Invoice Ninja ships under the Elastic License v2, which carries commercial-use restrictions. SolidInvoice's core is MIT licensed: no restrictions, ever. We host it for you from $9/month, less than Invoice Ninja's cheapest hosted tier, so there's no server to patch or back up. Prefer to run it yourself? The same MIT-licensed code is free to self-host.
Invoice Ninja
$10 to $14/mo
$120 to $168/year
SolidInvoice
From $9/mo
14-day free trial
14-day free trial. Cancel anytime during your trial and you won't be charged.
Invoice Ninja's hosted plan starts at $10 to $14/month, more than SolidInvoice's hosted plan from $9/month for the same core functionality
The Elastic License v2 is not true open source by the OSI definition, it restricts how you can use and redistribute the code
Steeper learning curve: Invoice Ninja's interface is feature-dense in ways that can overwhelm users who just need invoicing
Advanced customization and white-labelling locked behind higher-priced hosted tiers
| Plan | Monthly Price | Annual Cost | Your Savings |
|---|---|---|---|
| Invoice Ninja | $10 to $14/mo | $120 to $168/year | N/A |
| SolidInvoice ✓ | From $9/mo | From $90/year | Save $30 to $78/year |
SolidInvoice's core is MIT licensed and open source.
SolidInvoice outperforms Invoice Ninja on 4 of 11 comparisons
| Feature | SolidInvoice | Invoice Ninja |
|---|---|---|
| Professional invoicing | ||
| Online payments (Stripe, PayPal) | ||
| Recurring billing | ||
| Client management | ||
| Multi-currency support | ||
| Self-hosted option (free) | ||
| Open source licenseAdvantage | MIT License | Elastic License v2 |
| REST API access | Pro and up | |
| Simple onboardingAdvantage | ||
| No feature tier gates (self-host)Advantage | ||
| Starting hosted priceAdvantage | from $9/mo | $10 to $14/mo |
Moving from Invoice Ninja is straightforward. Most users are live on SolidInvoice within hours.
Create your SolidInvoice account in 30 seconds. Cancel anytime during the trial and you won't be charged.
Add the clients you're currently billing to SolidInvoice. It takes a few minutes. Keep Invoice Ninja in read-only mode for historical records.
Send your first invoice, set up online payments, and you're done.
Professional invoicing, online payments, and recurring billing. From $9 a month.
14-day free trial. Cancel anytime during your trial and you won't be charged.