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Callout.app

Catch building code violations before your PE stamp. AI reviews your PDF drawing sets against 33+ building codes across all engineering disciplines. Results in seconds.

Callout uses AI to perform first-pass construction drawing reviews against building codes and standards. Upload your PDF drawing sets, select from 33+ supported codes across 7 engineering disciplines (mechanical, structural, architectural, electrical, plumbing, energy, fire protection), and receive a structured list of findings in seconds.

Each finding includes a severity rating (Critical, Major, Minor, Advisory), confidence level (High, Medium, Low), exact code section citation, and a suggested resolution. Licensed PEs review each finding and accept, reject, or edit it. Over time, Callout learns from those decisions and adapts future reviews to match each engineer's judgment, without any model fine-tuning.

Key features:

-Multi-discipline single-pass review: check drawings against codes from all 7 disciplines in one run -Firm standards library: add plain-English firm-specific requirements that get checked alongside model codes -Jurisdiction amendments: upload local or state code amendments and cross-reference them against base codes -Confidence ratings: each finding signals how reliable the citation is, helping PEs triage efficiently -Export and sharing: CSV, Excel, and PDF export, plus read-only shareable report links for team collaboration -Organization support: shared credit pools, role-based access, firm-level calibration, and audit logging

Pay-per-use pricing with no subscription. Credits never expire. 50 free credits on signup, no credit card required. Built by a licensed Mechanical PE.

A startup from the United States that is founded by Benjamin Stortz.

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Pricing:

Paid
Free Trial
$8 / One-off (100 credits (enough for up to 25 sheets))
Official Pricing

Platforms:

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Callout.app Reviews and Details

This page is designed to help you find out whether Callout.app is good and if it is the right choice for you.

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Screenshots and images

Add drawings, choose codes, apply local amendments (as desired), and run analysis. //
2026-04-04
Review results in seconds. Approve, edit, or reject findings individually. //
2026-04-04
Add personal or firm-level (shared) local jurisdiction amendments and text-based standards to be applied to reviews. Toggle each on/off individually. //
2026-04-04
Navigation Tabs: Review, History, Training, Standards, Organization. Each tab gives quick access to a different part of the workflow: running new reviews, browsing past results, tracking AI accuracy over time, managing firm standards and jurisdiction amendments, and configuring your team. //
2026-04-04
Account Menu: Avatar dropdown in the top right with credit balance, credit purchase, email notification preferences, and sign out. //
2026-04-04
Add/remove firm members and set org standard editing and purchasing permissions (Reviewer, Admin or Owner). As an Owner or Admin, view a historical audit log of all actions performed by firm members. //
2026-04-04

Features & Specs

Supported Codes

33+ building codes and standards (IMC, IBC, ASHRAE, NFPA, NEC, IPC, ASCE, ACI, AISC, and more)
AEC Disciplines

Mechanical, Structural, Architectural, Electrical, Plumbing, Energy, Fire Protection
Review Depth Options

Quick (2 credits/sheet), Standard (3), Thorough (4)
Export Formats

CSV, Excel, PDF, shareable report links
Pricing

Pay-per-use credits, no subscription. Starts at $8 for 100 credits
Free Trial

50 credits on signup, no credit card required

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Questions & Answers

As answered by people managing Callout.app.

What makes Callout.app unique?

Callout learns from each engineer's decisions. When a PE accepts, rejects, or edits a finding, that feedback shapes future reviews to match their judgment. Over time, each engineer gets a personalized review profile without any model training. Combined with firm-specific standards, jurisdiction amendments, and multi-discipline single-pass review across 33+ codes, no other tool offers this combination.
Why should a person choose Callout.app over its competitors?

Most tools in this space are either digital markup tools (Bluebeam, PlanGrid) that don't analyze drawings, or code lookup tools (UpCodes) that don't review uploaded plans. Callout is the only tool that takes a PDF drawing set, reviews it against building codes from all 7 engineering disciplines in one pass, and returns structured findings with exact code citations and severity ratings. It's also pay-per-use with no subscription, so you only pay when you use it.
How would you describe the primary audience of Callout.app?

Licensed Professional Engineers and MEP firms who review construction drawings for code compliance. The typical user is a PE at a small to mid-size engineering firm who reviews mechanical, structural, electrical, plumbing, or fire protection drawings and wants a faster first pass before stamping.
What's the story behind Callout.app?

Built by a licensed Mechanical PE who spent too many hours doing manual code compliance reviews. The idea was simple: AI is good at cross-referencing documents, and building code review is fundamentally a cross-referencing task. Callout started as a tool to speed up the founder's own review workflow and grew into a product for the broader engineering community.
Which are the primary technologies used for building Callout.app?

Next.js, Anthropic Claude API, Supabase (PostgreSQL), Stripe, and Vercel.

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Is Callout.app good?

Callout.app is a solid, user-friendly tool for collecting visual feedback and bug reports directly on websites, making it a good choice for teams that need streamlined communication and faster review cycles.

Why choose Callout.app?

Enables visual feedback and annotations directly on live websites, reducing miscommunication
Simplifies bug reporting by automatically capturing screenshots, browser data, and context
Improves collaboration between designers, developers, clients, and stakeholders
Integrates with popular project management and communication tools to streamline workflows
Offers an intuitive interface that requires minimal setup and onboarding

Recommended for

Web design and development agencies gathering client feedback
Product and QA teams tracking and reporting bugs
Freelancers who need clear, contextual client communication
Marketing teams reviewing website content and layout changes
Remote teams needing asynchronous visual collaboration

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Public traffic stats of Callout.app

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Domain Rating (DR)

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Domain Authority (DA)

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Is Callout.app good? This is an informative page that will help you find out. Moreover, you can review and discuss Callout.app here. The primary details have not been verified within the last quarter, and they might be outdated. If you think we are missing something, please use the means on this page to comment or suggest changes. All reviews and comments are highly encouranged and appreciated as they help everyone in the community to make an informed choice. Please always be kind and objective when evaluating a product and sharing your opinion.