ClearHandoff
Security & Trust
Transparency about how we handle your data, where it's stored, and how we keep it secure.
This page describes the infrastructure for our standard plans (Free, Pro, Scale). For Enterprise plans, we offer customization in hosting regions, AI models, and compliance requirements. Learn about Enterprise →
Infrastructure & Hosting
ClearHandoff is hosted on industry-leading cloud infrastructure. All services are provided by established vendors with strong security track records.
| Service | Provider | Region | Purpose |
|---|---|---|---|
| Application Hosting | Heroku (Salesforce) | US | Runs the ClearHandoff web application |
| Database | Heroku Postgres | US | Stores user accounts, drawings metadata, comments |
| File Storage | Amazon S3 | US | Stores uploaded PDF drawings |
| AI Processing | OpenAI | US | Analyzes drawings for AI-powered reviews (OpenAI) |
| AI Processing | Google (Gemini) | US | Analyzes drawings for AI-powered reviews (Gemini) |
| Payments | Stripe | Global | Processes subscription payments |
AI & Data Processing
We use OpenAI and Google Gemini models to power our AI drawing reviews. Here's how your data is handled:
AI models: OpenAI and Google Gemini
Your drawings are not used to train AI models
Data retained up to 30 days for abuse monitoring, then deleted
Data Security
We implement industry-standard security measures to protect your data:
All data encrypted in transit (TLS 1.2+)
All data encrypted at rest (AES-256)
Automated daily backups with point-in-time recovery
Payment Security
All payment processing is handled by Stripe, a PCI-DSS Level 1 certified payment processor.
Stripe is PCI-DSS Level 1 certified
We never store credit card numbers on our servers
Compliance
ClearHandoff is operated by SankeyArt GmbH, a German company subject to EU data protection laws.
ISO 27001 certified — independently audited information security management system
GDPR compliant — we process data lawfully and transparently
Data Processing Agreements (DPA) available on request
Full data deletion available upon request
Need More Control?
Enterprise plans offer additional security and compliance options tailored to your organization's requirements.
Questions about our security practices? Contact us at support@sankeyart.com
Last updated: March 2026
ClearHandoff
AI-powered drawing review
