Web applications
Responsive, fast web apps and the services behind them — modern front ends, APIs, databases, and deployment on global cloud and edge infrastructure.
Independent software company · New York
We design, build, and operate web and mobile applications.
Pathrew LLC is a software company based in New York. We take products from idea to launch and keep running them afterwards — front ends, mobile apps, APIs, data, and infrastructure, all handled in-house.
About
Pathrew LLC is a limited liability company based in New York, United States. We are an independent software studio: we design, build, and operate web and mobile applications and the backend services behind them. Our current products serve Korean-speaking users — a free Saju (Four Pillars) and manseryeok calendar service on the web, and mobile apps now in development — and we continue to explore new products beyond that domain.
Two things matter most to us. The first is correctness: we build on well-defined data, test our calculations automatically, and version what we ship so results stay consistent across every product. The second is respect for the people who use our products: we collect only what a feature needs, we do not sell personal information, and we keep personal data on the user's own device whenever a product allows it.
What we do
Mobile applications
iPhone apps built with cross-platform tooling, designed to work offline where it matters, to respect privacy, and to meet App Store requirements from day one.
Data and calculation engines
Domain-specific computation, such as our in-house Korean lunisolar calendar engine covering 1900–2050, backed by automated tests so results stay consistent across products.
Products
- TheAlignEight Live · Korean
- A free Korean-language manseryeok and Saju chart service on the web, with astronomically computed solar terms and historical time-zone corrections. Operated by Pathrew LLC at thealigneight.com.
- Saju app for iPhone In development
- Our first mobile app — a Saju calendar with saved charts and daily readings. Details, support resources, and legal documents for the app will be published on this site when it launches.
This page is updated as new products launch.
Contact
- General inquiries
- contact@pathrew.com
- Product support
- support@pathrew.com
- Location
- New York, United States
We usually reply within two business days.