BillingEngine vs WorkflowMAX
BillingEngine
billingengine.comWorkflowMAX
workflowmax.comSide by side
| Figure | BillingEngine | WorkflowMAX |
|---|---|---|
| Price from | €6/mo | $8.33/mo |
| Free plan | Yes | — |
| Free trial | — | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| iOS | — | Yes |
| Android | — | Yes |
| API | Yes | Yes |
| Plans published | 4 | 3 |
| Spec score · Invoicing software | 8.9 (#13) | 9.0 (#10) |
| Founded | BillingEngine says it launched in 2014 to provide a simple invoicing solution for small businesses. | 2007 |
| Free plan | Yes | No |
| Integrations | The pricing page lists DATEV data export and a REST API for customers, invoices and payments. | Listed integrations include Xero, QuickBooks, HubSpot, Zapier, Airwallex, and Google Calendar. |
| Product | BillingEngine is invoicing and accounting software for freelancers and small businesses. | WorkflowMAX describes itself as a job profitability operating system for professional services firms. |
| Recurring invoices | Recurring invoices can run weekly, monthly, quarterly, semi-annually or annually. | Yes |
| Security | The company states that data is encrypted in transit, stored on German servers and protected by regular backups. | WorkflowMAX says it stores private user data encrypted with AES 256-bit encryption. |
| Support | Priority email support is included as a plan feature, with requests often answered the same business day. | The FAQ says all customers have access to 24/7 in-product support and a help centre. |
| Time tracking | A stopwatch records task time and can transfer it as an invoice line item. | Timesheets can record time against jobs and tasks using eight different entry methods. |
Plans
BillingEngine
- FreeFree
- Basic€6 a month
- Premium€12 a month
- FreePrice not published
In their own words
BillingEngine
BillingEngine is cloud invoicing and accounting software for freelancers and small businesses. It creates electronic invoices in ZUGFeRD and XRechnung formats compliant with EN 16931, and every plan includes an unlimited email inbox for incoming e-invoices. Accepted quotes can become invoices, and reminders can be sent at several dunning levels. Receipt recognition extracts amount, date, tax rate and supplier, then matches receipts to expenses. Users can export data in DATEV, CSV, XLS, XML or PDF formats; listed integrations include DATEV export and a REST API for customers, invoices and payments. The free plan allows three invoices, three quotes and three receipts per month for one user. Basic costs €6 a month plus VAT and allows 30 of each document type monthly for two users. Premium costs €12 a month plus VAT and provides unlimited invoices, quotes and receipts for five users. BillingEngine says data is encrypted in transit, stored on servers in Germany and archived in a GoBD-compliant manner.
WorkflowMAX
WorkflowMAX is a job profitability operating system for professional services firms. It covers quoting, job management, scheduling, time tracking, work-in-progress management, and invoicing. A job record can contain tasks, costs, time, and documents, while timesheets record time against jobs and tasks through eight entry methods. The service supports recurring invoices, online payments, and multi-currency invoicing. Integrations include Xero, QuickBooks, HubSpot, Zapier, Airwallex, and Google Calendar, with MCP connections described for Claude, ChatGPT, Gemini, and Microsoft Copilot. Dedicated iOS and Android apps support job management, time entry, and task viewing; web and API access are also listed. Essentials costs $8.33 a month, billed monthly, for 3–25 users. Pro costs $15 a month from five users, and Advanced costs $25 a month from ten users. Annual rates are listed as 7.50, 13.50, and $22.50 per user per month respectively. All plans include a 14-day trial with full selected-plan access and no credit card. Anyone who signs in needs a licence.