AppZen vs Onthos
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. AppZen starts at See pricing page and Onthos starts at See pricing page. Check both pricing pages for current plans.
At a glance
Best for
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Autonomous accounts payable
- AI expense report audit
- Corporate card audit
- VAT reclaim agents
- Low-code AI Agent Studio
- Industry classification
- Thematic factor models
- Thesis to company universe
- Source-linked knowledge base
- Access for AI agents
| Feature | AppZen | Onthos |
|---|---|---|
| Best for | AI agents for accounts payable, expense audits and corporate cards | Company, industry and theme ontology for investors and AI agents |
| Category | Legal, finance & HR | Legal, finance & HR |
| Pricing model | Paid | Paid |
| Starting price | See pricing page | See pricing page |
| Free plan | No | No |
| Made by | AppZen | Onthos |
| Based in | United States | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
AppZen starts at See pricing page and Onthos starts at See pricing page. Check both pricing pages for current plans.
Free plan
Cheapest paid plan
Top plan
Free trial
Prices in USD, checked Nov 5, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
AppZen
- Audits every expense, not samples
- Built specifically for finance teams
- Decisions are fully auditable
- Enterprise sales only
- No public pricing
- Needs integration with existing finance systems
Onthos
- Covers public and private companies
- Every fact linked to a source
- Useful for building thematic indices
- Built for financial institutions only
- No public pricing
- Recently renamed, so docs may still say Theia
Which one should you choose?
Choose AppZen if you want:
- Audits every expense, not samples
- Built specifically for finance teams
- Decisions are fully auditable
Watch out: enterprise sales only.
Choose Onthos if you want:
- Covers public and private companies
- Every fact linked to a source
- Useful for building thematic indices
Watch out: built for financial institutions only.
AppZen vs Onthos FAQ
What is the difference between AppZen and Onthos?
AppZen: AI agents for accounts payable, expense audits and corporate cards. Onthos: Company, industry and theme ontology for investors and AI agents. Both are legal, finance & hr tools.
Is AppZen or Onthos cheaper?
AppZen starts at See pricing page and Onthos starts at See pricing page. Check both pricing pages for current plans.
Do AppZen and Onthos have free plans?
AppZen: No. Onthos: No.
Who makes AppZen?
AppZen is made by AppZen, based in United States.
Who makes Onthos?
Onthos is made by Onthos.
Which should I choose, AppZen or Onthos?
Choose AppZen if you value audits every expense, not samples and built specifically for finance teams. Choose Onthos if you value covers public and private companies and every fact linked to a source.