Slipstrim — AI Invoice Software for Freelancers & Agencies
Slipstrim is an all-in-one AI business management platform for freelancers, agencies, and small businesses. It replaces the need for separate invoicing software, CRM, analytics, and automation tools — bringing invoicing, client management, stock management, travel orders, AI agents, revenue analytics, calendar, and bank integration into a single application.
What is Slipstrim?
Slipstrim is a complete business operating system for independent professionals and growing agencies. It is not just invoicing software — it is the full stack of tools a modern freelancer or agency needs to run their business: AI invoice creation in under 60 seconds, client CRM, stock and inventory tracking, travel order management, AI business agents, revenue analytics, automated payment reminders, and bank integration. Available in English, Slovenian, German, and Croatian.
Platform Modules
- Invoicing — AI-powered invoice creation from plain-text descriptions. Professional PDF export with custom branding, logo, and colour. SEPA EPC QR codes for instant EU bank payments.
- Proforma Invoices — Create deposit or estimate documents; convert to final invoice with one click.
- AI Agents — Automated business agents that execute tasks, draft documents, and answer business questions by conversation (powered by Claude and Gemini).
- AI Assistant — Ask your own business data anything: "Who is my top client?", "How much is overdue?", "Am I on track for my revenue goal?"
- CRM (Client Management) — Full client profiles with contact info, revenue history, payment behaviour, and timestamped notes. Track active, at-risk, and inactive clients.
- Stock Management — SKU-level inventory tracking. Link stock items to invoice line items; stock levels update automatically as invoices are executed.
- Travel Orders — Create and manage business travel documentation for employees and contractors.
- Revenue Analytics — Dashboard tracking collected, pending, and overdue revenue. Monthly bar charts, annual goals, and trend analysis.
- Calendar — Schedule meetings, deadlines, and tasks with colour-coded event types.
- Bank Integration — Connect Wise (TransferWise) via OAuth for payment tracking and SEPA bank reconciliation.
- Automated Payment Reminders — Auto-send reminders before due dates, overdue notices, and paid receipts by email.
- Multi-currency & VAT — Invoice in EUR, USD, GBP, CHF and more. VAT auto-lookup and tax calculation included.
Who is Slipstrim for?
- Freelancers — designers, developers, photographers, consultants, copywriters who need fast invoicing and client tracking
- Creative agencies — web design studios, marketing agencies, branding firms managing multiple clients
- Contractors & tradespeople — anyone billing by hour, project, or material, with stock to track
- Small businesses & studios — consultancies and service businesses needing CRM, analytics, and document management in one place
How to Create an Invoice with Slipstrim (AI-Powered, Under 60 Seconds)
- Select a client from the built-in CRM (or create a new one in seconds).
- Describe your work in plain text — for example: "Website redesign 40 hours at €120, plus monthly hosting retainer €200".
- AI extracts line items — service names, quantities, units (hr, m², lot, pcs, kg…), and prices are populated automatically.
- Review and brand — apply your logo, brand colour, set payment terms and due date.
- Export as PDF — a professional invoice with SEPA EPC QR code is ready instantly.
- Optionally automate — set up a payment reminder schedule for the invoice.
Pricing
- Starter — €12/month (€9/month billed annually): 50 documents/month, 10 customers, PDF export, SEPA QR, proforma invoices, calendar, email support.
- Professional — €25/month (€19/month billed annually): Unlimited documents & customers, AI agents & assistant, email automation, custom branding, revenue analytics, full CRM, stock management, travel orders, bank integration, priority support.
- Business — Custom pricing: Multi-user workspaces, custom SMTP, API access, bulk import, dedicated account manager, SLA.
Free plan available. No credit card required.
Frequently Asked Questions
- What is Slipstrim?
- Slipstrim is an all-in-one AI business platform for freelancers, agencies, and small businesses. It combines invoicing, proforma invoices, CRM, stock management, travel orders, AI business agents, an AI assistant, revenue analytics, automated payment reminders, SEPA EPC QR payments, calendar, and bank integration — all in a single web application.
- How does AI invoice generation work?
- Slipstrim's AI invoice generator reads a plain-text description of your project and automatically extracts service names, quantities, units, and prices into clean invoice line items. For example, type "website redesign 40 hours at €120, plus monthly hosting €200" and the AI creates two properly formatted line items instantly. Powered by Google Gemini and Claude.
- Is Slipstrim suitable for freelancers?
- Yes. Slipstrim was built specifically for freelancers and solo operators. The Starter plan (€12/month) covers 50 invoices per month, 10 clients, PDF export, SEPA QR payments, and proforma invoices — everything a freelancer needs without paying for features designed for large accounting teams.
- What is an EPC QR code on an invoice and how does it work?
- An EPC QR code (also called a SEPA QR code) is a standardised QR code on a European invoice that encodes the payee's IBAN, SWIFT/BIC, invoice amount, and reference number. When a client scans it with any EU banking app, all payment details are pre-filled automatically — eliminating manual entry errors and speeding up payment. Slipstrim generates a compliant EPC QR code on every invoice when you add your IBAN in Settings.
- How does Slipstrim compare to FreshBooks, QuickBooks, or Wave?
- Slipstrim is an AI-first operations platform, not an accounting suite. Key differences: (1) AI agents and AI assistant built into the platform; (2) AI line-item extraction from plain text in under 30 seconds; (3) native SEPA EPC QR support for the European market; (4) built-in stock management, travel orders, and CRM that accounting tools don't include; (5) lower price starting at €12/month; (6) designed for day-to-day business operations, not annual tax filing.
- Is the free plan really free?
- Yes. No credit card required. Sign up and start using Slipstrim immediately — upgrade to a paid plan only when you need more.
- Can I cancel my subscription anytime?
- Yes. Cancel from Settings at any time with no penalty. Your access continues until the end of the current billing period.
By the numbers
- Average invoice creation time: under 30 seconds with AI generation
- Over 10,000 invoices processed on the platform
- More than €2.4 million in payments facilitated via SEPA
- 98% user satisfaction across active accounts
Reviews & recognition
Slipstrim is listed and reviewed on G2 and Capterra. Also on Product Hunt and LinkedIn.
Start free at slipstrim.io — no credit card required.