vioscaleAI
Comparison

MockFlow vs Pencil Project

On the evidence we track, MockFlow leads this comparison with a composite score of 74/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

MockFlow full profile →Pencil Project full profile →
Machine formatsMarkdownJSONGraphQLMarkdown is open. JSON and GraphQL need a free key.
★MockFlow74
Pencil Project30
Score
vioscaleAI score
MockFlow74 / 100medium · 74%
Pencil Project30 / 100medium · 62%
Pricing
Free tier
MockFlow✓
Pencil Project✓
Model
MockFlowfreemium
Pencil Projectopen_source
Price level
MockFlowlow
Pencil Projectfree
Transparent
MockFlow✓
Pencil Project–
Integrations
Count
MockFlow31
Pencil Project1
Security
Certifications
MockFlowSOC 2 Type II, ISO 27001
Pencil Project–
Disclosure policy
MockFlow✓
Pencil Project–
Iso27001
MockFlow✓
Pencil Project–
Scorecard
MockFlow–
Pencil Project2.2
Soc2
MockFlow✓
Pencil Project–
Trust center
MockFlowhttps://mockflow.com/security/
Pencil Project–
Vulnerabilities
Adoption
Dependent repos
MockFlow–
Pencil Project0
Github stars
MockFlow–
Pencil Project9,875
Activity
Commits last 30d
MockFlow–
Pencil Project0
Release
Cadence days
MockFlow–
Pencil Project41
History
MockFlow–
Pencil Project11 items
License
Spdx
MockFlow–
Pencil ProjectGPL-2.0
Language
Primary
MockFlow–
Pencil ProjectJavaScript
Market
Availability
MockFlowAvailable worldwide · Popular in US
Pencil Project–
Content
Faq
MockFlow7 items
Pencil Project4 items

Capabilities

Feature-by-feature on the axes that matter for wireframing. “-” means undocumented, not absent.

Capabilities
Architecture model
MockFlowManaged cloud saas browser
Pencil ProjectDesktop local application
Enforced low fidelity sketch rendering aesthetic
MockFlow✗
Pencil Project-
Pre built ios android web UI component library
MockFlow✓
Pencil Project✓
AI generation from text prompts or napkin sketches
MockFlow✓
Pencil Project-
Drag and drop click through user flow linking
MockFlow✓
Pencil Project✓
Real time multiplayer crdt cursor sync
MockFlow✓
Pencil Project-
Confluence and jira native iframe embedding
MockFlow✓
Pencil Project-
Export to high fidelity tools figma sketch
MockFlow✓
Pencil Project-
Click heatmap and basic usability testing integration
MockFlow-
Pencil Project-
Offline editing mode
MockFlow✓
Pencil Project✓
SOC2 type ii
MockFlow✓
Pencil Project-
ISO 27001
MockFlow✓
Pencil Project-
Pricing model
MockFlowPer editor seat monthly
Pencil Project-

What each one is

The product in its own terms, so the numbers below have context.

MockFlow

Leader

A cloud-based whiteboard and wireframing tool where teams brainstorm, design, and prototype together in real-time, with integrated AI to generate layouts, flows, and code from text prompts.

Independently observed

Pencil Project

A freely available desktop tool for creating wireframes and mockups with built-in templates for web, mobile, and desktop user interfaces. Includes diagram drawing, interactive prototyping, and multi-format export capabilities.

Independently observed

Pricing

List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.

MockFlow

Leader
HybridFree tier

Free plan available. Paid plans at per-editor-seat pricing, billed monthly or yearly.

  • BasicFree
    • Wireframing and prototyping
    • Diagrams, mindmaps, flowcharts, moodboards, storyboards
    • WireframePro UI design tool
    • All templates and component libraries
    • Brainstorming with AI assistance
    • +3 more
  • PlusPer editor seat, billed monthly or yearly
    • All Basic features
    • Live polls, voting, spinners, timers for workshops
    • Connectors to 20+ business apps
    • SSO, SAML, SCIM authentication
    • Offline desktop app for Windows and macOS
    • +4 more
  • MaxPer editor seat with production-ready code generation
    • All Plus features
    • Build mode: export to React, iOS, Android, and other frameworks
    • Figma export
    • Custom team UI kits
    • Offline desktop app
    • +2 more
as of verify ↗

Pencil Project

Open sourceFree tier

Free and open-source

as of verify ↗

Platform & deployment

Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.

Platforms
Web
MockFlow✓
Pencil Project✗
macOS
MockFlow✓
Pencil Project✓
Windows
MockFlow✓
Pencil Project✗
Linux
MockFlow✗
Pencil Project✓
Deployment
Cloud / SaaS
MockFlow✓
Pencil Project–
Hybrid
MockFlow✓
Pencil Project–

Integrations

What each product connects to. Counts come from the vendor's own integration directory where one exists.

MockFlow

Leader
40 total
  • Slack
  • Microsoft Teams
  • Gmail
  • Outlook
  • Office 365
  • Jira
  • Confluence
  • Trello
  • Linear
  • Asana
  • Notion
  • Google Drive
  • Google Docs
  • Google Sheets
  • Airtable
  • GitHub
  • HubSpot
  • Google Analytics
  • Mixpanel
  • Amplitude
  • PostHog
  • Fathom
  • Google Calendar
  • Claude
  • +16 more
Independently observed

Pencil Project

1 total
  • OpenClipart.org
Independently observed
Still deciding?

MockFlow or Pencil Project: which one depends on you

A composite score cannot know your constraints. Describe them and both get re-weighted against what you actually need, with the evidence behind every position.

Free to run, no account needed to start. How the evaluation works

Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.