What is Acuity Online Appointment Scheduling

Online appointment booking apps for your website

You probably know the scenario: You want to make an appointment with your client, maybe an initial meeting before a potential coaching session or a company would like to book you for a training day. Then it starts, by email or on the phone it is often tedious to find an appointment that suits both parties.

In all of the time it takes to make an appointment, you could do more meaningful things, e.g. actually coaching a: n client: in, preparing for a workshop or enjoying your evening after work. Apps for online appointment bookings can relieve you of an enormous amount of work.

How does online appointment booking work?

Do you want to offer your clients a digital appointment arrangement? The general procedure is as follows: You enter your services, their price and your availabilities in the app's calendar, link this to your work calendar and then embed the whole thing on your website. Now your customers can see immediately which service is available and when and book an appointment independently. You can have the payment carried out online immediately. Both you and your client will automatically receive an appointment confirmation and reminder by email and / or SMS. So you won't miss an appointment again and appear organized and professional.

What apps are there for making digital appointments?

In this section I have listed the most popular online appointment booking tools for you. Above all, the following criteria are essential:

  • GDPR compliance
  • Integrated payment function
  • Integration and sync with your own calendar
  • Postpone and cancel appointments
  • Automatic notifications


You should already be familiar with eTermin if you have searched the search engines for an appointment booking software 😉 The Swiss company gives you a whole range of functions to digitize your appointment planning. You can test eTermin for 30 days free of charge.

  • GDPR compliant
  • Automatic calendar synchronization (Google, iCloud, Outlook, Outlook365, Exchange, CalDAV, etc.)
  • Postpone and cancel appointments
  • Customer management
  • Voucher management
  • Automatic appointment reminders and confirmations by email and SMS
  • Include appointment booking on your website or in your social media channels
  • Online payment via PayPal, instant transfer, invoice and credit card
  • Many integrations, e.g. Slack, MailChimp, Shopify
  • From 19 € per month (1 free month if paid annually)

>> To the appointment booking app eTermin


In Calendly, you can release appointments in your calendar that customers can then book independently. There is also a kind of doodle function that you can use to schedule meetings. If you only use Calendly on your own and only integrate a calendar, the tool is free. You can test the premium versions free of charge for 14 days in advance.

  • GDPR compliant
  • Host multiple participants for training or webinars
  • Integrate up to six calendars (e.g. Google, Outlook, Cloud)
  • Automatically assign appointments to team members if they are available
  • Send notifications and reminders
  • Plan a time buffer
  • Customer management
  • Automatic appointment reminders
  • Customers can pay when booking an appointment (PayPal, Stripe)
  • Widget to insert on your website
  • Many integrations, e.g. Zoom, HubSpot, Zapier, Webhooks
  • Paid version from $ 8 per user per month


The appointment booking software Cituro has numerous functions that make your life easier for digital appointment planning. You set your availabilities and services, then your clients can choose and book their desired date. The price depends on the number of calendars you want to connect. You can test Cituro free of charge for 30 days in advance.

  • GDPR compliant
  • Automatic appointment reminders
  • Postpone or cancel appointments
  • Booking widget for your website and social media channels
  • Customer management
  • Online payment function (credit card, Apple Pay, etc.)
  • Individually adaptable to your design
  • Plan for buffer times
  • Marketing data (Google Analytics, Facebook Pixel)
  • Zapier integration
  • From 19.90 € per month (1 calendar)


SimplyBook.me gives you numerous functions for scheduling and online booking. There is a limited free version. You can test the higher tariffs with more functions for 14 days free of charge.

  • GDPR compliant
  • Postpone and cancel appointments
  • Automatic calendar synchronization (Google, Outlook)
  • Booking widget for your own website or social media (Instagram, Facebook)
  • Various integrations, e.g. Zapier, Wordpress
  • Many integrations with payment providers worldwide, e.g. PayPal, Stripe, Adyen, Skrill
  • Automatic reminders by email
  • Automatic observance of the time zone
  • Manage group bookings
  • Unlimited number of employees
  • Paid version from € 6.67 per month (annual payment)

>> To the appointment booking app SimplyBook.me


Terminland is an appointment booking software from Wiesbaden. Terminland is free of charge in a highly restricted version, otherwise additional modules are used, most of which are only included in the highest "Enterprise" tariff. It seems as if there is always only one calendar ("schedule) included in every tariff, each additional one has to be booked for a fee.

