aCalendar vs SME Server

Professional comparison and analysis to help you choose the right software solution for your needs.

aCalendar

SME Server

aCalendar vs SME Server: The Verdict

⚡ Summary:

aCalendar: aCalendar is an open-source calendar and scheduling application for Android. It features a simple interface for managing events, reminders, and tasks. Syncs with various services like Google Calendar.

SME Server: SME Server is an open source Linux distribution based on CentOS designed for easy deployment of servers for small and medium businesses. It includes pre-configured applications like email, web hosting, firewall, etc.

Both tools serve their respective audiences. Compare the features, pricing, and user ratings above to determine which best fits your needs.

Last updated: May 2026 · Comparison by Sugggest Editorial Team

Feature	aCalendar	SME Server
Sugggest Score	—	—
Category	Office & Productivity	Network & Admin
Pricing	Open Source	Open Source

Product Overview

aCalendar

Description: aCalendar is an open-source calendar and scheduling application for Android. It features a simple interface for managing events, reminders, and tasks. Syncs with various services like Google Calendar.

Type: software

Pricing: Open Source

SME Server

Description: SME Server is an open source Linux distribution based on CentOS designed for easy deployment of servers for small and medium businesses. It includes pre-configured applications like email, web hosting, firewall, etc.

Type: software

Pricing: Open Source

Key Features Comparison

aCalendar Features

Month, week, day, agenda views
Recurring events
Reminders and alarms
Synchronization with Google Calendar
Integration with contacts
Multiple calendar support
Event sharing via SMS, email
Search events
Customizable widgets
Multiple color themes

SME Server Features

Web server (Apache)
Mail server (Postfix)
Firewall
VPN
File sharing
Intrusion detection
Antivirus
Antispam
Webmail (Horde)
Groupware (Kolab)
Monitoring tools

Pros & Cons Analysis

aCalendar

Pros

Open source
Simple and easy to use
Good integration with Android
Syncs with Google Calendar
Basic features for free

Cons

Limited features compared to proprietary options
No support for iOS or web
Sync issues reported
Development seems stagnant

SME Server

Pros

Easy to install and configure
Good selection of preconfigured services
Active community support
Free and open source

Cons

Limited scalability for large deployments
Relies on older versions of some software components
Limited selection of supported hardware

Pricing Comparison

aCalendar

Open Source

SME Server

Open Source

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