Try it

A calculator that writes the invoice

Type an amount and tap to add it as a line. Do some math in between if you like. Then tap the action key. This one works on this page, with your keyboard too. Nothing you type leaves your browser.

SUMOCAT

Type an amount, like 120.

Building your document

Tax

Your business

Invoice #1

Amount due

$0.00

Billed to

Client

Issued Today

Due In 30 days

Item	Qty	Rate	Amount

Subtotal$0.00

Total$0.00

Lines you add on the calculator print here.

How it works

From the first figure to the money in

Send the invoice, know when it is opened, follow up and get paid. Then quote, bill retainers and keep track, all from your phone. Parts marked PRO are Sumocat Pro. Everything else is free.

01Send it
Write it up and send it
The action key opens the invoice with your amounts already in it. Add descriptions, units and taxes, pick the client, and share it as a PDF or a link, or email it with Pro.
- Units and taxes
- Pick or add the client
- PDF and share link
How the calculator works
Send Invoice #23
PDFLinkEmail
02Know where it stands
See the moment it is opened
Sumocat tells you when your client opens the invoice link or downloads its PDF. The invoice shows each step, from created and sent to viewed and paid.
- A notification when it is opened
- Created, sent, viewed, paid
- Free with a free account
SUMOCATnow
Invoice viewed
Brightside opened invoice #0042
03Follow upPRO
Reminders that go out for you
A short, polite email on the due date, then 3, 7 and 14 days after, while the invoice stays unpaid. Replies come to you, and it stops once the invoice is paid.
- Due date, 3, 7 and 14 days
- Replies to you
- Pause any invoice
Payment reminders
Settings
Payment reminders
Send payment reminders
Sumocat emails your client on the days below until the invoice is paid. The last one goes out at 14 days overdue.
Schedule
On the due date
3 days overdue
7 days overdue
14 days overdue
Reminders go to the client email on the invoice, reply to your account email, and link to the online invoice. You can turn them off for a single invoice on its detail screen.
Inbox · Beacon Property Group
Reminder: Invoice #21 from True Coat Painting is overdue
$2,150.00 was due Oct 28, 2026. View and download your invoice online.
View and Pay Invoice
04Get paidPRO
A Pay button on every invoice
Connect your own Stripe account and clients pay by card, Apple Pay or Google Pay from the invoice link. The payment is recorded, the invoice marked paid, and Sumocat lets you know.
- Your Stripe account
- No cut taken
- Installments too
Online payments
Paid online
Invoice #22 · Dan Okafor
Card through Stripe$570.00
05Keep the record
The whole history of every invoice
Every send, open, reminder and payment is logged on the invoice with its date and time. Opens show the device, and emails show the address they reached.
- Sent, opened, reminded, paid
- Dates and times
- Free
06Quote the jobPRO
Estimates with a deposit
Split an estimate into a deposit and milestones. Your client accepts on its web page, and Sumocat creates the deposit invoice the moment they do.
- Deposits and milestones
- Accepted online
- Convert to an invoice
Estimates
RAMOS RENOVATIONS
Estimate #23$4,689.30
Due on acceptance$1,500.00
Accept and pay $1,500.00 deposit
Powered by Sumocat
07Regular workPRO
Retainers that bill themselves
Set up the client, lines and schedule once. Each invoice is created on time and emails itself, or waits as a draft for you to check.
- Any schedule
- Auto send or draft
- Ends when you say
Recurring invoices
RECURRINGActive
Monthly retainer, Mitchell & Co
$2,500.00 · Every month
Next: Dec 1, 2026 · emails itself
08CostsPRO
Snap the receipt
The total, store, date, taxes and every item fill in from the photo, read on your phone and offline. Typing an expense in stays free. Mark one billable when a client pays it back.
- Read on your phone
- Taxes and every item
- Photo backup
Receipt scanner
HARBOR BUILDING SUPPLY
Nov 3, 2026 · 14:32
3 items115.49
GST12.95
TOTAL128.44
09The numbers
See how the business is doing
Money in, what you are owed and profit for any period, free. Pro adds six detailed reports, from sales tax to how many estimates you win, with export.
- Free overview
- Sales tax ready to file
- CSV and PDF export
Reports
Reports
MonthQuarterYearAll
Money in · This year
$48,210↑ 18%vs last year
$7,410 more than last year.
All reports
Money In
What you actually got paid
$48,210.00
32 payments
Owed to You
Who owes you and how late
$7,340.00
$7,340.00 overdue
Profit
What you kept after expenses
$39,880.00
after expenses
Top Clients
Who your best clients are
Mitchell & Co
24% of collections
Sales Tax
Tax collected, ready to remit
$2,410.50
GST · PST
Estimates
How many quotes turn into work
62% won
13 of 21 accepted
NEEDS ATTENTION
4 invoices worth $7,340 are overdue. The oldest is 12 days late.
10Everywhere
Free sync, and it works offline
Everything saves on your phone first, so you can work without signal. Sign in when you like for free backup and sync across your devices. No caps.
- No account needed
- Free sync
- No caps
Menu
Invoices
Client or number
AllDraftSentPaidOverdue
Sarah Mitchell
Invoice #23 · Nov 3
$4,689.30
paid
Dan Okafor
Invoice #22 · Oct 28
$570.00
sent
Beacon Property Group
Invoice #21 · Oct 14
$2,150.00
overdue
Harbor Cafe
Invoice #20 · Oct 8
$1,825.00
paid
Mia Chen
Invoice #19 · Sep 29
$960.00
paid
Northside Dental
Invoice #18 · Sep 22
$3,410.00
draft
Ridgeline Roofing
Invoice #17 · Sep 16
$6,240.00
paid
Ana Duarte
Invoice #16 · Sep 9
$1,180.00
paid
Synced
Backed up and on every device you sign in on

