The Most Profitable Way to Add Official Charts to Your App
Official S-57 Vector Charts for iOS Developers
Fixed price — USD 5 per country per year (12-month subscription), full national coverage
The Infrastructure for Your Marine App
Developer-First
Built by engineers at Siitech Marine Inc. for fast integration into mobile navigation apps. A production-ready iOS Chart SDK, clear documentation, and sample projects to get you started quickly. Already integrated by leading mobile navigation platforms.
Official S-57 Vector Charts
Licensed from 45+ national Hydrographic Offices worldwide. Professional ENC-quality chart data optimized for mobile navigation apps, with coverage continuously expanding.
Scalable Pricing for Mobile Navigation Apps
A low per-user licensing fee, combined with official national charts starting at $5 USD per country, per year. This model is designed to scale with your business and allows you to resell charts to consumers at your own retail price, maximizing margins as your user base grows. No hidden fees. No unnecessary complexity.
Future-Ready Chart Technology
Siitech Marine is actively preparing for the IHO S-100 framework, including next-generation S-101 ENC standards, ensuring a smooth transition as new official chart products become available.