Skip to content

Pencil Project vs Viber

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

Pencil Project icon
Pencil Project
Viber icon
Viber

Pencil Project vs Viber: The Verdict

⚡ Summary:

Pencil Project: Pencil Project is a free and open source GUI prototyping and mockup tool. It allows users to create wireframes and prototypes for software interfaces and websites quickly and easily, without programming knowledge.

Viber: Viber is a free messaging and calling app for smartphones. It uses your phone number to connect you with people in your contacts and allows free calls, texts, photos and video messages over WiFi.

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 Pencil Project Viber
Sugggest Score
Category Development Social & Communications
Pricing Open Source

Product Overview

Pencil Project
Pencil Project

Description: Pencil Project is a free and open source GUI prototyping and mockup tool. It allows users to create wireframes and prototypes for software interfaces and websites quickly and easily, without programming knowledge.

Type: software

Pricing: Open Source

Viber
Viber

Description: Viber is a free messaging and calling app for smartphones. It uses your phone number to connect you with people in your contacts and allows free calls, texts, photos and video messages over WiFi.

Type: software

Key Features Comparison

Pencil Project
Pencil Project Features
  • GUI prototyping
  • Wireframing
  • Mockup creation
  • Export to HTML
  • Built-in shape library
  • Bitmap image support
  • Pages and layers
Viber
Viber Features
  • Free calls
  • Free messages
  • Group chats
  • Stickers
  • Photo and video sharing
  • Voice messages
  • Location sharing

Pros & Cons Analysis

Pencil Project
Pencil Project

Pros

  • Free and open source
  • Easy to use
  • Cross-platform
  • Good for rapid prototyping
  • Large shape library
  • Active community support

Cons

  • Limited features compared to paid tools
  • Not great for high-fidelity prototypes
  • Limited export options
  • No collaborative editing features
Viber
Viber

Pros

  • Free calls and messages
  • Works across platforms
  • Good call quality
  • Fun stickers and emojis
  • Group chats

Cons

  • Contacts need to be using Viber too
  • Some features are paid only
  • No cloud sync between devices
  • Limited customization options

Pricing Comparison

Pencil Project
Pencil Project
  • Open Source
Viber
Viber
  • Not listed

Related Comparisons

Ready to Make Your Decision?

Explore more software comparisons and find the perfect solution for your needs