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OpenProject vs Zoiper

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

OpenProject icon
OpenProject
Zoiper icon
Zoiper

OpenProject vs Zoiper: The Verdict

⚡ Summary:

OpenProject: OpenProject is an open source project management software. It provides tools to plan projects and tasks, track time and costs, collaborate with teams, and report on progress. Key features include Gantt charts, roadmaps, issue tracking, forums, wikis, and document management.

Zoiper: Zoiper is a softphone application for making VoIP calls over the internet. It supports popular protocols like SIP, IAX, and H.323. Zoiper provides high quality audio/video calls, instant messaging, presence management and other communication features.

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 OpenProject Zoiper
Sugggest Score — —
Category Business & Commerce Social & Communications
Pricing Open Source —

Product Overview

OpenProject
OpenProject

Description: OpenProject is an open source project management software. It provides tools to plan projects and tasks, track time and costs, collaborate with teams, and report on progress. Key features include Gantt charts, roadmaps, issue tracking, forums, wikis, and document management.

Type: software

Pricing: Open Source

Zoiper
Zoiper

Description: Zoiper is a softphone application for making VoIP calls over the internet. It supports popular protocols like SIP, IAX, and H.323. Zoiper provides high quality audio/video calls, instant messaging, presence management and other communication features.

Type: software

Key Features Comparison

OpenProject
OpenProject Features
  • Gantt charts
  • Roadmaps
  • Issue tracking
  • Forums
  • Wikis
  • Document management
Zoiper
Zoiper Features
  • Voice over IP (VoIP) calling
  • Video calling
  • Instant messaging
  • Presence management
  • Supports popular protocols like SIP, IAX, and H.323
  • High quality audio and video
  • Call recording
  • Call transfer
  • Call forwarding
  • Caller ID
  • Conference calling
  • Encryption for secure calls
  • Auto redial

Pros & Cons Analysis

OpenProject
OpenProject
Pros
  • Open source and free
  • Customizable and extensible
  • Good collaboration features
  • Intuitive user interface
Cons
  • Can be complex for simple needs
  • Limited reporting compared to paid options
  • Steep learning curve
Zoiper
Zoiper
Pros
  • Free version available
  • Easy to set up and use
  • Good call quality
  • Supports many VoIP protocols
  • Available for Windows, Mac, Linux, iOS and Android
  • Allows calling regular phone numbers
  • Has many useful call features
Cons
  • Some features only in paid versions
  • Can occasionally drop calls
  • Some compatibility issues
  • Customer support could be better

Pricing Comparison

OpenProject
OpenProject
  • Open Source
Zoiper
Zoiper
  • Not listed

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Learn More About Each Product

OpenProject
OpenProject
Reviews, pricing & alternatives →
Zoiper
Zoiper
Reviews, pricing & alternatives →

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