Acuity Scheduling vs Appointedd vs Invoice Ninja
| Attribute | |||
|---|---|---|---|
| Category | Scheduling & Appointments | Scheduling & Appointments | Billing & Invoicing |
| Pricing | Free tier | Paid | Free tier |
| Starting price | $16/month | — | $140/month |
| Free tier | Yes | No | Yes |
| Free trial | Yes | No | No |
| Deployment | Cloud | — | Cloud |
| API available | Unknown | Unknown | Unknown |
| Platforms | — | — | ios, android, windows, linux |
| Certifications | — | — | — |
| Integrations | 2 | — | 1 |
| Company | — | — | — |
| Feature attributes | |||
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Unknown values show as “Unknown”/“—”. Nothing is inferred — see each tool page for sources.