Koi Record Intelligence

Koi intelligence for serious collectors.

Koi Worth helps collectors keep every fish documented in one place, from breeder and variety details to photo history, size, and development notes.

Built for hobbyists who take their koi seriously, the app makes it easier to review progress over time and make more confident decisions about care, selection, and value.

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Track every koi clearly

Keep breeder, bloodline, variety, size, age, and acquisition details organized so each koi has a complete record you can revisit at any time.

Review development over time

Compare photos and notes across seasons to follow body shape, skin quality, pattern balance, and overall progress as a fish matures.

Estimate value with context

Use image-based analysis as one more input alongside breeder reputation, conformation, and development history when evaluating a koi.

Designed for collectors who document with purpose.

Whether you are tracking promising tosai or maintaining long-term records on mature koi, Koi Worth keeps the information that matters easy to review and share.

Koi records, photo history, development notes, and valuation support in one place.

Public information

Use the support page for contact details and response expectations, and the privacy policy for information about how Koi Worth handles app data.

Who Koi Worth is for

Built for koi keepers, collectors, and enthusiasts who want cleaner records and better insight into how each fish is developing.