  • GDPR compliant
  • Resource management
  • Automatic calendar synchronization (iCal, Exchange, Outlook, Mozilla Lightning)
  • Interfaces for online payment, e.g. PayPal, instant transfer, direct debit, credit card
  • Paid version from € 14.90 per month


The appointment booking app Calenso originally comes from Switzerland. Here, too, your clients can independently book appointments with you. Calenso is free for up to 100 bookings, from the 101st booking you have to switch to the paid version. Only when the 100 bookings have been used up will you be asked to enter your credit card details. Until then, you can test Calenso with its full range of functions for free.

  • GDPR compliant
  • Manage group bookings
  • Calendar synchronization
  • Automatic appointment reminder
  • Appointment cancellations
  • Manage discounts and coupons
  • Integration into your website (Wordpress, Jimdo, WIX etc.)
  • Widget for social media channels
  • White label capable
  • Various integrations, e.g. Zoom, Webex, Webhooks
  • Online payment function via Stripe
  • Paid version: For more than 100 bookings from € 26 per month (annual billing)

>> To the appointment booking app Calenso


Appointmind is a solid tool for your digital appointment management. The software is developed near Hamburg and offers a 30-day money-back guarantee. The prices are based on the number of connected calendars.

  • GDPR compliant
  • Postpone and cancel appointments
  • Embed in your own website
  • Automatic appointment reminders via SMS and email
  • Automatic calendar synchronization (Google, iCal, Outlook)
  • Online payment function: PayPal and by credit card, PayPal, direct debit, instant transfer (via Digistore24)
  • Integrations, e.g. Wordpress, MailChimp, Facebook
  • From € 10 per month

>> To the appointment booking App Appointmind

Book an appointment online

Booking an appointment online sounds like pretty basic software - and the website looks like it too - but the tool has more functions than you would expect. Unfortunately, I couldn't find a function to cancel or postpone appointments. The software is developed in Ettlingen and is available for you to test free of charge for 14 days.

  • GDPR compliant
  • Customer management with appointment history
  • Approve online bookings for all or for certain customers (e.g. regular customers)
  • Automatic reminders by email and SMS
  • Resource management
  • Employee administration
  • Include widget on your own website
  • From € 29 per month

Microsoft Bookings

There is one restriction with Microsoft Bookings: You can only use the app if you have already purchased the "Microsoft 365 Business" software. If that's the case, Microsoft Bookings can of course be wonderfully integrated into your existing work environment. The appointment booking app is integrated in the "Business Standard" version. You can test the whole package for one month for free.

  • GDPR compliant
  • Automatic appointment reminders
  • Postpone and cancel appointments
  • Create your own booking page
  • Automatic calendar synchronization
  • From € 10.50 per user and month (annual billing)


Timify offers you a wide range of functions to manage your appointments digitally. But: Unfortunately, I can't find any information about the cancellation or postponement of an appointment. Timify is free for individual users with a reduced range of functions.

  • GDPR compliant
  • Manage group bookings
  • Own booking page and widget for integration into existing website and Facebook
  • Adaptable to your design
  • Online payment option for your customers: inside (credit and debit cards, Giropay)
  • Apps for Windows and Mac as well as iOS and Android
  • Customer management
  • Manage rooms and resources
  • Synchronization with Google and Microsoft 365 business calendars
  • Integration in HubSpot
  • Automatic appointment reminders
  • Set buffer times
  • Paid version from € 25 per month (billed annually)

you can book me

You Can Book Me is developed in England and comes with a range of features to digitize your scheduling. The price is calculated from the number of calendars you want to connect. You can test the tool for 14 days free of charge.

  • Cancel and postpone appointments
  • Automatic appointment reminders and confirmations by email and SMS
  • Plan in buffers
  • Insert your own design
  • Manage your team's calendar and availability
  • Automatic consideration and adjustment to time zones
  • Integration in Zapier and Zoom
  • Online payment integration in Stripe
  • From € 7.20 per month and calendar (prepayment for two years)


edoobox from Switzerland is a holistic tool for booking, course and member management. The appointment booking app can also be of interest to trainers and coaches. Unfortunately, I cannot find any information on the cancellation and postponement of appointments. Not even which calendars are connected. You can test edoobox for 10 days for free.

