Rainlendar vs UltraVNC

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

Rainlendar

UltraVNC

Rainlendar vs UltraVNC: The Verdict

⚡ Summary:

Rainlendar: Rainlendar is an open source desktop calendar application for Windows, Mac and Linux. It supports calendar events, tasks, and weather information. Rainlendar is lightweight, customizable, and supports online calendar integration.

UltraVNC: UltraVNC is an open-source, cross-platform remote desktop software that allows users to remotely control computers over a network. It uses the RFB protocol to transmit graphics and input between computers.

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	Rainlendar	UltraVNC
Sugggest Score	—	—
Category	Office & Productivity	Remote Work & Education
Pricing	Open Source	Open Source

Product Overview

Rainlendar

Description: Rainlendar is an open source desktop calendar application for Windows, Mac and Linux. It supports calendar events, tasks, and weather information. Rainlendar is lightweight, customizable, and supports online calendar integration.

Type: software

Pricing: Open Source

UltraVNC

Description: UltraVNC is an open-source, cross-platform remote desktop software that allows users to remotely control computers over a network. It uses the RFB protocol to transmit graphics and input between computers.

Type: software

Pricing: Open Source

Key Features Comparison

Rainlendar Features

Desktop calendar
Event management
Task management
Weather information
Customizable interface
Lightweight
Online calendar integration

UltraVNC Features

Remote desktop control
File transfer
Text chat
View-only mode
Multi-monitor support
Encryption
Authentication
Plugin architecture

Pros & Cons Analysis

Rainlendar

Pros

Open source
Free
Lightweight
Customizable
Cross-platform
Online calendar integration
Weather integration

Cons

Limited features compared to proprietary options
No mobile app

UltraVNC

Pros

Free and open source
Cross-platform
Lightweight
Easy to use
Secure encryption
Active development

Cons

Limited features compared to paid options
Can be difficult to set up
No mobile client
No web access
Lacks some enterprise features

Pricing Comparison

Rainlendar

Open Source

UltraVNC

Open Source

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