Comparison
Purple Hammer vs Stele
A factual side by side of two tools in AI Agents & Automation. Figures come from each product’s own site.
Purple Hammer
ListedPDF takeoff for construction estimators and QS teams, mark up drawings, measure quantities, compare revisions, and price the job in live spreadsheets. Mac and Windows.
Stele
ListedShared memory for AI coding agents. Claude Code, Cursor and Codex read what your project already decided, so context survives between tools and sessions.
| Purple Hammer | Stele | |
|---|---|---|
| Category | AI Agents & Automation | AI Agents & Automation |
| Pricing model | Paid | Freemium |
| Starting price | Not disclosed | Not disclosed |
| Free tier | No | Yes |
| Platforms | Not disclosed | Not disclosed |
| Techavy score | Not rated yet | Not rated yet |
About Purple Hammer
PDF takeoff for construction estimators and QS teams, mark up drawings, measure quantities, compare revisions, and price the job in live spreadsheets. Mac and Windows. The Bluebeam → Excel → Bluebeam → Excel dance is over. Both sets are aligned and scaled, so last revision's takeoff carries forward. Everything you'd use in Excel, plus estimating-native Power Syntax.
About Stele
Shared memory for AI coding agents. Claude Code, Cursor and Codex read what your project already decided, so context survives between tools and sessions. Only one of these agents knows this was tried last spring and rolled back. KNOW-142 : a captcha on checkout shipped last spring and was reverted after two weeks. The bot traffic is real, though it spikes on release days and is quiet the rest of the time. A gate armed only during a release window would avoid repeating that.
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