battles / Fraud
Ravelin vs Subuno
Ravelin ($2,500/mo/mo, vibe code 3/10) vs Subuno ($149/mo/mo, vibe code 6/10). Subuno is the easier one to rebuild yourself — here is what you lose either way.
Fraud
$2,500/mo/mo
- MVP
- 2 weeks
- Full replacement
- 12-24 months, due to the need for continuous ML training, global consortium data, and fraud feedback loops
Fraud
$149/mo/mo
- MVP
- 1 week
- Full replacement
- 6-12 months, due to third-party API integration maintenance and continuous rule optimization
easier to rebuild
get the build prompt →price gap / year
$28,212/mo
running both / year
$31,788/mo
our call
Start with Subuno — highest vibe code, weakest moat.
Ravelin
While you can easily build a basic heuristic rule engine with AI, you cannot replicate Ravelin's core value: cross-merchant network intelligence and trained machine learning models. Without shared fraud signals and historic chargeback ground truth, a self-built system will either bleed money to bad actors or block real sales.
you can rebuild
- Static rule-based order evaluation engine
- Manual order review dashboard and queue management
- Basic velocity checks (e.g., requests per IP or email)
- Simple email domain and IP geolocation lookups
- Basic webhook notifications for suspicious orders
what you lose
- Global consortium network signals identifying known fraud actors across merchants
- Client-side JavaScript and mobile SDK device fingerprinting and behavioral telemetry
- Automated machine learning models trained on historical chargeback feedback loops
- Dynamic 3D Secure (3DS2) exemption routing to optimize checkout conversion rates
- Dedicated graph visualization engine for linked accounts and fraud rings
real moats
- Global network effect: signals from one merchant immediately protect all other network merchants
- Proprietary training dataset derived from millions of verified chargeback ground truth labels
- Sub-100ms real-time evaluation infrastructure integrated directly into payment pipelines
open source escape hatches
- Apache PredictionIO Apache-2.0
- PostHog MIT
- Neo4j Community Edition GPL-3.0
Subuno
Subuno's underlying tech is an IF/THEN rules engine connected to third-party identity/risk lookup services. Rebuilding the UI and rule execution in Node.js is trivial, but maintaining contracts, schema mappings, and API keys for a dozen external fraud vendors is not worth the overhead for most merchants.
you can rebuild
- Custom IF/THEN rule engine for flagging high-risk orders
- Manual order review queue with approve/reject actions
- Email alerts and webhook triggers for flagged transactions
- Basic IP geolocation and address verification (AVS) checks
- Custom merchant-defined whitelists and blacklists
what you lose
- Pre-integrated access to 15+ external fraud data providers
- Unified billing and unified payload normalization across third-party identity APIs
- Cross-merchant shared bad-actor detection network
- Zero-maintenance e-commerce store platform plugins
- Turnkey automated order status updating in connected store platforms
real moats
- Aggregated integration maintenance across a broad mesh of specialized risk APIs
- Cross-merchant shared blacklists and fraud signal history
- Low subscription fee relative to managing multi-vendor API overhead directly
open source escape hatches
- json-rules-engine MIT
- Ruru MIT
- Activepieces MIT
Questions people ask
Which is easier to rebuild with AI, Ravelin or Subuno?
Subuno. It scores 6/10 on vibe code with a moat of 3/10, so an AI-assisted MVP takes about 1 week and a full replacement about 6-12 months, due to third-party API integration maintenance and continuous rule optimization.
Which one costs less, Ravelin or Subuno?
Subuno at $149/mo/mo for a typical mid-market store. The gap between the two is about $28,212/mo a year.
What do I lose if I replace Ravelin?
Global consortium network signals identifying known fraud actors across merchants Client-side JavaScript and mobile SDK device fingerprinting and behavioral telemetry Automated machine learning models trained on historical chargeback feedback loops
What do I lose if I replace Subuno?
Pre-integrated access to 15+ external fraud data providers Unified billing and unified payload normalization across third-party identity APIs Cross-merchant shared bad-actor detection network
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