Cancel

New Invoice

Client

Sarah Mitchell

sarah@mitchellco.com

Items

Kitchen cabinet install

1×1,850$1,850.00

Countertop template and fit

1×2,400$2,400.00

Hardware allowance

18×12$216.00

Add item

Taxes

GST

Total$4,689.30

Create Invoice

Back

Invoice #0042

Awaiting payment · due in 11 days

$1,680.00

Brightside · due Nov 23, 2026

Created

Nov 9

Sent

Nov 9

Viewed

Nov 12

Paid

Brightside

Maya Chen

Project work

1 × $1,200.00

$1,200.00

Expenses

1 × $480.00

$480.00

Total

$1,680.00

Settings

Payment reminders

Send payment reminders

Sumocat emails your client on the days below until the invoice is paid. The last one goes out at 14 days overdue.

Schedule

On the due date

3 days overdue

7 days overdue

14 days overdue

Reminders go to the client email on the invoice, reply to your account email, and link to the online invoice. You can turn them off for a single invoice on its detail screen.

Settings

Online payments

Accepting payments

Clients see a Pay button on every invoice you send while it has a balance due.

Accept payments

Account

ChargesEnabled

PayoutsEnabled

Open Stripe dashboard

Refunds, disputes, payouts and payment methods are managed in your Stripe dashboard.

Back

Invoice #0042

Paid Nov 23

$1,680.00

Brightside · issued Nov 9, 2026

Created

Nov 9

Sent

Nov 9

Viewed 3×

Nov 23

Paid

Nov 23

Paid $1,680.00Balance $0.00

History

Paid online

$1,680.00

Nov 23, 10:15 AM

Viewed 2 times

iPhone, Safari

Nov 23, 10:12 AM

Reminder sent

Delivered to maya@brightside.co

Nov 23, 9:00 AM

Viewed

iPhone, Safari

Nov 12, 9:41 AM

Emailed

Delivered to maya@brightside.co

Nov 9, 4:12 PM

Show all (6)

Back

Estimate #23

Sarah Mitchell

Issued Nov 3 · Expires Dec 3

Sent

Payment schedule

Adds up to the total

Deposit

Due when accepted

$1,500.00

Cabinets installed

Billed manually

$2,000.00

Final walkthrough

Due Dec 15, 2026

$1,189.30

Each installment becomes its own invoice. The deposit is billed the moment your client accepts.

