SoloFlow: Invoicing & CRM

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About this app

SoloFlow is the mobile mini ERP designed for freelancers and small businesses in Europe. Create professional invoices, manage contacts with a built-in CRM, send and receive Peppol e-invoices, track tasks and deadlines — all from your phone.

WHY NOW?
Since January 1, 2026, electronic B2B invoicing via Peppol is mandatory in Belgium (Mercurius). France follows in September 2026 (mandatory reception) then September 2027 (mandatory sending for SMBs). Germany already requires reception since January 2025. SoloFlow is Peppol BIS 3.0 compliant and ready for the new European e-invoicing mandates.

KEY FEATURES
• Professional invoicing in a few clicks — invoices, quotes, credit notes
• Peppol e-invoicing (BIS 3.0, EU compliant)
• Compatible with Mercurius (Belgium), XRechnung (Germany), and European Peppol network
• Contact management & built-in CRM (status, pipeline)
• Task management with reminders and deadlines
• Calendar synced with your device calendar
• Team collaboration — invite your collaborators
• Export to PDF, email, or send directly via Peppol
• Automatic VAT-compliant numbering
• Offline mode — work without connection
• Free to start — no credit card needed

WHO IS IT FOR?
SoloFlow is designed for freelancers, consultants, contractors, liberal professions, e-commerce sellers, and small businesses (SMBs) who want a simple, mobile-first invoicing solution that complies with the new European e-invoicing mandates.

AVAILABLE PLANS
• Free: 1 document per month (invoice or credit note), unlimited contacts
• Pro: €9.99/month or €99.99/year — unlimited documents, multi-user, 50 Peppol transactions/month

Available in 10 languages: English, French, Dutch, German, Spanish, Italian, Portuguese, Danish, Finnish, Swedish.