Part3
As of July 2026: $150/user/mo (Core) or $200/user/mo (Complete), billed annually, 5-user minimum — entry ≈ $9,000/yr. Free collaborator seats. No self-serve trial (demo-first).
Platform comparison
ARK Projex vs Part3
Part3 is a strong CA-only tool. ARK gives you the same CA workflows — including AI submittal review — plus the design phase, bidding, your CRM funnel, and invoicing, at a fraction of the entry price.
Pricing
ARK Projex
Unlimited $179/user/mo list — the Founding Forty lock $119/user/mo for three years, firms 41–100 lock $149/user/mo for three years. Staff seats $34/user/mo for people who log time and do assigned work. Construction à la carte $69/project/mo. First project free forever. Pre-launch: join the launch list to lock Founding Forty pricing.
Feature comparison
| Feature | Part3 | ARK Projex |
|---|---|---|
| Submittals w/ consultant routing & revision cycles | ✓ | ✓ |
| AI submittal review w/ spec citations | ✓ | ✓ |
| RFIs w/ consultant workflow | ✓ | ✓ |
| Field reports w/ PDF export | Yes — mobile, offline | ✓ |
| Drawing release sets + title-block OCR + supersession | Yes — auto version control | ✓ |
| Spec indexing + AI search | ✓ | ✓ |
| Changes (ASI/PR/CCD/CO) w/ formatted PDFs | Yes — including allowances/contingencies | ✓ |
| Pay applications: AIA G702/G703-layout PDFs + e-sign | Yes — certificates; not AIA-layout PDFs w/ e-sign | ✓ |
| In-browser PDF markup studio (ARK View) + Bluebeam Studio integration | No — sign & stamp only | ✓ |
| Meeting minutes w/ AI transcripts (Zoom/Teams/Fireflies/Read AI) | — | ✓ |
| Bidding management (first bid free) | — | ✓ |
| Design-phase management (milestones, phases & schedule, Gantt) | — | ✓ |
| CRM funnel (lead forms, speed-to-lead SMS/email, campaigns, booking pages) | — | ✓ |
| Time & invoicing (timesheets, invoices, 5 financial reports) | — | ✓ |
| Client portal w/ login | No — collaborator access only | ✓ |
| QuickBooks + Microsoft 365 connections | No — Procore/Deltek/Bluebeam adjacency | ✓ |
| Free unlimited collaborator/participant seats | ✓ | ✓ |
| Published pricing + self-serve trial | Published pricing yes / self-serve no | ✓ |
Where Part3 is strong
- ✓Offline mobile field reports
- ✓CA ops analytics dashboards
- ✓Procore submittal import