Subtotal$4,466.00

GST 5%$223.30

Total$4,689.30

Recurring

Harbor Cafe

Every month · Next: Dec 5, 2026

$450.00

Active

Northside Dental

Every month · Next: Dec 12, 2026

$1,200.00

Active

Mitchell & Co

Every month · Next: Dec 1, 2026

$2,500.00

Active

Ridgeline Roofing

Every 3 months · Next: Jan 8, 2027

$680.00

Active

Cancel

New Expense

Amount

128.44 CAD

Harbor Building Supply

CategorySupplies

DateNov 3, 2026

Billable to a client

Receipt

HARBOR BUILDING

Lumber 2x4 ......... 64.20

Screws ................ 18.79

Caulk .................. 32.50

GST ........... 12.95

TOTAL ....... 128.44

Rescan receiptChoose a different photo

Add Expense

Reports

MonthQuarterYearAll

Money in · This year

$48,210↑ 18%vs last year

$7,410 more than last year.

All reports

Money In

What you actually got paid

$48,210.00

32 payments

Owed to You

Who owes you and how late

$7,340.00

$7,340.00 overdue

Profit

What you kept after expenses

$39,880.00

after expenses

Top Clients

Who your best clients are

Mitchell & Co

24% of collections

Sales Tax

Tax collected, ready to remit

$2,410.50

GST · PST

Estimates

How many quotes turn into work

62% won

13 of 21 accepted

Invoices

Client or number

AllDraftSentPaidOverdue

Sarah Mitchell

Invoice #23 · Nov 3

$4,689.30

paid

Dan Okafor

Invoice #22 · Oct 28

$570.00

sent

Beacon Property Group

Invoice #21 · Oct 14

$2,150.00

overdue

Harbor Cafe

Invoice #20 · Oct 8

$1,825.00

paid

Mia Chen

Invoice #19 · Sep 29

$960.00

paid

Northside Dental

Invoice #18 · Sep 22

$3,410.00

draft

Ridgeline Roofing

Invoice #17 · Sep 16

$6,240.00

paid

Ana Duarte

Invoice #16 · Sep 9

$1,180.00

paid

Send Invoice #23

PDFLinkEmail

Your client’s side

No app, no account, no printing

Your client opens a link to a clean copy of the estimate or invoice, on any phone or computer, with the PDF one tap away.

Accept an estimate PROOne tap, then a review step. The date and time are recorded.
The deposit invoice opens next PROCreated and emailed the moment they accept.
Pay by card or Apple Pay PROThrough your own Stripe account, straight to you.
You hear about it A push when they view, accept or pay.

AI connectorPRO PLUS

Run your books from Claude or ChatGPT

Connect Sumocat once and ask what you are owed, chase a late payer, or have it draft the next invoice and send it. It only ever sees your own account.

create_invoice
send_invoice
send_estimate
report_revenue
report_outstanding
report_tax
report_top_clients
report_estimate_win_rate

How the AI connector works

Everything in it

What Sumocat does

Pricing the job

Calculator first Type the numbers the way you would on any calculator. Each amount you add becomes a line item, and one key turns them into an invoice or estimate.

Estimates with a payment schedule Quote the job with a deposit and milestones. Each part becomes its own invoice when it is due.

Saved items and units Keep a price book of the work you do, with units like hr, sq ft or day. Add several to a document at once.

Taxes and discounts Add one or more taxes, like GST and PST, and a discount by percent or amount. Totals round the same way on every device.

Getting paid

PDF and share link Share a clean PDF from your phone, or a link to a web copy your client can open anywhere. Then mark it sent.

Email from the app PROSend an invoice or estimate to your client in one tap, or pick the day and time an invoice goes out. Replies come to your own inbox.

Online acceptance PROClients accept an estimate on its web page. Sumocat records when, then creates the invoices for you.Online payments PROA Pay button on your invoices, through your own Stripe account. Paid invoices are recorded for you.Payment reminders PROA polite email on the due date, then 3, 7 and 14 days after, until the invoice is paid.Recurring invoices PROBill a retainer or a regular service on a schedule. Each invoice can send itself or wait as a draft.

