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Justinmind vs Pencil Project
People
Price
Published entry price
$9+per user / month
Free
Prototyping Tools
Annual estimate10 people, entry price
$1,080+
10 people
Free
Offer
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Prototyping Tools
Overview
Focus
Prototyping Tools
Prototyping Tools
Product
All-in-one prototyping tool for web and mobile apps with wireframing, interactive prototypes, and user testing capabilities.
Free and open-source GUI prototyping tool with built-in shapes for desktop and web mockups.
Headquarters
Barcelona, Spain
Hanoi, Vietnam
Company size
11-50 employees
2-10 employees
Founded
2009
2012
Pricing details
Plan
Published entry price
Published rate
$9+ / user / month
Free
Billable seats
10
Free options
Free plan, Free trial
Free plan
Pricing source
Source updated
Oct 29, 2026
Oct 29, 2026