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Pencil vs Promer AI

Two fact sheets from our own research, side by side — pricing, platforms, API access and status re-checked by us rather than quoted from the vendors. Promer AI publishes a starting price ($7.20); Pencil does not. Both have a free tier.

PencilDesign canvas that lives in your repo: draw a screen, get code your editor and coding agent can readPromer AIResearches a product's market and competitor ads, then generates finished static or video ad creatives from a product URL.

Side by side

FactPencilPromer AI
CategoryDesign-to-CodeAd Creative Generation
Pricing modelFreeFreemium
Starts at—$7.20 month
Public APINoNo
PlatformsmacOS, Windows, Linux, Vscode ExtWeb
CompanyHigh Agency, Inc.Promer
Launched2026—
Last verifiedSep 6, 2026Sep 1, 2026

What our research says

Pencil

The interesting decision here is storing the design as a file in the repository instead of a cloud document — it means a branch carries its own design state and a coding agent can read the canvas through MCP without an export step. That is a real answer to the handoff problem rather than another Figma-to-React exporter. It is also very new, free with no stated business model, and only worth adopting if your team already works with a coding agent in the loop.

Pros

  • Canvas is a .pen file stored locally and versioned with git, not a cloud document
  • Editor extension covers VS Code, Cursor, Windsurf and Antigravity rather than one IDE
  • Ships an MCP server so a coding agent can read the design directly
  • Native desktop builds for macOS (Apple Silicon and Intel), Windows x64 and Linux, plus an npm CLI
  • Free with no credit card at time of check

Cons

  • No pricing at all yet, which means no commitment about what stays free
  • Very young — launched January 2026, so ecosystem, plugins and file-format stability are unproven
  • Local-first storage means collaboration is whatever your git workflow gives you, with no built-in review tooling

Promer AI

Promer AI bundles the research step most ad tools skip, pulling competitor angles and market data before it generates a creative, which suits merchants who don't have a media buyer doing that legwork. Video output is credit-hungry, so the cheaper tiers mostly cover static image ads rather than the video creative that tends to perform best on TikTok and Reels.

Pros

  • Starts from a product URL and researches competitor ads automatically
  • Generates both static images and short video creatives
  • Free plan available with no credit card
  • Reports a large existing user base and ad-template library

Cons

  • Video generation eats credits fast relative to the monthly allowance
  • Unlimited downloads and video animation are paid-tier only
  • Country of incorporation beyond 'Vietnam' isn't detailed on the site

Which one fits

Choose Pencil if you need

  • Solo developers and small teams where the same person designs and implements
  • Workflows where a coding agent generates the components and needs a design source it can read
  • Projects that want design state to branch and merge with the code

Choose Promer AI if you need

  • Solo e-commerce sellers without a creative team
  • Dropshippers testing many ad angles quickly
  • Agencies managing ad creative for several small brands

More comparisons

Browse all Design-to-Code →