Fyntoo Bill
B2B invoicing on your phone
Create professional invoices, track payments, and manage clients. Designed for freelancers and small businesses who need fast, offline-capable invoicing without a desktop.
The problem it solves
Invoicing usually means a laptop, a subscription, and a stable internet connection. But freelancers and small crews often need to issue an invoice on the spot - at a client's site, at a market stall, in a van. Fyntoo Bill puts the whole invoicing workflow in your pocket and works fully offline, so sending a professional invoice takes a minute wherever you are.
Who uses it
A freelancer with a handful of invoices
A designer, tutor, translator or photographer sending 2-10 invoices a month. A 10-20 EUR subscription never pays for itself, and an Excel invoice looks unprofessional. Here it takes a minute: a clean PDF with your logo, sent straight from your messenger.
A tradesperson in the field
A plumber, electrician or repair tech finishes the job and hands over the invoice right at the client's place, from the phone, with no internet. In a basement, on a construction site or out in a village, offline is not a marketing bullet, it is a working condition.
A multilingual freelancer in Europe
Based in Portugal with clients in Germany and France: the interface in your language, the invoice in the client's. The invoice language is saved per client and remembered. Most free invoicing apps simply do not have this.
Privacy as a principle
Lawyers, consultants, therapists: people whose client lists are confidential. Every cloud service stores client names and amounts on its own servers. Here the data physically never leaves the device, and that is a promise we can make honestly.
A side hustle on trial
You just started taking orders and do not know yet if it will stick. Registering with a cloud service and entering a card for a trial is one barrier too many. Download the app and send the first invoice three minutes later. If the business takes off, CSV export carries the history to your accountant.
Seasonal work
A tour guide in summer, a ski instructor in winter, a wedding host: four active months a year. Subscription services charge for all twelve. A free local app charges for none.
Quarterly reports for the accountant
Collect invoices, filter by date, export a CSV for the period, send it to the accountant. That exact routine is built in.
What it does
- Create and send PDF invoices
- Client and product management
- Payment tracking and reminders
- Works offline - data stays on device
- Multi-currency support
See it in action
Your data stays on your device
Need more? We can build it
Fyntoo Bill is free and fully local, and it will stay that way. For a freelancer that is enough. If your business needs more than a solo tool, we can extend it for you:
- Multi-user: several people issuing invoices under one company account
- Recurring invoices and payment reminders for a steady flow of clients
- Integrations with your bank, accounting system or tax reporting
- A rework around your industry's paperwork: your fields, your numbering, your legal footer
None of this exists in the app today, and the app itself stays free. We build extensions to order: fixed scope, fixed price, agreed timeline. Or we rework the app around how your business runs.
Need this customized for your business?
We can adapt this product or build something new based on your requirements.
Get in touch