Invoice Ninja vs Billdu

Invoice Ninja9.2Visit Billdu8.8Visit

Higher score Invoice Ninja #2 in Contractor Invoicing Software 9.2/10 Free plan Free plan✓ 4 of 4 features Visit Invoice Ninja

vs

Billdu #4 in Contractor Invoicing Software 8.8/10 7-day trial Free trial✓ 2 of 4 features Visit Billdu

• Invoice Ninja fits best

  Flexible teams needing broad platform coverage

• Billdu fits best

  Budget-conscious contractors needing team features

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Side by side

Feature	Invoice Ninja 9.2/10 Visit ↗	Billdu 8.8/10 Visit ↗
At a glance
Editor score	9.2	8.8
Ranking	#2 in Contractor Invoicing Software	#4 in Contractor Invoicing Software
Best for	Flexible teams needing broad platform coverage	Budget-conscious contractors needing team features
Pricing model	Free plan + paid	Paid
Starting price	—	$4.99/mo
Free plan	✓ (best)	—
Free trial	—	7 days
Deployment	Cloud, Self-hosted, Desktop, Mobile	Cloud, Mobile
Platforms	Web, Windows, macOS, Linux, iOS, Android	Web, iOS, Android
Integrations	6 integrations	3 integrations
Features Invoice Ninja 4/4 · Billdu 2/4
Estimates	✓ (best)	Not checked yet
Online payments	✓	✓
Recurring invoices	✓	✓
Payment requests	✓ (best)	Not checked yet
Specs
Mobile apps	Both	Not checked yet
Invoice limit	Not checked yet	Not checked yet
Our review
Pros	Free plan includes unlimited invoicing, recurring invoices, and online payments Covers invoicing, payments, time, projects, expenses, portals, and reports Available across web, desktop, mobile, API, and self-hosted deployments	Annual plans start at $4.99 per month Supports estimates, payments, reminders, and recurring invoices Web, iOS, Android, and API access with team roles
Cons	The Free plan supports only 5 clients API integration and reports require Ninja Pro User permissions and PEPPOL are limited to Enterprise tiers	No free plan Lite is limited to 10 clients API access is available only on Premium
Our verdict	Invoice Ninja is invoicing and payment software for freelancers, contractors, tradespeople, agencies, and small-to-medium businesses. It creates and sends invoices and quotes, supports online payments through connected gateways, and… Read the review →	Billdu is invoicing software for freelancers, contractors, and small businesses. It supports invoice creation and sending, estimates and quotes, expense tracking with receipt scanning, online invoice payments, payment tracking, client… Read the review →

Strengths and trade-offs

• Invoice Ninja — where it wins

  • Free plan includes unlimited invoicing, recurring invoices, and online payments
  • Covers invoicing, payments, time, projects, expenses, portals, and reports
  • Available across web, desktop, mobile, API, and self-hosted deployments

  Where it doesn't

  • The Free plan supports only 5 clients
  • API integration and reports require Ninja Pro
  • User permissions and PEPPOL are limited to Enterprise tiers

• Billdu — where it wins

  • Annual plans start at $4.99 per month
  • Supports estimates, payments, reminders, and recurring invoices
  • Web, iOS, Android, and API access with team roles

  Where it doesn't

  • No free plan
  • Lite is limited to 10 clients
  • API access is available only on Premium

• Invoice Ninja9.2/10 · Free plan

  A broad invoicing platform with a useful free tier and flexible deployment options.

  Visit Invoice NinjaFull verdict →
• Billdu8.8/10 · 7-day trial

  Affordable contractor invoicing with estimates, payments, reminders, and team access.

  Visit BillduFull verdict →