Work JDGkit

JDGkit — app and website

An iPhone and Mac app for sole traders: KSeF invoices arrive on the phone on their own, plus VAT, recurring costs and documents. Product, brand, apps and the jdgkit.pl website

Visit website

Client: JDGkit
App Store: JDGkit na iPhone'a
Mac App Store: JDGkit Drop na Maca
Services: Mobile appmacOS appUX/UI DesignBrandingWeb DesignBackend / API

A one-person business doesn't have to be an accounting department

JDGkit is our own product: an iPhone app for sole-trader businesses. Business invoices now go through KSeF, and the owner of a sole-trader business gets yet another government system to log in to, just to check who sent an invoice and how much is due.

We turned it around. The app should keep an eye on invoices, payments, recurring costs and VAT, and the person only has to glance at the phone. The motto of the whole project: less paperwork, more time for work.

We built everything from scratch: the product concept, the brand, the iPhone app, the Mac app, the KSeF integration, the jdgkit.pl website and the App Store materials. JDGkit is on the App Store and JDGkit Drop on the Mac App Store.

JDGkit — iPhone in hand showing the KSeF invoice inbox and the line “Less paperwork. More time for work” — The KSeF inbox — the first screen users see

The KSeF invoice arrives on its own. You scan a receipt with one tap

JDGkit checks KSeF about every 15 minutes and sends a notification when a new document appears. Cost and sales invoices sit in one inbox. You can search them by name, tax ID, number or amount, and colours show at a glance what is paid and what is overdue.

Paper receipts don't go through KSeF, so we gave them a separate, shortest possible path. A shortcut on the lock screen, Face ID and the camera right away. The app reads the issuer, amount and tax ID on its own, and the user only checks and saves. The same shortcut works from Control Center, from the Action button and through Siri.

JDGkit — app screens: KSeF inbox, new invoice notification, lock screen scan widget and automatic reading of amount and tax ID — KSeF inbox, lock screen widget and scan recognition

Costs, VAT and reminders before it gets stressful

Receipts, invoices and contracts line up by month. For the accountant, one ZIP package or an e-mail from the app is enough.

You enter the domain, the invoicing software, the phone or the KSeF signature once. JDGkit shows how much that costs per year and what falls due next. From sales invoices it keeps a running estimate of how much to set aside for VAT, monthly or quarterly. It's an estimate, not a return: the accountant still does the filing.

When a client is late, a polite e-mail with the PDF invoice attached goes out in one move. The user sets the wording of the reminder, and marks an invoice as paid with a swipe.

JDGkit — app screens: documents sorted by month, recurring costs, VAT estimate and a payment reminder with the PDF invoice — Documents, recurring costs, VAT and payment reminders

An interface that doesn't look like accounting software

Every screen answers one question: what came in, what to pay, how much to set aside. We write in plain Polish, without jargon, and where something has to be chosen, the app suggests and the user only confirms.

The palette comes straight from the emblem: deep sea green, fresh mint and a coral accent. Coral appears sparingly, only where something needs attention. Invoice statuses, due dates and amounts read at first glance, also on the lock screen.

JDGkit — iPhone held in both hands showing recurring costs: yearly total, upcoming payments and subscriptions — Recurring costs: what you pay per year and what's next

An honest subscription model

The payment model is just as simple. Every subscription variant gives full access to all features and differs only in the amount of support: “for a small coffee”, “for a proper coffee” or “for a coffee and cake”.

JDGkit — app screens: connecting to KSeF and the “price of a coffee” subscription — Subscription “for the price of a coffee”

JDGkit Drop: an invoice from an e-mail lands on the iPhone

Some invoices still arrive by e-mail as a PDF, and you collect them at a computer. That's why we made a second app, for the Mac. JDGkit Drop waits in the menu bar: you drag a file, drop it and get back to work.

The document goes to the right month in Documents on the iPhone on its own. JDGkit Drop is free and available on the Mac App Store.

JDGkit Drop — Mac app: an invoice dropped on the MacBook appears in Documents on the iPhone — JDGkit Drop: drop it on the Mac, have it on the phone

The jdgkit.pl website: every feature is one promise

The site leads the way a good App Store presentation does. Each section is one benefit, a short headline and an app screen that proves it: the KSeF inbox, scanning, documents, costs, VAT, payments and JDGkit Drop. The scanning animation replays, step by step, the real flow in the app, from the lock screen to the saved document.

Next come three steps to get started, clear pricing with a yearly or monthly toggle and short answers to the most common questions. At the end, all that's left for the user is to download the app from the App Store.

Strona jdgkit.pl na MacBooku — hero „Mniej papierologii. Więcej czasu na pracę” z iPhone'em w dłoni

Fast, readable for Google and good-looking in a link preview

The site is static and light. Mockups are automatically converted to modern image formats, and in Lighthouse tests the desktop version scored 100 points for performance, accessibility and best practices. Every subpage has its own graphic for sharing on Messenger, LinkedIn and iMessage, structured data for Google (apps with prices, FAQ) and a sitemap.

The mockups on the site and in the App Store were made from the same scenes: a silver iPhone, hands, a MacBook and real app screens with demo data. That way the site, the store and the ads look like one brand.