Invoice, quote, credit note & voucher — all from one editor. 4 document types, switch without losing data.
4 TypesUI + PDF in all 27 languages. RTL Arabic, Cyrillic, CJK, Latin. UI language independent from doc language.
de en es fr ar zh ja pl it +18Hybrid PDF with embedded XML. DATEV, Lexoffice, SAP auto-import line items — no manual entry.
XML EmbeddedCreate, issue, redeem. Multi-voucher stacking. Partial/full. Gift mode (0€) + code tracking.
Geschenk · CodeIncome, profit, unpaid, overdue — computed O(n) in milliseconds from local SQLite.
O(n) InstantZero backend, zero server, zero cloud. All data on-device. Works anywhere — construction sites, basements.
No CloudMonthly, quarterly, yearly. Auto-cloned with day-clamped dates. Dashboard processes next-due.
Set & Forget3-level escalation with configurable days + late fees. Auto-marks overdue. Escalating reminder PDFs.
Level 1–3ZIP with full DB + photos, encrypted with your PIN. Export via share sheet. Restore on any device.
PIN-EncryptedImport contacts. Track billed/outstanding per customer. Anonym fallback. Consent tracking built-in.
Contact Import6 categories: material, tools, fuel, insurance, rent. Photos linked. Full cost control.
6 CategoriesDATEV CSV + 26 country formats. Correct delimiters, dates, encoding per country. Accountant-ready.
DE/AT/CH/FR +23Monthly revenue bars (fl_chart), VAT breakdown by rate. CSV export, quarterly filtering.
fl_chartBadezimmer, Elektro, Heizung, Maler, Allgemein — pre-seeded with line items. Create custom templates.
Trade-SpecificOne-click paid. Cash/transfer selector. Auto-generates Zahlungsbestätigung PDF with SEPA QR code. Native share.
Payment PDF + QRSHA-256 hashed PIN. Locks every launch. Biometric support. Financial data stays private.
SHA-256Paywall + trial + pro features. 7-day free trial, then €12.99/mo. Clean upgrade path.
Pro TierAttach to invoices + expenses. Local storage. Included in PDFs + AES-encrypted backups.
On-DeviceFull light/dark with system auto-detect. Custom indigo design tokens. Easy on the eyes.
Auto-DetectNative MethodChannel. Pre-dialog + permission + settings fallback. Select all/none in one tap.
One-TapNo server exists. No cloud sync. No account. SQLite database + photos live on your phone. AES-256 encrypted backups are the only copy that leaves your device — and they're locked with your PIN. This is privacy by architecture, not by privacy policy.
Browse the app in Arabic. Your client receives a PDF in German. Write in Turkish. The invoice prints in French. UI language and document language are completely independent. All 27 languages ship with the app — no internet needed.