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SPECIFICTION
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Adstacker vs Pencil

Adstacker

adstacker.io

Pencil

trypencil.com

Side by side

FigureAdstackerPencil
Price from$99/mo$11/mo
Free plan——
Free trial—Yes
Open source——
WebYesYes
Plans published313
Spec score · Ad Creative Testing Tools7.7 (#11)8.4 (#6)
SecurityAdstacker says it implements reasonable administrative, technical, and organizational safeguards, while noting that it cannot guarantee absolute security.Pencil says it has SOC 2 Type II audited security controls and that customer data is not used to train its models.
SupportSupport is available by email, with the About page stating a response time within 1 business day.Core includes chat support, Growth includes direct access to the product team and roadmap, and Pro includes dedicated customer success.

Plans

Adstacker

  • Creator Plan$99 a month
  • Pro Plan$249 a month
  • Agency Plan$599 a month

Adstacker pricing →

Pencil

  • Basic — 50 generations annual$11 a month
  • Core$11 a month
  • Basic — 50 generations$14 a month
  • Basic — 100 generations annual$19 a month
  • Basic — 100 generations$24 a month
  • Basic — 250 generations annual$44 a month
  • Growth$44 a month
  • Basic — 250 generations$55 a month
  • Basic — 500 generations annual$79 a month
  • Basic — 500 generations$99 a month

Pencil pricing →

In their own words

Adstacker

Adstacker has no write-up on Specifiction yet; its figures are above.

Visit adstacker.io

Pencil

Pencil is a web-based creative marketing platform that uses AI to generate advertising copy, images, and video ads. Its workflow runs from briefing and generation through editing, approvals, publishing, and evaluation. The browser editor handles text, image, video, and HTML, with exports in GIF, MP4, HTML5, and static formats. Pencil says a single template can produce thousands of variations and be adapted across markets through localization or translation. Listed generally available ad integrations include Meta, TikTok Ads, LinkedIn Ads, Google Ads, YouTube, Display & Video 360, and Campaign Manager 360. Users can create six ads for free through a guided experience, but full platform access requires a paid plan. Core costs $11 a month billed annually and includes 50 generations per month and one workspace. Growth costs $44 a month billed annually, with 250 monthly generations and unlimited workspaces. Pro has custom pricing and unlimited generations. Pencil says its security controls are SOC 2 Type II audited and that customer data is not used to train its models.

Visit trypencil.com