Billdu vs Invoice Ninja
Both are on the Contractor Invoicing Software list. Here is what each maker publishes, side by side.
 Billdu |  Invoice Ninja | |
|---|---|---|
| Place on the list | #2 7.5 | #5 7.5 |
| Maker | Billdu | — |
| Starts at | $4.99 a month | $14 a month |
| Free | Free plan | Free plan |
| Runs on | Android, API, iPhone/iPad, Web | Android, API, iPhone/iPad, Linux, Mac, Self-hosted, Web, Windows |
| Open source | No | No |
| Plans | Lite: $4.99 a month Standard: $9.99 a month Premium: $19.99 a month Free: $0 | Free: $0 Self-hosted: $0 Ninja Pro: $14 a month Enterprise: $18 a month |
| Verdict | — | Invoice Ninja combines estimates, billing, payment collection, and project time tracking across hosted and self-hosted options. The hosted free plan has a five-client ceiling, while self-hosting requires a separately paid server. |
| Visit Billdu | Visit Invoice Ninja |