Comparison
BillingNow vs Invoice Fly
Invoice Fly is a mobile-first invoicing app popular with contractors and field workers. See how BillingNow compares with AI billing, a free plan, developer tools, and comprehensive document management.
BillingNow
Free — $39.99/mo
Free plan included
Invoice Fly
$98.99/year or $8.99/week (no free plan)
Mobile-first invoicing for contractors and freelancers
Feature-by-feature comparison
See exactly what you get with each platform.
Feature
BillingNow
Invoice Fly
Free Plan
Yes — up to 5 invoices/mo
No free plan
AI Billing Assistant
Built-in AI chat — create invoices, record payments via natural language
No AI assistant
CLI Tool
Full CLI (bn) for automation and scripting
No CLI
AI Agent Integration
Claude Code, OpenClaw, Cursor, and more
None
Swiss QR-Bill
Native support on PDF invoices
Not supported
Invoice Creation
Customizable templates, PDF export, email
6 templates, unlimited invoices
Estimates & Quotes
Full lifecycle with approval workflow
Unlimited estimates
Credit Notes
Full lifecycle management with invoice linking
Not available
Recurring Invoices
Automated with flexible frequencies (weekly to yearly)
Manual duplication only
Payment Tracking
Stripe integration, automatic status, partial payments
Stripe and PayPal, basic status
Multi-Currency
Full multi-currency support
Limited
Bill Management
AI-powered extraction from receipts and PDFs
Basic receipt scanner
Time Tracking
Not built-in
Built-in billable hours tracking
E-Signatures
Not built-in
Built-in e-signatures on documents
UI/UX & Ease of Use
Inline editing + AI chat — simplest workflow on web and mobile
Mobile-first but desktop experience reported as laggy
Why choose BillingNow
- Free plan available — Invoice Fly has no free tier
- AI assistant creates invoices and manages billing via natural language
- CLI and API for developer automation and scripting
- AI agent integrations (Claude Code, OpenClaw) for hands-free billing
- Credit notes with full lifecycle management
- Automated recurring invoices with flexible scheduling
- Swiss QR-bill support for European businesses
- Full multi-currency support for international clients
Why choose Invoice Fly
- Built-in time tracking with billable hours
- E-signatures on invoices and estimates
- Receipt scanner with mobile OCR
- AI logo maker for branding
The verdict
Choose BillingNow if you want AI-powered billing, a free plan, developer tools (CLI, API), credit notes, recurring invoices, or Swiss/EU compliance. Choose Invoice Fly if you need built-in time tracking, e-signatures, or a simple mobile app for field work.