Alternative to Dr. FlexAppointments without
a price per booking.
Dr. Flex bills per booking and per message. terminio.ai stays on one price, from €0.
As of September 2026 · Sources: Dr. Flex's website and pricing page
Images & videos on this site: AI-generated.
In 30 seconds.
Dr. Flex fits if …
you take few online bookings a month and want a German practice tool with WhatsApp and a voice AI already built in.
terminio.ai fits if …
people book online a lot and you want one price: no cost per booking, no cost per message, no surcharge per calendar.
The biggest difference
Per booking versus one plan. €39 plus €3.99 per online booking versus €0 to €19.99 a month.
Point by point.
The same eleven rows as on the comparison page, just for these two. Whatever Dr. Flex's website does not confirm stays a question mark and never counts as a no.
As of September 2026, based on public information on the providers’ websites. No guarantee. Brands belong to their owners.
What a year costs.
Where Dr. Flex is stronger.
Where terminio is.
Dr. Flex
- With very few online bookings a month, the €39 Starter comes out cheaper than any subscription.
- WhatsApp and the VoiceAI voice assistant are built into the product, made for practices.
- German provider with a booking page of your own; patients book without a patient account.
terminio.ai
- One price, however often people book. No €3.99 per booking, no 12 cents per message.
- Reminders by WhatsApp from your own number, unlimited in Pro and with no cost per message.
- €0 to start, unlimited practitioners in every plan, phone assistant included in Pro Voice.
Typical in these industries.
Dr. Flex appears on our comparison page for these industries. Each has a page of its own, with the workflow and the questions it really has.
From Dr. Flex to terminio
in three steps.
- 01
Set up your services
Tap your industry, adjust the prefilled services, set durations and prices. Ten minutes, and the booking page is live.
- 02
Bring your patients
Import your contacts and confirm existing appointments once by WhatsApp. From then on reminders go out from your number, with no price per message.
- 03
Swap the link
Booking link on your Google profile, website and voicemail. Cancel Dr. Flex; until then both calendars run in parallel.
What gets asked
before switching.
The Starter costs €39 a month plus €3.99 per online booking. At 100 bookings a month that is €438 a month, about €5,256 a year. There is also a flat rate of €99 a month for one calendar, so €1,188 a year. There is no free plan. terminio.ai starts at €0 and Pro costs €19.99 a month, whatever the number of bookings.
Your appointments.
Your page.
Start free, online in three minutes.