> For the complete documentation index, see [llms.txt](https://learn.islash.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://learn.islash.io/features/conversion-engagement-tools/in-app-calendar/calendar-plus.md).

# Supports Both 1-to-1 and Multi-Capacity Services

Types of In-App Calendars

Whether your business runs on personal sessions or shared availability, the In-App Calendar adapts.

## ✔ 1-to-1 Services

Ideal for:

* Beauty appointments
* Personal training
* Private tutoring
* Consultations

Each time slot supports one booking—keeping schedules precise and controlled.

### 1. Basic Calendars: **Single Booking Per Time Slot**

Ideal for situations where only one booking can be made in a given time slot. For example, a meeting room can only be reserved for one meeting at a time, ensuring no overlaps and maximum privacy.

## ✔ Multi-Capacity Services

Perfect for:

* Group classes
* Workshops
* Training sessions
* Shared service resources

Multiple customers can book the same time slot—maximizing capacity without manual tracking.

### 2. **Calendars Plus: Multiple Bookings Per Time Slot**

Perfect for scenarios where multiple bookings can occur simultaneously. For instance, a hair specialist can manage several clients within the same time slot. These calendars are easily identifiable with a special icon, making it simple to differentiate.