Skip to content
PricingDocs

tracio.ai vs Castle

10 advantages

10x more signals at 10x lower latency — a Go/Rust stack engineered for throughput, not bolted onto Rails

Browser Signals: 1,000+ (Device Identification)Response Time: <30ms (Go/Rust)Client-Side Agent: Lightweight 28KB JSData Pipeline: ClickHouse + Kafka

Top Advantages

Browser Signals

tracio.ai: 1,000+ (Device Identification) vs Castle.io: ~30

Response Time

tracio.ai: <30ms (Go/Rust) vs Castle.io: 150-400ms

Client-Side Agent

tracio.ai: Lightweight 28KB JS vs Castle.io: Heavy SDK

Feature-by-Feature Comparison

Browser Signalstracio.ai: 1,000+ (Device Identification)Castle.io: ~30
Response Timetracio.ai: <30ms (Go/Rust)Castle.io: 150-400ms
Client-Side Agenttracio.ai: Lightweight 28KB JSCastle.io: Heavy SDK
Data Pipelinetracio.ai: ClickHouse + KafkaCastle.io: PostgreSQL monolith
Bot Detectiontracio.ai: Bot Detection (multiple methods)Castle.io: Basic
VPN Detectiontracio.ai: IP Intelligence (5 methods)Castle.io: IP-based only
Open Sourcetracio.ai: YesCastle.io: No
Canvas Fingerprintingtracio.ai: Advanced GPU-accelerated analysisCastle.io: None
Audio Fingerprintingtracio.ai: Full AudioContext pipelineCastle.io: None
Horizontal Scalingtracio.ai: Stateless Go workersCastle.io: Vertical only
User Behavior Analyticstracio.ai: PlannedCastle.io: Yes
Session Replaytracio.ai: Not availableCastle.io: Available
Response Latencytracio.ai: <50msCastle.io: 100-200ms
Incognito Detectiontracio.ai: Multi-methodCastle.io: Limited
TLS Fingerprintingtracio.ai: JA4 hash analysisCastle.io: Limited
Tampering Detectiontracio.ai: Cross-validation engineCastle.io: Basic
Documentation Qualitytracio.ai: Signal-level docsCastle.io: API docs
Pricing Transparencytracio.ai: Public pricingCastle.io: Custom only
Risk Scoringtracio.ai: Suspect score 0-100Castle.io: Risk levels
Session Replaytracio.ai: Not availableCastle.io: Available

Honest Tradeoffs

We believe in transparency. Here is where we excel and where Castle.io has strengths.

Where tracio.ai Excels

  • 5x the browser signal coverage for richer device profiling
  • Full data privacy with no third-party data sharing
  • Open source client for full transparency and auditability
  • Transparent public pricing vs opaque custom-only pricing
  • Faster response times (<50ms vs 100-200ms) for better user experience

Where Castle.io Has Strengths

  • Built-in user behavior analytics and session replay
  • Longer track record in enterprise account security
  • Pre-built integrations with more identity providers

Pricing Comparison

Cost analysis at different usage levels.

2,500/mo
FreeCustom pricing
100,000/mo
$79/moCustom pricing
500,000/mo
CustomCustom pricing
Data residency
EU + US regionsLimited

Switching from Castle.io Is Easy

tracio.ai provides deeper device intelligence than Castle. You may want to run both solutions in parallel during migration to compare detection results.

1

Add the tracio.ai client SDK to your frontend (3 lines of JavaScript). Remove the Castle.js SDK if you were using client-side collection

2

Migrate your server-side Castle API calls to the tracio.ai API. Map Castle's risk levels to tracio.ai's suspect scores and smart signals for equivalent functionality

3

Configure webhooks and alerting to match your existing Castle-based workflows. tracio.ai supports the same real-time event patterns

Why Switch to tracio.ai

  • Browser Signals: 1,000+ (Device Identification) vs ~30
  • Response Time: <30ms (Go/Rust) vs 150-400ms
  • Client-Side Agent: Lightweight 28KB JS vs Heavy SDK
  • Data Pipeline: ClickHouse + Kafka vs PostgreSQL monolith
  • Bot Detection: Bot Detection (multiple methods) vs Basic
  • VPN Detection: IP Intelligence (5 methods) vs IP-based only
  • Open Source: Yes vs No
  • Canvas Fingerprinting: Advanced GPU-accelerated analysis vs None
  • Audio Fingerprinting: Full AudioContext pipeline vs None
  • Horizontal Scaling: Stateless Go workers vs Vertical only

Switch to tracio.ai today

Get started in minutes with a drop-in replacement. No credit card required.

Start Free TrialBook a Demo