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App Store Apps > Business > Solo Invoice - Invoice Maker
Solo Invoice - Invoice Maker icon

Solo Invoice - Invoice Maker

by Daisuke Yamaguchi · Business · $0.99
On the App Store since August 2026 · Data updated 2026-10-31

Solo Invoice - Invoice Maker is made and published by Daisuke Yamaguchi. AppBrain is an independent app data site and isn't affiliated with Daisuke Yamaguchi. The app name, icon, screenshots and description belong to Daisuke Yamaguchi and are shown as published on the App Store.

AppBrain's verdict

Last updated
October 23, 2026
Size
4.36 MB
Official page on the App Store

User feedback

Ratings and reviews on the App Store

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Store listing

By Daisuke Yamaguchi, from the App Store
Solo Invoice - Invoice Maker Screenshot 1 of 6
Solo Invoice - Invoice Maker Screenshot 2 of 6
Solo Invoice - Invoice Maker Screenshot 3 of 6
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Solo Invoice - Invoice Maker Screenshot 6 of 6
Screenshots by Daisuke Yamaguchi, from the the App Store listing
Description by Daisuke Yamaguchi Written by the developer, not by AppBrain. Click to read.
There is no cap on line items.
Nothing stops at 26 rows, and nothing gets cut off on page two.
Estimate, delivery note, invoice and receipt are all made from the same rows in a single tap.

Solo Invoice is an invoicing app for one-person businesses – freelancers, contractors and side-hustlers who do their own paperwork. No account, no cloud. What you type stays on your device.

NEVER RUN OUT OF ROWS
- Unlimited line items; A4 pages are added automatically
- The date column is free text: leave it blank or write a period
- Units such as hrs, days or pcs
- Heading rows to group work into sections
- Drag to reorder

FOUR DOCUMENTS, ONE SET OF ROWS
- Invoice / Estimate / Packing slip / Receipt
- Turn a estimate into an invoice, or an invoice into a receipt, in one tap

SALES TAX, YOUR WAY
- Sales tax differs by state and county, so you can enter any rate (e.g. 8.875%)
- Per-line tax rates, with a summary per rate
- Tax exclusive, tax inclusive, or no tax
- You choose the rounding: down, up or half up

SALES SUMMARY (NEW IN 1.4)
- Open it from the chart button in the documents list
- See a calendar year, then tap a month to drill down
- Total billed (incl. tax), received vs outstanding, and how many invoices are overdue
- A bar chart of every month
- Taxable amount and sales tax for each rate – handy for your sales tax filings
- Your top clients by amount billed
- Grouped by currency if you invoice in more than one
- Only invoices count; estimates, packing slips and receipts are left out
- Export the summary as CSV. It is all worked out on your device and nothing is sent anywhere

PICK A DESIGN (NEW IN 1.2)
- Classic, Modern or Minimal
- Six accent colors: ink, navy, green, crimson, orange, violet
- The preview updates as you choose, and every PDF follows it

KNOW WHAT HAS BEEN PAID (NEW IN 1.2)
- Expected payment date and paid date on each invoice
- "Paid", "Overdue" and "Due soon" at a glance in the list
- Filter to unpaid invoices only
- Payment records stay on the device and never print on the PDF

ENTER IT ONCE
- Business name, address, phone, email, and your EIN
- Payment details: bank, routing number (ABA), account number and SWIFT
- Logo and stamp/signature image
- Automatic document numbers

SEE IT BEFORE YOU SEND IT
- Check every page of the PDF in the app before you share it
- Share by Mail, Messages, AirDrop, Files or AirPrint

ALSO FOR OTHER COUNTRIES
- Switch any document to US, UK, Australian, German, French, Dutch, Swedish, Finnish, Hong Kong or Japanese format – currency, tax names and rates, IDs, payment fields and the language of the PDF change with it
- It makes PDF invoices. It does not create e-invoices (such as Peppol)

NO ADS
- No ad SDK, no banner covering your buttons

PRICING
- A one-time purchase. Nothing more to pay afterwards
- No in-app purchases and no subscription
- Every feature is available from the start, with no caps on documents or line items

YOUR DATA
- What you enter never leaves your device. To improve the app, only anonymous usage data (such as which screens are opened) is counted with Google Analytics (you can turn this off in Settings).
- No sign-up
- Export a JSON backup before you change phones, and CSV for your bookkeeping

Publisher: Sauna Inc.
Support: https://tokyo357.com/support
Privacy: https://tokyo357.com/privacy
Official page on the App Store

Safety and technology

Found in the app by AppBrain
Price
$0.99
App size
4.36 MB
Content rating
Everyone

Technologies used by Solo Invoice - Invoice Maker

Releases

Updates seen on the App Store
Version
1.5
Launched
August 2026

No changelog data

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Rankings

App Store top charts
Highest rank
#7
Chart
Top Paid
Business
Country
Japan

App Store Rankings for Solo Invoice - Invoice Maker

Top rankings

Rank Country Category List
7 Japan Business Top Paid

Ranking history in Japan

About the app and developer

About Solo Invoice - Invoice Maker

Solo Invoice - Invoice Maker is a business app developed by Daisuke Yamaguchi.

User Ratings

The app has no ratings yet.

App Information

Solo Invoice - Invoice Maker costs $0.99. The app size is 4.36 MB. The latest version available is 1.5. The last update was on October 23, 2026.

Technical Requirements

The app has a content rating of Everyone. The app has been available on the App Store since August 2026.

Developer information for Daisuke Yamaguchi

Daisuke Yamaguchi

Address:

Frequently asked questions about Solo Invoice - Invoice Maker

Is Solo Invoice - Invoice Maker free?

No. Solo Invoice - Invoice Maker costs $0.99 on the App Store.

Is Solo Invoice - Invoice Maker still available?

Yes. Solo Invoice - Invoice Maker is on the App Store, and the last update we saw was on October 23, 2026.

How large is Solo Invoice - Invoice Maker?

Solo Invoice - Invoice Maker is 4.36 MB.

Is Solo Invoice - Invoice Maker suitable for children?

App Store rates the content of Solo Invoice - Invoice Maker as suitable for everyone.

Who made Solo Invoice - Invoice Maker?

Solo Invoice - Invoice Maker was developed by Daisuke Yamaguchi. It is listed in the business category on the App Store.

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