TemperStack
H
Harpoon4.3/5
vs
IN
Invoice Ninja4.3/5

Harpoon vs Invoice Ninja (March 2026)

HHarpoonINInvoice Ninja
PriceFreeFree
Rating4.3 4.3/54.3 4.3/5
Free Tier✓ Yes✓ Yes
Best ForFreelancers seeking profitable growth, Small agencies and design studiosFreelancers and consultants, Small businesses with recurring billing
Quick Verdict

Both Harpoon and Invoice Ninja earn a 4.3/5 rating — your choice depends on which feature set and pricing model fits your workflow best.

Quick Overview

H

Harpoon

Forward-looking time-tracking and invoicing software designed to help freelancers, agencies, and studios plan and foreca...

  • Best for: Freelancers seeking profitable growth, Small agencies and design studios
  • Starting price: Free
  • Category: Invoicing Software
  • Founded: 2014
  • Pricing model: subscription
View Full Profile →
IN

Invoice Ninja

Invoice Ninja is a comprehensive invoicing and billing platform designed for freelancers, consultants, and small busines...

  • Best for: Freelancers and consultants, Small businesses with recurring billing
  • Starting price: Free
  • Category: Invoicing Software
  • Founded: 2014
  • Pricing model: freemium
View Full Profile →

Feature Comparison

FeatureHarpoonInvoice Ninja
Time Tracking
Invoicing
Financial Forecasting
Project Scheduling
The Harpoon Method
SSL Encryption
Stripe Integration
Team Management
Dashboard Analytics
No Software Installation
Professional Invoice Templates
Online Payment Processing
Recurring Invoices
Client Portal
Expense Management
Multi-Currency Support
Mobile & Desktop Apps
API & Webhooks
Self-Hosted Option

Pricing Comparison

Prices last verified: March 16, 2026

Harpoon

Free
Starting price
subscription · 5 plans
Free Trial
Free
Starter
$9/mo
FreelancerPopular
$19/mo
Studio
$39/mo
Agency
$99/mo
View full Harpoon pricing →

Invoice Ninja

Free
Starting price
freemium · 4 plans
Free
Free
Ninja ProPopular
$14/mo
Enterprise
$140/mo
Premium Business+
$280/mo
View full Invoice Ninja pricing →

Pros & Cons

Harpoon

Pros
  • Unique focus on financial forecasting and profitability
  • Simple four-rule methodology for business management
  • 14-day free trial with no credit card required
  • 21% discount for annual billing
Cons
  • Starter plan limited to only 3 clients
  • No free permanent plan available
  • Additional team members cost $5 each beyond 20 users
  • May be too simple for complex enterprise needs

Invoice Ninja

Pros
  • Generous free plan with unlimited invoicing
  • Self-hosted option available for data control
  • Extensive payment gateway integrations
  • Native mobile and desktop apps
Cons
  • Advanced features require paid plans
  • Self-hosting requires technical expertise
  • Limited advanced reporting on lower tiers
  • Interface can be overwhelming for simple needs

Which Is Best for You?

H

Choose Harpoon if:

  • Freelancers seeking profitable growth
  • Small agencies and design studios
  • Service-based businesses needing financial clarity
  • Teams wanting to predict future revenue streams
  • You want to start with a free plan
  • Budget is a priority ($9 vs $14)
IN

Choose Invoice Ninja if:

  • Freelancers and consultants
  • Small businesses with recurring billing
  • Teams needing self-hosted solutions
  • Businesses requiring extensive payment gateway options
  • You want to start with a free plan

Our Verdict

🏆
HHarpoon — WinnerINInvoice Ninja — Runner-up

After thorough analysis, Harpoon takes the lead in this comparison, though both tools share an identical 4.3/5 rating.

Harpoon is best for Freelancers seeking profitable growth and Small agencies and design studios. Unique focus on financial forecasting and profitability.

Invoice Ninja remains a strong alternative, especially for Freelancers and consultants and Small businesses with recurring billing. Generous free plan with unlimited invoicing.

Pricing-wise, Harpoon is the more affordable starting option. Evaluate free trials of both before committing.

Try HarpoonTry Invoice Ninja

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Related Reading

Frequently Asked Questions

Both Harpoon and Invoice Ninja earn a 4.3/5 rating — your choice depends on which feature set and pricing model fits your workflow best.
Harpoon starts at $9/mo (free tier available), while Invoice Ninja starts at $14/mo (free tier available).
Yes. Most users can migrate data between the two. Check both platforms for import/export tools before switching.
Harpoon integrates with Stripe, Web browsers. Invoice Ninja integrates with Stripe, PayPal, Square, Braintree. Both offer solid third-party connectivity, though the best choice depends on your existing tech stack.
Both tools are designed for ease of use. Harpoon is best for Freelancers seeking profitable growth and Small agencies and design studios, while Invoice Ninja excels for Freelancers and consultants and Small businesses with recurring billing. Consider trying both free trials to judge which interface suits your workflow.
Harpoon has a 4.3/5 rating from 150 reviews, while Invoice Ninja scores 4.3/5 from 2,500 reviews. Higher review counts generally indicate a more established support ecosystem.
For small businesses, Harpoon may be more budget-friendly starting at Free. However, Invoice Ninja (Free) could offer better value depending on the features you need most.
For enterprise use, consider which offers more advanced plans. Harpoon has 5 plans while Invoice Ninja has 4 plans. Evaluate each tool's enterprise features, security compliance, and team management capabilities before committing.
Check each tool's website for the latest mobile app availability. Both Harpoon and Invoice Ninja offer web-based access, and many modern SaaS tools provide companion mobile apps for iOS and Android.
Choose Harpoon if you prioritize unique focus on financial forecasting and profitability and want to start free. Choose Invoice Ninja if you value generous free plan with unlimited invoicing and want a free tier.

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Written by

A
Alex Morgan
Senior SaaS Analyst

Alex has spent over 8 years analyzing and comparing business software solutions. With a background in enterprise software sales and product management, he brings hands-on experience to every review. Alex specializes in CRM, marketing automation, and sales enablement tools.

CRMMarketing AutomationSales Tools127 articles