UpCodes tells you the code. Plan Proof tells you what your city will flag.
UpCodes (and its new Copilot) is a great code-research library. Plan Proof reads your actual drawings and forecasts the corrections your jurisdiction's reviewers send — with the sheet, the section, and the evidence.
| Plan Proof | UpCodes / Copilot | |
|---|---|---|
| Primary job | Forecast corrections on your drawings | Research code sections + AI Q&A |
| Reads your plan set | Yes — native drawing scan | Copilot reviews, but rooted in code text |
| Jurisdiction-specific flags | Yes — from real correction letters | Code text by adopted edition |
| Pricing | $39 / check, public · free preview | Freemium → subscription |
| Proof per finding | Sheet ref + code + "seen in X% of sets" + confidence | Code citation (accuracy flagged as a user concern) |
Where UpCodes wins (be honest)
The best searchable code library, breadth across jurisdictions and editions, and a fast research Copilot for “what does the code say about X.” If your job today is looking up code, UpCodes is excellent.
Where Plan Proof wins
You don't want to research the code — you want to know what will get kicked back on the set you're about to submit. Plan Proof scans the drawings and forecasts the corrections your specific department actually writes, so you fix them first. And every finding shows its receipt, so you're not “double-checking the AI” — the evidence is right there.
Plan Proof
Upload a plan set. We scan your first 8 sheets free and return one fully detailed finding plus the real counts — no account needed.
Scan your plan set free →Titleblock
Build a free public firm profile — your projects, disciplines, and jurisdictions, on a page clients and search engines can actually find.
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Comparison based on publicly available information as of July 2026. Competitor pricing and capabilities are self-reported by each vendor and may change — verify current details on each vendor's site.