Frandeer
KO

About Frandeer

Frandeer (프랜디어) builds web services and free tools. We develop and operate web services, including CHEOTSUM, and are developing NEXT-ERD.

CHEOTSUM: our flagship service

CHEOTSUM (첫숨) launched in July and serves a small group of early users. It helps expectant parents explore traditional Korean cultural birth-date references within scheduling windows approved by their medical providers.

A rules-based engine calculates 11 traditional calendar and birth-chart criteria. AI explains the calculated results in Korean. The service offers a free candidate calendar and one-time paid digital reports: KRW 9,900 for the basic report and KRW 29,000 for the premium report with PDF download. These are cultural references, not medical advice or predictions of a child's future.

View the public CHEOTSUM sample report, calculated from fictional family inputs. No personal information is needed to inspect the example.

NEXT-ERD: database design

We are developing NEXT-ERD, a browser-based entity-relationship diagram tool for designing database tables and their relationships, with SQL import and export.

How we use Claude

We currently use Claude subscriptions for analysis, software development, operations, and report drafting. Direct Claude API integration is planned, not yet in production: our next step is to generate Korean report explanations from CHEOTSUM's structured results. Calculations and scoring remain in our rules-based engine, and we will evaluate explanations for consistency and clarity before delivery.

Free tools and our AI blog

Frandeer is a browser-first portal of small, useful free web tools — for documents, marketing helpers, SEO, quick calculations, and practical everyday workflows — alongside an AI-focused blog.

We start with fast, no-login tools and expand each release with QA, SEO pages, and a measurement plan.

About the brand