KS-eFektywnie
KSeF invoices & bank transfers
Invoices from Poland’s National e-Invoice System (KSeF) on your iPhone — no accounts, no server, no subscription.
Coming soon to the App Store
Everything you need for KSeF invoices
From downloading an invoice, through the payment file, to confirming payment from your bank statement.
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Purchase invoices from KSeF
Download invoices and track statuses (new, disputed, to pay, transfer prepared, paid), with notes and history. Swipe gestures, date filters — this month, last month, custom range — export to Excel and PDF, and a cost summary.
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Bank transfers
A payment file for your bank from approved invoices — Erste Bank, mBank or Elixir-0 for other banks, including split payment (MPP). History of payment batches.
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Bank statements
Import MT940, CSV (Erste, VeloBank) or Bank Millennium transaction history, and payments are matched to invoices automatically. Approving the match marks the invoices as paid.
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Sales invoices
Issue FA(3) invoices, send them to KSeF, get the UPO receipt and the KSeF QR code. Invoices issued outside the app are downloaded from KSeF. Buyer details by tax ID (NIP) from the VAT White List, plus a catalogue of items and buyers.
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PDF and custom templates
PDF invoice visualisation with your own layout, colour, logo and label language. Arrange the page by dragging sections.
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Copy in iCloud Drive
A copy in your own iCloud Drive as plain files: invoices as JSON and XML, payment files and statements.
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Security
Data stays on your phone, the KSeF token is kept in the Keychain, Face ID lock.
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Payment reminders
Due-date reminders go to the Reminders app and are checked off automatically once the invoice is paid.
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Four languages
Polish, English, Spanish and Ukrainian. Requires iOS 26.
Privacy at a glance
Your invoices stay with you — on your phone and in your own iCloud.
- No accounts, no developer serverThe app does not collect personal data.
- Data only on your deviceProtected by iOS file encryption; optional copy in your private iCloud.
- KSeF token in the KeychainNever included in backups or iCloud.
- No ads, analytics or trackingThis website uses no cookies or analytics tools either.