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Head-to-head · Knowledge Graph Software

Neo4j vs Progress Semaphore

  • Updated Oct 2026
  • Both researched from official sources
  • 5 checks side by side
Higher score Neo4j #1 in Knowledge Graph Software 9.3/10 Free plan · 14-day trial Free planFree trial✓ 0 of 4 features Visit Neo4j
Progress Semaphore #3 in Knowledge Graph Software 9.0/10 Pricing on request · 30-day trial Free trial✓ 4 of 4 features Visit site

Neo4j leads on 1 check, Progress Semaphore on 0, and 4 are even. Who comes out ahead on the 5 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreNeo4j · 9.3/10
  • Free planonly Neo4j
  • Free trialboth
  • Most featuresProgress Semaphore · 4 of 4

Neo4j scores higher on our rubric for knowledge graph software: 9.3 against 9.0 out of 10; our editors rank them #1 and #3.

Neo4j offers free plan; Progress Semaphore doesn't.

Neo4j is the better fit for property-graph applications with strong developer tooling. Progress Semaphore is the better fit for mature ontology and semantic-classification teams.

  • Neo4j fits best

    Property-graph applications with strong developer tooling

  • Progress Semaphore fits best

    Mature ontology and semantic-classification teams

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature Neo4j 9.3/10 Visit ↗ Progress Semaphore 9.0/10 Visit ↗
At a glance
Editor score 9.3 9.0
Ranking #1 in Knowledge Graph Software #3 in Knowledge Graph Software
Best for Property-graph applications with strong developer tooling Mature ontology and semantic-classification teams
Pricing model Free plan + paid Paid
Starting price — —
Free plan ✓ (best) —
Free trial 14 days 30 days
Free trial length 14 days 30 days
Deployment Cloud, Self-hosted Cloud, Self-hosted
Platforms Web, Windows, macOS, Linux Web, Windows, Linux
Support Tickets, Live chat, Community, Docs Community, Docs
Compliance SOC 2, ISO 27001, GDPR, HIPAA SOC 2
Integrations 10 integrations 7 integrations
Built for Small business, Mid-market, Enterprise Mid-market, Enterprise
Features Neo4j 0/4 · Progress Semaphore 4/4
Ontology modeling Not checked yet ✓ (best)
Semantic reasoning Not checked yet ✓ (best)
RDF/SPARQL support Not checked yet ✓ (best)
Graph visualization Not checked yet ✓ (best)
Specs
Import formats Not checked yet RDF, Excel spreadsheets
Deployment Not checked yet Both
Query languages Cypher, GQL SPARQL
Our review
Pros
  • Native nodes, relationships, properties, and Cypher queries
  • ACID transactions, clustering, failover, and horizontal scaling
  • Graph algorithms, vector search, connectors, and official libraries
  • Covers ontology, taxonomy, thesaurus, RDF, and SPARQL workflows
  • Adds classification, fact extraction, enrichment, visualization, and mapping
  • Supports web, Windows, Linux, APIs, and cloud, on-premises, or hybrid deployment
Cons
  • Professional starts at $65 per GB per month
  • Business Critical requires a minimum 2GB cluster
  • Native property-graph focus may not suit RDF-first projects
  • Contact-sales pricing makes plan comparison less immediate
  • Its enterprise focus may exceed the needs of smaller teams
  • Development is limited to demos, development, and capability evaluations
Our verdict

Neo4j is a native property graph database for developers, data scientists, and organizations working with connected data. It stores nodes, relationships, and properties, then exposes them through the Cypher declarative query language.…

Read the review →

Progress Semaphore is a semantic AI platform for enterprises managing knowledge models, ontologies, taxonomies, controlled vocabularies, thesauri, and metadata. It is suited to teams building enterprise knowledge graphs, semantic search,…

Read the review →
  1. Neo4jKnowledge Graph Software 9.3Free plan · 14-day trial
  2. Progress SemaphoreKnowledge Graph Software 9.0Pricing on request · 30-day trial

Strengths and trade-offs

  • Neo4j — where it wins

    • Native nodes, relationships, properties, and Cypher queries
    • ACID transactions, clustering, failover, and horizontal scaling
    • Graph algorithms, vector search, connectors, and official libraries

    Where it doesn't

    • Professional starts at $65 per GB per month
    • Business Critical requires a minimum 2GB cluster
    • Native property-graph focus may not suit RDF-first projects
  • Progress Semaphore — where it wins

    • Covers ontology, taxonomy, thesaurus, RDF, and SPARQL workflows
    • Adds classification, fact extraction, enrichment, visualization, and mapping
    • Supports web, Windows, Linux, APIs, and cloud, on-premises, or hybrid deployment

    Where it doesn't

    • Contact-sales pricing makes plan comparison less immediate
    • Its enterprise focus may exceed the needs of smaller teams
    • Development is limited to demos, development, and capability evaluations
  • Neo4j9.3/10 · Free plan · 14-day trial

    A developer-focused property graph with broad tooling, cloud options, and AI-ready search.

    Visit Neo4jFull verdict →
  • Progress Semaphore9.0/10 · Pricing on request · 30-day trial

    A mature platform for ontology management, semantic enrichment, and enterprise knowledge graphs.

    Visit siteFull verdict →

More comparisons

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update