Experi vs Invoice Ninja
Invoice Ninja is a popular open-source invoicing platform. But how does it stack up against Experi for UK businesses?
Quick Verdict
Invoice Ninja is a capable platform with a strong open-source community, but it requires more technical knowledge and lacks UK-specific features. Experi is simpler to use, built for UK compliance, and doesn't require any technical setup.
Feature-by-Feature Comparison
| Feature | Experi | Invoice Ninja |
|---|---|---|
| Free plan | Yes — 5 invoices | Yes — unlimited invoices, 20 clients |
| Open source | No | Yes — self-hostable |
| Ease of setup | Sign up and start — no setup | Cloud or self-hosted (technical) |
| UK VAT support | Full multi-rate VAT | Basic tax support |
| CIS deductions | Built-in CIS | Not supported |
| Late payment interest | UK statutory interest | Late fees (flat amount) |
| Payment reminders | Automated chasing | Email reminders |
| Payment gateways | Not applicable (document-sending) | 40+ payment gateways |
| Mobile app | Responsive web app | Mobile apps (Flutter) |
| Quotes | Quotes with conversion | Quotes with conversion |
| Recurring invoices | Automated recurring | Automated recurring |
| Client portal | Quote viewing portal | Full client portal |
| Ease of use | Very simple — minutes to learn | Moderate — more features to navigate |
| UK compliance focus | Built for UK regulations | General purpose, global |
| Credit notes | Full support | Credit functionality |
= Experi advantage| = Invoice Ninja advantage
Why Choose Experi
- Zero technical setup — sign up and start invoicing
- Built specifically for UK tax compliance (VAT, CIS)
- Automated payment chasing sequences (not just reminders)
- UK late payment statutory interest calculation
- Simpler interface with shorter learning curve
- No self-hosting maintenance or server costs
Why Choose Invoice Ninja
- Open source — can self-host and customise
- More payment gateway integrations (40+)
- Dedicated mobile apps
- Full client portal for online payments
- Larger free tier (unlimited invoices, 20 clients)
- API access and developer-friendly
Which Should You Choose?
Choose Experi if:
UK businesses who want to send compliant invoices quickly without technical setup, self-hosting, or managing servers.
Choose Invoice Ninja if:
Tech-savvy users who want full control through self-hosting, need many payment gateway integrations, or want to customise their invoicing platform.
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