Observed arrival · 2026-09-26

Calf Book’s records for the whole calf crop

calfbook.dev Visit website

Editorial interest 78/100 Selection signal · not a rating of the site

Calf Book is herd-record software for cow-calf operations, organizing animal IDs, pedigrees, crop years, and dated weights.

Landing page captured for the 2026-09-26 issue.

For: Cow-calf producers managing herd records
Worth noticing: The page reports a conversion of 875,011 animals and 661,377 calvings from the older CalfBook system, dating back to 2005.

Field notes

The sample record shows the kind of detail the system is built around: EID, dam and sire links, calving information, and dated weights. The homepage reports that legacy records covering 875,011 animals and 661,377 calvings were converted, with data reaching back to 2005. It also says the phone app is still in development; offline recording and later syncing are presented as a build goal, not a verified current capability.

Observed signals

Read the marks

Editorial observations of this landing page, not a rating.

○OpenPublic substance visible

⊠LoginAccess appeared gated

✦PrettyNotable craft visible

●ProPolished or operationally mature

◎NicheUnusually specific use

One card from the complete issue

The Phone Disclosure Test

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