  • GDPR compliant
  • Many integrated payment providers: PayPal, Sofortüberweisung, Stripe, debit cards, credit cards, Saferpay, Invoice, Authorize.net, Bitpay and Wirecard
  • Waiting list for overbooked offers
  • Customer management
  • iFrame can be integrated on your own website
  • Automatic appointment reminder by email
  • Paid versions either a fixed price from 19 € per month or a combination of a fixed price of 9 € per month + 1 CHF + 1% per booking

Book like a boss

With Book like a boss you also have a comprehensive appointment scheduling tool at hand. You can integrate the widget directly into your website or send your customers a BLAB link where they can book appointments. Unfortunately, I cannot find any function here to postpone or cancel appointments. You can test BLAB for 14 days free of charge.

  • Direct embedding in your website
  • Calendar synchronization with Google, Apple iCloud, Office 365, Outlook.com and Microsoft Exchange
  • Automatic appointment reminders via email and SMS
  • Many integrations, e.g. PayPal, Stripe, MailChimp, Wordpress, Zapier, Zoom
  • Internal messenger for communication with your customers
  • Automatic adjustment to time zones
  • Starts at $ 7.50 per month billed annually

Acuity Scheduling

Acuity Scheduling is part of the Squarespace website builder. Your customers can view your available appointments online and book them themselves. Before booking, you can use a questionnaire to collect the most important information about your clients. Acuity Scheduling is free with a very limited range of functions; the paid versions are available for free for seven days to test.

  • GDPR compliant
  • Postpone and cancel appointments
  • Automatic appointment reminders
  • Customers can pay online in advance (PayPal, Stripe)
  • Adapt to your own design
  • Manage multiple employees
  • Manage group bookings
  • Connect up to 36 calendars (Google, Outlook, Exchange, Microsoft 365 Business)
  • Sell ​​(discount) vouchers
  • Offer subscriptions and memberships
  • Many integrations, e.g. Zoom, GoToMeeting, MailChimp, Pipedrive, Zapier
  • Paid version from $ 15 per month for a calendar


Appointlet is developed by a small team in Portland, Oregon, USA. On their website, they promise up to 80% time savings if you use their appointment booking app 😉 Appointlet is free of charge with limited functionality.

  • Own booking page
  • Can be integrated into your own website
  • Postpone and cancel appointments
  • Automatic calendar synchronization (Google, Microsoft 365 Business)
  • Integration in Zapier, Leadpages, Zoom, GoToMeeting, Webhooks
  • Automatic adjustment to time zones
  • Employee administration
  • Automatic appointment reminders and email confirmations
  • Plan in buffers
  • Adapt to your own design
  • Receive online payments via Stripe
  • Paid version from $ 8 per month per user (billed annually)

>> To the appointment booking App Appointlet


SuperSaaS from Amsterdam is the "Supermarket model for Software as a Service" and likes to compare itself to Ikea: They offer well-designed products, you take care of the assembly and therefore the whole thing does not cost that much. The range of functions is definitely impressive. SuperSaas is free with limited functions.

  • GDPR compliant
  • Automatic appointment reminders by email and SMS
  • Cancel and postpone appointments
  • Automatic calendar synchronization (Google, iCal, Outlook, Microsoft 365 Business)
  • Resource planning
  • Manage waiting lists
  • Plan for buffer time
  • Employee administration
  • "Book now" button for your website and Facebook
  • iFrame or widget integration for your website
  • Various integrations via webhooks and API as well as via Zapier
  • Accept online payments via e.g. PayPal, Stripe or a credit system
  • Paid version from € 6 per month

>> To the appointment booking app SuperSaaS


If you only use an appointment booking app for initial meetings, you will save a lot of time and nerves. And not just for you, but also for your customers! You have more time to concentrate on your actual work, your appearance looks professional and organized, you don't have to worry about payment and your appointments are coordinated effectively and easily.

Have you already had experience with one of the tools listed? Did I forget a great one? Feel free to write to me in the comments!

No comments yet.

What do you think?