Self-hosted on EU infrastructure. Zero licensing fees. Deploy in 5 minutes.
GDPR violations, excessive costs, and data sovereignty concerns
50-employee company: 2,400-17,400 EUR/year | 100-employee company: 5,000-35,000 EUR/year | 200-employee company: 10,000-70,000 EUR/year
Self-hosting means you control everything
Deploy on Hetzner (Germany), OVH (France), or any EU provider. All employee data stays within EU borders. No international data transfers required. Full GDPR Article 44-50 compliance.
Your infrastructure, your data. No Data Processing Agreements with US vendors. You are the data controller.
Full database access for GDPR requests. Export employee data in machine-readable format. Delete personal data with one command. Complete audit trail for compliance documentation.
Reviewer anonymity built into architecture. Configurable data retention policies. Minimal data collection principles. Encrypted connections and secure token-based access.
Open source means full transparency for auditors. Document data flows with included architecture diagrams. Track all administrator actions. Demonstrate technical and organizational measures.
No reliance on Standard Contractual Clauses. No US cloud providers in data path. EU-based deployment eliminates cross-border transfer concerns. Legal certainty for your compliance team.
Your EU Server (Hetzner/OVH) → PostgreSQL Database (EU) → Backup Storage (EU) → Admin Access (HTTPS) → Reviewer Tokens (No authentication required)
All data remains in EU jurisdiction at all times
Real numbers for European tech companies
| Company Size | Lattice Cost | Culture Amp Cost | Blik Hosted | Blik Self-Host | Max Savings |
|---|---|---|---|---|---|
| 50 employees | 18,000 EUR | 21,000 EUR | 588 EUR | 600 EUR | 20,400 EUR |
| 100 employees | 36,000 EUR | 42,000 EUR | 2,388 EUR | 720 EUR | 41,280 EUR |
| 200 employees | 72,000 EUR | 84,000 EUR | 2,388 EUR | 960 EUR | 83,040 EUR |
| 500 employees | 180,000 EUR | 210,000 EUR | Custom | 1,440 EUR | 208,560 EUR |
Blik Hosted = €49/month (50 employees) or €199/month (200 employees). Self-host costs = EU VPS only (Hetzner: €50/month). No per-user fees. No licensing costs.
Developer-friendly deployment and technology stack
Admin dashboard with audit trails and access controls
Anonymized reports with privacy thresholds
Django 5.x with type hints and modern patterns. PostgreSQL 15+ for reliability. Clean architecture following best practices. Well-documented codebase.
Production-ready Docker Compose setup. Gunicorn WSGI server. WhiteNoise static file serving. Automatic database migrations. Zero-downtime updates.
Engineering-appropriate skill assessment framework. Five levels from Novice to Expert. Aligns with technical career ladders. Resonates with developer culture.
Germany: Hetzner Cloud (excellent price/performance, 100% renewable energy, Nuremberg datacenter)
France: OVH Cloud (strong privacy reputation, Strasbourg/Roubaix datacenters)
Netherlands: TransIP (Dutch privacy laws)
Finland: UpCloud (Nordic data protection standards)
Any provider with EU datacenters works. Minimum specs: 2 vCPU, 4GB RAM, 40GB SSD.
Use EU-based SMTP providers: Mailgun EU (Dublin datacenter), SendGrid EU, Amazon SES EU (Frankfurt), or your own mail server. Configure SMTP in the setup wizard. All email processing stays in EU. Templates are simple text, no tracking pixels.
Currently, admin authentication uses Django's built-in system. LDAP/SSO integration is on the roadmap. For now, admins log in with username/password. Reviewers never authenticate (token-based access only). You can modify the authentication backend since it's open source.
Blik includes documentation showing:
1) Data flow diagrams proving EU residency
2) Technical measures (encryption, access controls, anonymity)
3) Organizational measures (admin audit logs, retention policies)
4) Data subject rights implementation (export, deletion)
Open source code allows auditors to verify technical controls directly. For GDPR compliance guidance, see GDPR.eu and European Data Protection Board.
Export your employee list from existing tool as CSV. Import into Blik via Django admin or API. Historical review data can be archived separately (Blik focuses on new cycles, not historical reporting). Plan 2-4 weeks for parallel running during transition period. Most teams switch completely after first successful cycle.
PostgreSQL dumps to EU-based storage (Hetzner Storage Box, S3 EU buckets). Set automated retention policies matching your data retention requirements. Implement deletion scripts for GDPR "right to be forgotten" requests. All backup data stays in EU jurisdiction. Encrypted backups recommended for extra security.
Yes. Disable external AI API calls and use local models. Configure SMTP to your internal mail server. All web traffic stays internal. No outbound internet access required. Perfect for highly regulated environments or companies with strict security policies.
No Standard Contractual Clauses needed. No Schrems II concerns. No DPA negotiations with US vendors. Your legal team will thank you.
Redirect 17,000-83,000 EUR annually from US vendors to engineering salaries, infrastructure, or other priorities. Finance and leadership approved.
Developers trust open source more than black boxes. Self-hosting appeals to technical culture. Can customize and extend as needed.
No sales calls, no complex contracts, no multi-week implementations. Deploy in 5 minutes, run first cycle in 30 minutes. Ship it Friday, use it Monday.
Performance review data is sensitive. Self-hosting means complete control. No third parties, no vendor breaches, no data leaks.
Open source means no vendor lock-in. If Blik stops development, you still have the code. Community-driven means continuous improvement.
Building a privacy-first tech stack with EU-based tools
Blik joins a growing ecosystem of European alternatives to US-based SaaS. For general surveys, consider:
Replace Slack with EU-based alternatives:
Essential reading for EU tech compliance:
Recommended infrastructure partners:
Understanding AGPL and software freedom:
Connect with the EU tech ecosystem:
Blik is part of the movement to create privacy-first, GDPR-native alternatives to US SaaS. By choosing European tools, you support data sovereignty, reduce compliance risk, and strengthen the EU digital economy.
Save 17,000-83,000 EUR annually. EU data residency. Open source transparency.
Don't want to manage infrastructure? We offer a fully managed, GDPR-compliant version hosted in EU data centers for just €49/month. No server management, automatic updates, daily backups.
View Hosted PlansTrusted by European tech companies from Berlin to Barcelona