Keeping track

Expenses Type in what the job cost, with its taxes, tip, payment, supplier tax number and items. Mark an expense billable to a client.Receipt scanner and backup PROScan a receipt and Sumocat reads the total, date, merchant, taxes, supplier tax number, payment and every item, on your phone and offline. Receipt photos back up to the cloud.Reports overview Money in, what you are owed and profit at a glance, with a trend chart.Six detailed reports PROMoney In, Owed to You, Profit, Top Clients, Sales Tax and Estimates, with CSV and PDF export.

Free sync and backup Sign in to back up every record and keep it in step across your devices. No caps.

AI connector PRO PLUSConnect Claude or ChatGPT to ask what you are owed, draft invoices and send them from the chat.

Free and Pro

Free for the work. Pro for the follow up.

Everything you create is free, with no caps. Sumocat Pro is an optional subscription for the things Sumocat does for you: sending, collecting and chasing. Pro Plus brings Pro to up to 5 businesses you own and adds the AI connector.

Free

Everything you make

Invoices, estimates, clients and expenses, with no caps
The calculator and saved items
PDF export, share links and marking documents sent
Expense details typed by hand: taxes, tip, payment and items
The reports overview
Cloud sync and backup when you sign in
Works offline, no account needed to start

Sumocat Pro PRO

Everything Sumocat does for you

For one business

Email invoices and estimates from the app
Scheduled send: write an invoice now and pick the day and time it goes out
Online estimate acceptance that creates the invoices
Online payments through your own Stripe account
Automatic payment reminders
Recurring invoices
The receipt scanner: total, taxes, supplier tax number, payment and every item, read on your phone
Receipt photo backup
Six detailed reports with CSV and PDF export
The full action key icon library

Sumocat Pro Plus PRO PLUS

Pro for each of your businesses

For a company and a sole proprietorship, or any mix of up to 5 businesses you own. Each one stays separate.

Everything in Pro, in each business you own
Up to 5 businesses, each with its own clients, documents, numbering, settings, logo and Stripe account
Add businesses and switch between them in the app
A combined report of money in, what you are owed and profit across all of them
The AI connector for Claude and ChatGPT

Free, Pro and Pro Plus, in detail

Your data

Your books stay yours

Read the privacy policy

Saved on your phone first

Works without signal or an account. Your records stay on the phone until you sign in to sync.

Receipts read on device

The Pro receipt scanner reads on your iPhone. Photos are only uploaded if you turn on Pro backup.

No ads, no selling data

Usage data never includes names, amounts or what you type, and one switch turns it off.

Delete it all

Delete your account in the app and your records go with it.

Free tool

Need one invoice right now?

Make a PDF invoice or estimate in your browser. No sign up, and the totals round the same way the app does.

Invoice generator Estimate generator

Questions

Something else? Write to support@sumocat.app.

Is Sumocat free?

Yes. Invoices, estimates, clients, expenses, PDF export, share links and cloud sync are free with no caps. Sumocat Pro is an optional subscription that adds the things Sumocat does for you, like emailing documents, online payments, reminders and the receipt scanner.

Can I use Sumocat for more than one business?

Yes, with Sumocat Pro Plus. It covers up to 5 businesses you own, such as a company and a sole proprietorship, with every Pro feature in each. Each business keeps its own clients, invoices, estimates, numbering, settings, logo and Stripe account. Switch between them in the app, and see money in, what you are owed and profit across all of them in one combined report. Sumocat Pro covers one business.

Do I need an account?

No. Sumocat works fully on your iPhone without an account. Sign in with Apple or email when you want free cloud backup and sync across devices.

Does it work offline?

Yes. Everything is saved on your phone first, so you can create invoices, estimates and expenses without signal. Changes sync when you are back online.

How do my clients receive an invoice?

Share the PDF or a link to a web copy from your phone, by text, email or any app. With Sumocat Pro, email it from the app in one tap, or pick the day and time an invoice goes out. Your client needs no app or account to open it.

Can clients pay online?

With Sumocat Pro, connect your own Stripe account and your invoice links get a Pay button for cards, Apple Pay and Google Pay. Payments go straight to you; Sumocat takes no cut.

Is Sumocat on Android or the web?

Sumocat is an iPhone app. Your clients open invoices and estimates in any browser, on any device.

Which currencies and taxes does it support?

Each invoice or estimate can use its own currency, and carry one or more taxes such as GST and PST or state and local sales tax.