Calendra blog

Guides for service businesses

Practical guides on appointment booking, reducing no-shows, invoicing, fiscal verification and GDPR for service businesses in Slovenia.

Written by David Mirc, Founder and developer of Calendra.

Buyer guide

How to choose appointment booking software

Ten criteria for comparing appointment booking software: availability logic, payments, invoicing, reminders, data export and the real total cost.

4 min read
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Choose appointment booking software on five decisive criteria: whether it calculates availability correctly for how you actually work, whether it supports the payments and invoices you need, what it really costs once extra users and SMS are included, whether you can export your data at any time, and whether the interface is in your team's language.

Appointment booking

How to reduce no-shows in your salon

A no-show means an empty chair and lost revenue. Practical measures using reminders, cancellation policies and deposits that work for service businesses.

4 min read

Invoicing and payments

Fiscal verification of invoices in Slovenia

When a service business must fiscally verify invoices in Slovenia, what counts as a cash payment, and what you need to run a compliant cash register.

4 min read

Privacy and compliance

GDPR for salons and service businesses

Which client data you may keep, for how long, when you actually need consent, and what the data processing agreement with your software vendor must cover.

4 min read

Appointment booking

From spreadsheets and paper to an online calendar

What Excel and a paper diary really cost you for appointment management, when it is worth replacing them, and how to migrate without losing client history.

4 min read

Reminders

SMS or email for appointment reminders

A comparison of SMS and email for appointment reminders: reach, cost, time to read, and when to use each channel or both together.

4 min read

Getting started

Set up online booking in 15 minutes

A seven-step process that takes you from sign-up to a working public booking link, including reminders and a cancellation policy that customers can see.

4 min read

Getting started

Appointment booking for sole traders

What a sole trader genuinely needs for appointments, invoices and reminders when working alone with nobody to answer the phone during a service.

4 min read

Glossary

Glossary of online booking terms

Definitions of the terms you meet when choosing appointment booking software: availability, buffer time, deposits, no-shows, fiscal identifiers and more.

4 min read