Yolkbook: Chicken Egg Tracker

Your flock data lives on your phone, never on our servers. Count today's eggs from the home screen widget, see what each egg costs and export whenever you like.

Yolkbook is an egg tracker and flock journal for backyard chickens, ducks, quail, geese and turkeys. Track your hens' egg production, feed costs and hatches — all on your phone.

Count eggs in one tap

• Today screen with a big counter for each flock: +1, −1, done.
• Home screen widget: add eggs without opening the app.
• Optional per-hen counts, egg marks (double yolk, soft shell, broken…), monthly calendar heatmap.

Know what your eggs cost

• Log feed, bedding and other expenses in seconds — the last values are remembered.
• Cost per egg and per dozen, compared with your store price.
• Egg sales and eggs used at home, running balance, charts by week, month and year.

Hatching made simple

• Incubation calendar with candling days, lockdown and hatch day — typical values, always editable.
• Reminders for each stage, hatch rate, add the chicks to your flock in one tap.

Your birds, your notes

• Birds with photos, breed, age and status history (laying, broody, molting…).
• Free-text notes with tags and photos. Your own reminders on your own schedule.

Your data stays with you

• No account, no tracking. Your data never reaches our servers — only your phone's own iCloud backup may copy it to your Apple account.
• Export CSV files for your spreadsheet and PDF monthly/yearly reports.
• One-tap backup file you can keep in Files or iCloud Drive — and restore any time.
• Import egg counts from a spreadsheet or another app's CSV export.

Breeder Pack (optional add-on)

• Simple pedigree: mother and father for each bird, offspring and a 3-generation family tree.
• Hatch history: compare hatch rates by incubator, parents or egg source, species and year.
• Hatch card PDF for selling chicks: hatch date, parents and your own note and contact details. Breeder Pack works on its own, but without Pro the free limits stay (6 named birds, 1 incubation at a time, 1 flock) — for more birds, incubations or flocks you need Pro, or get Pro + Breeder Pack together. It shows only the data and text you enter.

Pay once Free forever: egg counter, widget, cost per egg, backup and CSV export; 1 flock, 6 named birds, 1 incubation at a time, 90 days of statistics. Try everything in Pro free for 14 days — you start the trial when you choose. Pro: unlimited flocks and birds, full history, PDF reports, several incubations at once — one payment, no subscription. Breeder Pack is a separate one-time add-on, or get Pro + Breeder Pack together.

Yolkbook doesn't give veterinary or feeding advice. It records what you enter.