kitio.aiHASH vs Lettria
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. HASH starts at $30/mo and Lettria starts at See pricing page. Check both pricing pages for current plans.
At a glance
Best for
Category
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Automatic ontology extraction
- Self-updating knowledge graph
- Web scraping agents
- Process mapping and simulation
- Browser extension
- CSV export
- Document parsing
- Ontology generation
- Text-to-graph conversion
- GraphRAG retrieval
- Perseus developer tool
| Feature | HASH | Lettria |
|---|---|---|
| Best for | Open-source workspace that builds a knowledge graph from your data | GraphRAG and ontology tools for regulated industries |
| Category | Data & analytics | Data & analytics |
| Pricing model | Freemium | Paid |
| Starting price | $30/mo | See pricing page |
| Free plan | Yes | No |
| Made by | HASH | Lettria |
| Based in | – | France |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
HASH starts at $30/mo and Lettria starts at See pricing page. Check both pricing pages for current plans.
Free plan
Cheapest paid plan
Top plan
Free trial
4 plans
Free
Free
- App and browser extension
- Manual scraping
- CSV export
- Custom types
Plus
$30/mo
- Passive scraping
- Flows
- Private types
- $20/mo if billed annually
Team
$45/mo
- Per user
- Active scraping
- Two-way sync
- More integrations
Ultra
Contact sales
- Pages and apps
- Advanced data controls
- Custom integrations
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
HASH
- Open-source codebase
- Free plan for individuals
- Structured data that AI can reason over
- Paid plans are waitlist-only for now
- Entity enrichment costs extra per entity
- Ontology concepts take time to learn
Lettria
- Answers are traceable to source documents
- Targets regulated sectors
- Business experts can review ontologies
- Pricing is sales-led
- Needs ontology and graph know-how
- Heavy for simple document search
Which one should you choose?
Choose HASH if you want:
- Open-source codebase
- Free plan for individuals
- Structured data that AI can reason over
Watch out: paid plans are waitlist-only for now.
Choose Lettria if you want:
- Answers are traceable to source documents
- Targets regulated sectors
- Business experts can review ontologies
Watch out: pricing is sales-led.
HASH vs Lettria FAQ
What is the difference between HASH and Lettria?
HASH: Open-source workspace that builds a knowledge graph from your data. Lettria: GraphRAG and ontology tools for regulated industries. Both are data & analytics tools.
Is HASH or Lettria cheaper?
HASH starts at $30/mo and Lettria starts at See pricing page. Check both pricing pages for current plans.
Do HASH and Lettria have free plans?
HASH: Yes. Lettria: No.
Who makes HASH?
HASH is made by HASH.
Who makes Lettria?
Lettria is made by Lettria, based in France.
Which should I choose, HASH or Lettria?
Choose HASH if you value open-source codebase and free plan for individuals. Choose Lettria if you value answers are traceable to source documents and targets regulated sectors.