A side-by-side comparison of features, scheduling, languages, and who each platform is designed for.
Belgian healthcare practices
Helena Pro Calendar is the rebrand of Progenda, a Belgian online booking platform for medical practices. Patients book via a web widget, and Helena Pro pairs the calendar with Ringphone, a human medical telephone secretariat that answers inbound calls during business hours. Compared with an AI agent like Voxiplan, a human secretariat is more expensive per call, only available during staffed hours, and harder to keep consistent with clinic protocols. SMS reminders cost roughly €9 to €13 per month as a paid add-on, and plans start at around €19 to €41 per month plus a one-time setup fee.
Helena Pro (formerly Progenda) is built around booking and human phone secretariat for belgian clinics. Voxiplan is focused on SMBs that want an all-in-one AI phone agent without technical setup, covering 66+ languages, real-time calendar availability, outbound calls, and SMS directly from the business number.
You want a fully featured, no-code AI phone agent for your business.
You mainly need booking and human phone secretariat for belgian clinics.
Built for SMBs
Voxiplan is an AI phone agent built for small and mid-sized businesses. It handles inbound and outbound calls, books and reschedules appointments with real-time calendar availability, speaks 66+ languages, and sends SMS follow-ups without technical setup.
Belgian healthcare practices
Helena Pro Calendar is the rebrand of Progenda, a Belgian online booking platform for medical practices. Patients book via a web widget, and Helena Pro pairs the calendar with Ringphone, a human medical telephone secretariat that answers inbound calls during business hours. Compared with an AI agent like Voxiplan, a human secretariat is more expensive per call, only available during staffed hours, and harder to keep consistent with clinic protocols. SMS reminders cost roughly €9 to €13 per month as a paid add-on, and plans start at around €19 to €41 per month plus a one-time setup fee.
Every feature compared across both platforms.
| Feature | Voxiplan | Helena Pro (formerly Progenda) |
|---|---|---|
| AI Assistant | Yes | No |
| Multiple Voices | Yes | No |
| Languages | 66+ | 2 |
| Custom Workflows & Prompts | Yes | No |
| Channels | Phone, SMS, Chat | Online booking, Human phone secretariat |
| Conversational AI | Yes | No |
| Feature | Voxiplan | Helena Pro (formerly Progenda) |
|---|---|---|
| Caller Menu (IVR) | Yes | No |
| Call Transfer | Yes | No |
| Voicemail to Email | Yes | No |
| Outbound Calls | Yes | No |
| Feature | Voxiplan | Helena Pro (formerly Progenda) |
|---|---|---|
| Integrated Calendar | Yes | Yes |
| Scheduling Workflows | Yes | Yes |
| Book New Appointments | Yes | Yes |
| Reschedule & Cancel | Yes | Yes |
| Connect to Google Meet, Teams, Zoom etc. | Yes | No |
| Real-Time Availabilities | Yes | Yes |
| Smart Scheduling Rules | Yes | Yes |
| SMS Confirmations | Yes | Paid add-on |
| Email Confirmations | Yes | Yes |
| Feature | Voxiplan | Helena Pro (formerly Progenda) |
|---|---|---|
| Calls Dashboard | Yes | No |
| Call Recordings | Yes | No |
| Contact History | Yes | Yes |
| Feature | Voxiplan | Helena Pro (formerly Progenda) |
|---|---|---|
| SMS Confirmations & Follow-Ups | Yes | Paid add-on |
| Send Outgoing SMS | Yes | No |
| SMS from Own Number (VoxiSMS) | Yes | No |
A closer look at the features that matter most when comparing these two platforms.
Voxiplan supports over 66 languages, which makes it better suited to multilingual customer bases and businesses operating across countries or regions.
Helena Pro (formerly Progenda) 2 languages. This can work for narrower markets, but it becomes limiting as customer language needs expand.
Voxiplan connects directly with calendars for real-time availability. It handles booking, rescheduling, and cancellations, sends SMS and email confirmations, and supports smart scheduling rules like buffer times and daily limits.
Helena Pro (formerly Progenda) supports calendar integration and appointment booking workflows.
Voxiplan lets the assistant send messages from the actual business phone number, not a shared sender. That improves recognition and trust, and it is unique in this comparison set.
Helena Pro (formerly Progenda) does not currently support outgoing SMS messaging.
Voxiplan and Helena Pro (formerly Progenda) both support these capabilities.
These capabilities are included in Voxiplan but not currently offered by Helena Pro (formerly Progenda).
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Data collected in March 2026 based on publicly available information. Features may change. Always verify on each platform's official website.