USELY is the accounting app for iPhone. For founders, small business owners, self-employed professionals and tradespeople who have no time for complicated software. Calculate on site at the customer, create quotes and invoices in seconds, scan receipts, done. Legally compliant, GoBD-conform and free to start.
The path from quote to invoice eats time and keeps you from the actual work. That is exactly what USELY is built for: you stand at the customer, type in the items, see the price instantly and save everything as a project. If the customer says yes, one tap turns it into the quote, the order confirmation and finally the invoice. All legally linked, all in your pocket, all in seconds instead of hours.
From the first calculation to the EÜR export for your tax advisor. Every feature is built to a single standard: simple and fast.
Type in the items, see the price instantly, save it as a project. Right on site at the customer, as simple as a calculator. No laptop, no Excel, no evening at the desk.
Quote, order confirmation, partial invoice and final invoice in one seamless document chain. Every step legally linked, every number in a clean numbering sequence.
Calculation, documents and expenses live in one place, assigned to each customer. You see at a glance what is open, what has been paid and where a job currently stands.
Photograph a receipt, the text is recognized automatically, amount and category are captured instantly. Expenses can be assigned directly to a project, including recurring fixed costs.
You do not have to know tax law, USELY knows it for you. All mandatory details and regulations are handled automatically, on every single document.
XRechnung and ZUGFeRD for the e-invoicing mandate, plus the EÜR export as PDF and CSV. At the end of the year you export everything with a few taps, cleanly prepared and complete.
The idea for USELY was born in 2022 in real working life: observing on the construction site and talking to business owners in the personal environment. The path from quote to invoice was the same painful topic everywhere. It costs evenings, is annoying and keeps people from the actual work.
That observation became a first web version, which regional press already reported on back then. Supported by IGZ Würzburg, Brainstation Lauda and Campus Founders, the prototype grew into a well-thought-out product: today a completely newly built, native iOS app, live in the App Store.
USELY is entirely built solo: concept, branding, UI/UX design, iOS development, backend and launch from one source by YG MEDIA from Würzburg, Germany.
Daily life on the construction site becomes a concept: business management and accounting in one process, as simple as a calculator. The first web version goes live, over 2,000 visitors find the site and regional press reports.
IGZ Würzburg, Brainstation Lauda and Campus Founders accompany the project. Through intensive conversations and real user feedback, the prototype turns into a clear product vision.
USELY is rebuilt from scratch as a native iOS app and launches in the App Store. Legally compliant, GoBD-conform and free to start. Today, self-employed professionals write quotes and invoices with it every day.
Everything you want to know about USELY.
Download USELY free on your iPhone and write your next quote in under 60 seconds. No accounting knowledge, no evenings at the desk.
Download free on the App Store now ↗ Free · For iPhone · Built in Würzburg, Germany Want an app like this for your own business? Have your app developed →