kitio.aiVisibleThread vs Workorb
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. VisibleThread starts at See pricing page and Workorb starts at $175/mo. Check both pricing pages for current plans.
AI proposal writing and RFP review for architecture and engineering firms
Free trial · $175/moAt a glance
Best for
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Opportunity search
- Bid/no-bid analysis
- Compliance matrices
- AI assistant for bid writing
- SharePoint integration
- Air-gapped deployment
- RFP analysis and outlines
- Proposal first drafts
- AI proposal evaluator
- Knowledge hub of past work
- Deltek and SharePoint connectors
| Feature | VisibleThread | Workorb |
|---|---|---|
| Best for | RFP and bid software with an AI assistant for proposal teams | AI proposal writing and RFP review for architecture and engineering firms |
| Category | Legal, finance & HR | Legal, finance & HR |
| Pricing model | Free trial | Free trial |
| Starting price | See pricing page | $175/mo |
| Free plan | No, trial available | No, trial available |
| Made by | VisibleThread | Workorb |
| Based in | – | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
VisibleThread starts at See pricing page and Workorb starts at $175/mo. Check both pricing pages for current plans.
Free plan
Cheapest paid plan
Top plan
Free trial
2 plans
RFP Evaluator
$175/mo
- Per user
- RFP understanding
- Proposal evaluator
Enterprise
Contact sales
- Knowledge Hub
- Enterprise support
Prices in USD, checked Oct 29, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
VisibleThread
- Handles whole RFP lifecycle
- Secure deployment options
- Free trial available
- Annual subscription with set user count
- Pricing needs a quote
- Geared to larger proposal teams
Workorb
- Built for AEC proposal workflows
- Uses the firm's own past submissions
- Connects to common AEC systems
- Expensive per-user pricing
- Knowledge hub only on Enterprise
- Narrow focus on AEC firms
Which one should you choose?
Choose VisibleThread if you want:
- Handles whole RFP lifecycle
- Secure deployment options
- Free trial available
Watch out: annual subscription with set user count.
Choose Workorb if you want:
- Built for AEC proposal workflows
- Uses the firm's own past submissions
- Connects to common AEC systems
Watch out: expensive per-user pricing.
VisibleThread vs Workorb FAQ
What is the difference between VisibleThread and Workorb?
VisibleThread: RFP and bid software with an AI assistant for proposal teams. Workorb: AI proposal writing and RFP review for architecture and engineering firms. Both are legal, finance & hr tools.
Is VisibleThread or Workorb cheaper?
VisibleThread starts at See pricing page and Workorb starts at $175/mo. Check both pricing pages for current plans.
Do VisibleThread and Workorb have free plans?
VisibleThread: No, trial available. Workorb: No, trial available.
Who makes VisibleThread?
VisibleThread is made by VisibleThread.
Who makes Workorb?
Workorb is made by Workorb.
Which should I choose, VisibleThread or Workorb?
Choose VisibleThread if you value handles whole rfp lifecycle and secure deployment options. Choose Workorb if you value built for aec proposal workflows and uses the firm's own past submissions.